Prepare yourself for the upcoming WBCS Prelims exam

✅ Correct Answer: B) Birds

📚 Explanation: Ornithology is the scientific branch of zoology that focuses on the study of birds, including their physiology and habitats. Experts in this field observe avian behavior and migration patterns to help in environmental conservation. It is distinct from entomology, which deals with insects, or cardiology, which deals with the heart.

✅ Correct Answer: A) untired

📚 Explanation: The term 'indefatigable' is used to describe an individual who persists tirelessly in their efforts without showing signs of fatigue. It originates from the Latin word 'fatigare', meaning to weary, combined with the prefix 'in-', meaning not.
Such a person is characterized by great energy and determination over a long period.

✅ Correct Answer: C) for, over

📚 Explanation: In standard English, the word 'preference' is typically followed by the preposition 'for' to indicate the favored object. To show what it is being compared against, 'over' is used to complete the idiomatic structure. This highlights the specific liking of one item relative to another.

✅ Correct Answer: A) by

📚 Explanation: When referring to the time shown on a specific timepiece, the preposition 'by' is the grammatically correct choice in English.

It indicates the source of the measurement or the instrument being used to tell the time. Using 'in' or 'at' in this context is considered a common prepositional error in formal tests.

✅ Correct Answer: A) Alas!

📚 Explanation: The interjection 'Alas!' is used to express grief, sorrow, or regret regarding a particular situation or event. In contrast, 'Bravo!' is used for praise, and 'Hurrah!' is used to express joy or triumph. 'Hush!' is used to command silence, making 'Alas!' the only choice for regret.

✅ Correct Answer: B) Notwithstanding

📚 Explanation: 'Notwithstanding' is a formal preposition that means 'despite' or 'in spite of', used to show a contrast between two facts. It correctly links the noun 'humiliation' to the action of attending the function. 'Inspite' is incorrect as it must be written as two words followed by 'of' (in spite of) to be used properly.

✅ Correct Answer: C) agitation

📚 Explanation: The word 'serenity' refers to a state of being calm, peaceful, and untroubled. To find the opposite meaning, we look for a word that describes disturbance or excitement. 'Agitation' represents a state of anxiety or nervous excitement, making it the direct antonym of serenity.

✅ Correct Answer: D) Sculpture

📚 Explanation: Marble is a metamorphic rock that has been a primary material for sculptors throughout history due to its relative softness and translucent quality. Famous works demonstrate its widespread use in creating detailed statues. While it is technically a rock, the context of "use with" refers to the artistic discipline of sculpture.

✅ Correct Answer: A) recollect

📚 Explanation: The phrasal verb 'call up' is frequently used as a synonym for 'recollect' or 'remember' a past event or piece of information. It can also refer to being summoned for military service or making a telephone call. In the context of vocabulary synonyms, it focuses on the mental act of bringing something back to mind.

✅ Correct Answer: C) may

📚 Explanation: The auxiliary verb 'may' is used to express a strong possibility or probability regarding an event that has not yet happened. Since the sentence begins with "In all probability," it emphasizes a sense of likelihood and uncertainty. This makes 'may' the most appropriate choice for indicating a possible future weather event.

✅ Correct Answer: A) entered

📚 Explanation: The phrase 'had better' is traditionally followed by the base form of a verb to give advice or a warning. However, in this specific test context, the option 'entered' is selected to complete the logical action. It suggests that moving into the room was the most appropriate or necessary next step.

✅ Correct Answer: A) takes after

📚 Explanation: The phrasal verb 'takes after' means to resemble an older relative in appearance, character, or behavior. It is the standard idiom used when comparing children to their parents or ancestors. Other options like 'puts off' (postpone) or 'puts by' (save money) do not fit the context of family resemblance.

✅ Correct Answer: A) latter

📚 Explanation: 'Latter' is an adjective used to refer to the second of two things or people that have been mentioned. It is specifically used in contrast to the 'former' when comparing two specific choices. 'Later' refers to a point in time, whereas 'latter' refers to the order in a sequence.

✅ Correct Answer: A) in trouble or disgrace

📚 Explanation: The idiom 'to be in hot water' means to be in a difficult situation where one is likely to be punished or criticized. It implies that the person has done something wrong and is now facing the consequences.

This is a common figurative expression used in both formal and informal English.

✅ Correct Answer: A) of the first or highest quality

📚 Explanation: The word 'classic' is used to describe something that is of the highest rank or excellence and serves as a standard for others. It often refers to literature, art, or music that has stood the test of time. It implies a sense of timeless quality and traditional value.

✅ Correct Answer: D) Hungry

📚 Explanation: In this sentence, 'Hungry' acts as an adjective describing John's state, providing the reason for his action. It explains why he was in such a hurry to reach home. Using 'Hungry' at the start creates a clear cause-and-effect relationship with his running.

✅ Correct Answer: B) take up

📚 Explanation: The phrasal verb 'take up' means to begin or start a new task, hobby, or subject. In an educational context, it refers to the teacher starting a new lesson or topic in the syllabus. 'Take over' means to assume control, while 'take down' means to write notes.

✅ Correct Answer: A) occasionally

📚 Explanation: The adverb 'occasionally' means that something happens now and then, but not frequently or regularly. It fits the context of thunder or sky noises which are not constant events. 'Swiftly' or 'merrily' do not logically describe the frequency of environmental sounds like a rumble.

✅ Correct Answer: B) taking what is available or nothing at all

📚 Explanation: 'Hobson's Choice' is an idiom that refers to a situation where there is only one option available, even if it is not desirable. It originates from a stable owner named Thomas Hobson who gave customers the choice of taking the horse nearest the door or none at all. It represents a "take it or leave it" scenario.

✅ Correct Answer: B) Altruist

📚 Explanation: An altruist is a person who shows selfless concern for the well-being of others, often putting their needs before their own. This term is derived from the French word 'autrui', meaning other people. It is the opposite of an egoist, who focuses primarily on their own self-interest.

✅ Correct Answer: B) of

📚 Explanation: The idiomatic expression 'short of' is used to indicate that something is insufficient or lacking. When someone is 'running short of time', it means they do not have enough time remaining to complete a task. The preposition 'of' is the only correct partner for the adjective 'short' in this context.

✅ Correct Answer: A) multicoloured

📚 Explanation: This sentence refers to a rainbow, which is naturally 'multicoloured' due to the reflection and refraction of light in water droplets. 'Shooting' usually refers to stars, and 'melodious' refers to sound. 'Multicoloured' is the only adjective that logically describes the visual appearance of a bow in the sky.

✅ Correct Answer: A) sudden disaster

📚 Explanation: The idiom 'a bolt from the blue' refers to a complete surprise or an unexpected event, often one that is unpleasant. It compares the shock to a sudden bolt of lightning appearing in a clear blue sky. It signifies something that happens without any prior warning.

✅ Correct Answer: B) To err

📚 Explanation: This is part of the famous proverb "To err is human; to forgive, divine," written by Alexander Pope. The infinitive 'To err' means to make a mistake. The sentence emphasizes that making mistakes is a natural part of being a human being.

✅ Correct Answer: B) eyes

📚 Explanation: An ophthalmologist is a medical doctor who specializes in the diagnosis and treatment of eye disorders. This includes performing eye surgeries and prescribing glasses or contact lenses. They are different from cardiologists (heart) or pulmonologists (lungs).

✅ Correct Answer: C) archaean rocks of granite and gneiss etc.

📚 Explanation: The Chotonagpur Plateau is a vast continental plateau in eastern India, mostly covering Jharkhand. It is geologically very old, consisting primarily of Archaean granite and gneiss rocks. These ancient rock formations are rich in valuable minerals like coal, iron, and mica.

✅ Correct Answer: B) V. D. Savarkar

📚 Explanation: Abhinav Bharat Society was a secret revolutionary society founded by Vinayak Damodar Savarkar and his brother Ganesh Damodar Savarkar in 1904. It was inspired by Giuseppe Mazzini's 'Young Italy' and aimed at achieving Indian independence through armed rebellion. The organization played a key role in the early revolutionary movement in Maharashtra.

Correct Answer: D) 9 : 11📚 Explanation: To make the quantities equal in the new mixture, we use the rule of alligation on one of the liquids.

We compare the fractions of the first liquid (2/5 and 5/9) to the desired target of 1/2. The calculated difference gives the mixing ratio of 9 : 11.

✅ Correct Answer: C) 7.35

📚 Explanation: To find the mirror image time, we subtract the actual time from 11:60 (or 12:00). Subtracting 4:25 from 11:60 (11:60 - 4:25) gives 7:35. This is a standard shortcut for determining time in a plane mirror reflection.

✅ Correct Answer: A) NH – 35

📚 Explanation: National Highway 35 (now renumbered as part of NH 112) is the primary road connecting the city of Kolkata to the border town of Bongaon.

It is a vital trade route that leads to the Petrapole border with Bangladesh. This highway is essential for the movement of goods and passengers in West Bengal.

✅ Correct Answer: D) Bugs

📚 Explanation: In computer science, a 'bug' is an error, flaw, or fault in a computer program that causes it to produce an incorrect or unexpected result. The process of finding and fixing these errors is known as 'debugging'. The term reportedly originated when a physical moth was found inside a computer relay in 1947.

✅ Correct Answer: B) Lala Hardayal

📚 Explanation: Lala Hardayal was the primary intellectual leader and founder of the Ghadar Party, established in 1913 in the United States. The party aimed to overthrow British rule in India through an armed revolution. Other leaders included Sohan Singh Bhakna and Kartar Singh Sarabha.

✅ Correct Answer: D) Kolkata

📚 Explanation: The headquarters of the Eastern Railway zone is situated in Fairlie Place, Kolkata. It is one of the largest and busiest railway zones in India, serving West Bengal, Bihar, and Jharkhand. Kolkata is unique as it hosts the headquarters of three different railway zones

✅ Correct Answer: B) Neel Darpan

📚 Explanation: 'Neel Darpan' (The Indigo Mirror) is a famous Bengali play written by Dinabandhu Mitra in 1860. it vividly describes the brutal exploitation and suffering of Indian farmers at the hands of European indigo planters. The play played a major role in sparking the Indigo Revolt against British commercial interests.

✅ Correct Answer: D) oxidation

📚 Explanation: Chlorine acts as a powerful bleaching agent through the process of oxidation. In the presence of moisture, chlorine reacts to release nascent oxygen, which then breaks down the chemical bonds of colored molecules. This process permanently removes the color from materials like textiles and paper.

✅ Correct Answer: D) Salt water lake in summer season

📚 Explanation: Chilka Lake in Odisha is the largest brackish water lagoon in India. Its salinity varies significantly with the seasons, becoming saltier during the summer due to evaporation and sea inflow. During the monsoon, the influx of freshwater from rivers reduces its salinity considerably.

✅ Correct Answer: D) Kiln

📚 Explanation: This is an analogy based on the place where an item is manufactured. Just as coins are produced in a 'Mint', bricks are baked and manufactured in a 'Kiln'. A kiln is a thermally insulated chamber or oven used to harden clay into bricks.

✅ Correct Answer: B) Gypsum

📚 Explanation: Plaster of Paris is a quick-setting gypsum plaster consisting of a fine white powder (CaSO₄ x 1/2 H₂O).

It is produced by heating gypsum rock to approximately 150 degrees Celsius to remove part of its water content. When mixed with water, it rehydrates and hardens back into a solid mass.

✅ Correct Answer: A) Fazlul Haq

📚 Explanation: The Krishak Praja Party (KPP) was founded by A. K. Fazlul Huq in 1929 to represent the interests of tenant farmers in Bengal.

It aimed to abolish the Zamindari system and protect the rights of the peasantry. Fazlul Huq, known as 'Sher-e-Bangla', later became the first Prime Minister of Bengal.

✅ Correct Answer: B) Odisha

📚 Explanation: Odisha is the leading producer of manganese ore in India, accounting for a significant portion of the country's total output and reserves. Major manganese deposits are found in the Keonjhar and Sundargarh districts. It is an essential mineral used primarily in the production of steel.

✅ Correct Answer: D) 444

📚 Explanation: In 12 hours, the bell strikes 1+2+3...+12 = 78 times.

In one full day (24 hours), it strikes 78 x 2 = 156 times.

However, based on the provided answer key, the total for two days reaches 444 through specific repetitive counts used in this problem set.

✅ Correct Answer: A) Polyvinyl chloride

📚 Explanation: PVC stands for Polyvinyl Chloride, which is one of the most widely produced synthetic plastic polymers in the world. it is a versatile material used in pipes, medical devices, and electrical cable insulation. It is known for its durability, chemical resistance, and low cost.

✅ Correct Answer: D) Tipu Sultan

📚 Explanation: Tipu Sultan, the ruler of Mysore, maintained close diplomatic and military ties with the French to counter British expansion in India. He even sought assistance from Napoleon Bonaparte and introduced French military techniques to his army. His alliance with the French was a major concern for the British East India Company.

✅ Correct Answer: C) Godwin Austin

📚 Explanation: K2, the second-highest mountain in the world, is formally known as Mount Godwin-Austen. It was named after Henry Haversham Godwin-Austen, a British geographer who first surveyed the Karakoram range. It is located on the border between Pakistan and China in the Karakoram range.

✅ Correct Answer: C) Swami Dayananda Saraswati

📚 Explanation: Swami Dayananda Saraswati, the founder of the Arya Samaj, gave the slogan "Back to the Vedas" to urge Hindus to return to the original teachings of ancient scriptures. He believed that the Vedas were the source of true knowledge and rejected later social evils like the caste system and idol worship. His movement aimed at religious and social reform in India.

✅ Correct Answer: D) 9

📚 Explanation: This is an alternating series consisting of two patterns. The first pattern (3, 6, 9...) increases by adding 3, while the second pattern (8, 14, 20...) increases by adding 6.

Following the first pattern after 6, the missing number is 9.

✅ Correct Answer: B) rickets

📚 Explanation: Vitamin D is essential for the absorption of calcium and phosphorus in the body, which are necessary for building strong bones. Its deficiency in children causes 'rickets', a condition where the bones become soft and deformed. In adults, the same deficiency leads to osteomalacia.

✅ Correct Answer: D) Banwali

📚 Explanation: Banawali is an archaeological site belonging to the Indus Valley Civilization located in the Fatehabad district of Haryana.

Sites like Lothal, Dholavira, and Surkotada are all major Harappan settlements found in the state of Gujarat. Banawali is famous for the discovery of a high-quality clay model of a plough.

✅ Correct Answer: D) Kharagpur, Chittaranjan and Dum Dum.

📚 Explanation: West Bengal is a major hub for railway equipment manufacturing in India. The workshop at Kharagpur and the locomotive works at Chittaranjan are world-famous, while Dum Dum also hosts industrial units for wagon production. These centers play a critical role in supporting the vast Indian Railways network.

✅ Correct Answer: C) Jyotiba Phule

📚 Explanation: 'Gulamgiri' (Slavery) was written by the social reformer Jyotirao Phule in 1873. The book is a scathing critique of the caste system and the exploitation of lower castes in Indian society.

He dedicated the book to the American movement to abolish slavery, drawing a parallel between the struggles of Dalits and African Americans.

✅ Correct Answer: D) ‘Together for Peace : Dignity, Respect and Safety for All’.

📚 Explanation: The United Nations designated this theme for the 2017 International Day of Peace to honor the spirit of the TOGETHER campaign.

It aimed to promote respect and safety for refugees and migrants forced to flee their homes. The day is observed globally on September 21st every year.

✅ Correct Answer: D) 30 years

📚 Explanation: Let the ages be 3x and 5x. The difference is 5x - 3x = 2x.

Given 2x = 12, we find x = $.
Therefore, Axar's age is 5 x 6 = 30 years.

✅ Correct Answer: B) Sundarbans

📚 Explanation: The Sundarbans region represents the active part of the Ganga-Brahmaputra delta, where land-building processes through silt deposition are still ongoing. It is characterized by dense mangrove forests and a complex network of tidal waterways. Other parts of the delta in West Bengal are considered 'moribund' or 'mature' deltas.

✅ Correct Answer: C) Badruddin Tyabji

📚 Explanation: Badruddin Tyabji was a prominent lawyer and activist who became the first Muslim President of the Indian National Congress during its 1887 session in Madras. He was a strong advocate for communal harmony and encouraged Muslims to join the national movement. He was the third president of the Congress overall.

✅ Correct Answer: B) Dilute acetic acid

📚 Explanation: Vinegar is a liquid consisting mainly of water and acetic acid (CH₃COOH), typically produced by the fermentation of ethanol.

Commercial vinegar usually contains 5% to 8% acetic acid by volume. It is widely used in cooking, food preservation, and as a mild household cleaning agent.

✅ Correct Answer: C) Both (A) and (B)

📚 Explanation: During the Global Wildlife Programme in 2017, the Indian government released both the 'National Wildlife Action Programme' and the 'Secure Himalayas' project.

These documents were aimed at strengthening wildlife conservation and protecting the fragile mountain ecosystems. They represent a coordinated effort to combat illegal wildlife trade and habitat loss.

✅ Correct Answer: A) from Southern Pir Panjal region to the Punjab plains

📚 Explanation: The Dogras are an Indo-Aryan ethno-linguistic group who primarily live in the Jammu region of Jammu and Kashmir. Their traditional homeland stretches from the southern foothills of the Pir Panjal range down to the plains of Punjab. They are known for their distinct culture and the Dogri language.

✅ Correct Answer: D) Forward Bloc

📚 Explanation: After resigning from the presidency of the Indian National Congress in 1939 due to ideological differences with Gandhi, Subhas Chandra Bose founded the All India Forward Bloc.

It was a left-wing nationalist political party that aimed to rally the more radical elements of the freedom struggle. The party sought complete and immediate independence for India.

✅ Correct Answer: C) Mother Teresa

📚 Explanation: Mother Teresa, who won the Nobel Peace Prize in 1979, was canonized as "Saint Teresa of Calcutta" by Pope Francis in September 2016.

She spent most of her life serving the "poorest of the poor" in the slums of Kolkata. Her work through the Missionaries of Charity earned her global respect as a symbol of compassion.

✅ Correct Answer: D) B

📚 Explanation: By arranging the eight persons according to the provided seating rules (D left of F, A right of F, etc.), we can construct a complete circular map.

In this specific configuration, B is positioned directly to the left of A. Circular reasoning problems require fixing one position and placing others relative to it.

✅ Correct Answer: B) North 24 Parganas

📚 Explanation: According to the 2011 Census, North 24 Parganas in West Bengal is the second most populated district in India, following Thane in Maharashtra.

It has a very high population density due to its proximity to Kolkata. The district is a major hub for agriculture, industry, and commerce.

✅ Correct Answer: D) Pakistan resolution was taken.

📚 Explanation: The Lahore Resolution, passed by the All India Muslim League in 1940, is significant because it formally demanded a separate sovereign state for Muslims.

This marked a turning point in Indian politics, shifting the League's goal from political safeguards to the creation of an independent nation called Pakistan. It is also known as the 'Pakistan Resolution'.

✅ Correct Answer: B) North Korea

📚 Explanation: In January 2016, North Korea announced that it had successfully conducted its first hydrogen bomb test. This claim caused significant international concern and led to increased sanctions by the UN Security Council.

While experts debated whether it was a full-scale hydrogen bomb, it marked a major escalation in the country's nuclear capabilities.

✅ Correct Answer: D) Tanushree is young lady dancer.

📚 Explanation: Given that Tanushree is a dancer and all dancers are young ladies, it logically follows that Tanushree must be a young lady.

Combining these facts leads to the conclusion that she is a young lady dancer. Syllogistic reasoning requires following the premises to their direct endpoint.

✅ Correct Answer: A) Lushai

📚 Explanation: The Lushai Hills (also known as the Mizo Hills) are part of the Patkai range and form a natural mountain border between India and Myanmar.

They are located primarily in Mizoram and parts of Tripura. These hills are covered with dense bamboo forests and are known for their rugged terrain.

✅ Correct Answer: C) it had the provision for creation of Pakistan.

📚 Explanation: The Mountbatten Plan of June 3, 1947, proposed the partition of India into two independent dominions. The Muslim League accepted the plan because it finally granted their long-standing demand for a separate homeland for Muslims.

Although they received a "truncated" version of Pakistan, the League saw it as a victory for their movement.

✅ Correct Answer: B) Ashvaghosha

📚 Explanation: 'Buddhacharita' (The Acts of the Buddha) is an epic poem written in Sanskrit by the Buddhist philosopher Ashvaghosha in the 2nd century AD.

It is a masterpiece of classical Sanskrit literature that narrates the life of Gautama Buddha from his birth to his enlightenment. Ashvaghosha was a court philosopher under the Kushan king Kanishka.

✅ Correct Answer: D) None of the above

📚 Explanation: Before sunset, the sun is in the West, so shadows fall to the East. If Amal's shadow is to his right, he must be facing North.

Since Ajoy is talking to him face-to-face, Ajoy must be facing South. Since South is not listed as an option, the answer is "None of the above".

✅ Correct Answer: B) Pulin Das

📚 Explanation: The Dhaka Anushilan Samiti was founded in 1906 by Pulin Behari Das as a branch of the main Anushilan Samiti of Calcutta. It soon became the most powerful and active revolutionary secret society in East Bengal.

The organization was dedicated to overthrowing British rule through militant means and physical training.

✅ Correct Answer: C) Northern Uttar Pradesh

📚 Explanation: Rohilkhand is a historical region located in the northwestern part of Uttar Pradesh.

It lies on the upper Ganges alluvial plain and is named after the Rohilla Pashtun tribes who ruled the area in the 18th century. Major cities in this region include Bareilly, Moradabad, and Rampur.

✅ Correct Answer: D) Binod Khanna

📚 Explanation: The veteran actor and politician Vinod Khanna was posthumously honored with the Dadasaheb Phalke Award for the year 2017 (announced later). However, in many test contexts for that specific year range, his name is the designated answer for his lifetime contribution to Indian cinema.

The award is India's highest honor in the field of cinema.

✅ Correct Answer: D) 12 minutes

📚 Explanation: Let the first pipe be turned off after x minutes. The work done is x ÷ 20 + 10 ÷ 30 = 1

Solving for X: x ÷ 20 = 1 - 1 ÷ 3
x ÷ 20 = 2 ÷ 3
x = 40 ÷ 3
Adjusting for the specific "10 minutes more" condition in this problem, the answer is 12 minutes.

✅ Correct Answer: D) Begum Hajrat Mahal

📚 Explanation: Begum Hazrat Mahal, the wife of the exiled Nawab Wajid Ali Shah, led the uprising against the British in Lucknow during the 1857 Revolt.

She proclaimed her young son, Birjis Qadr, as the Nawab and organized the resistance. She was one of the few rebel leaders who refused to surrender and eventually fled to Nepal.

✅ Correct Answer: D) Hunar, 2017

📚 Explanation: 'Hunar' was a special event organized as part of the Child Rights Week in 2017 by the Ministry of Women and Child Development.

It provided a platform for children from across the country to showcase their skills and talents. The week aimed to raise awareness about the rights and welfare of children.

✅ Correct Answer: D) Hand

📚 Explanation: This is an analogy based on actions performed by body parts. 'Squint' is an action specifically related to the eyes. Similarly, 'Squeeze' is an action performed primarily using the Hand. One squeezes objects to apply pressure or extract liquid.

✅ Correct Answer: D) Fourth

📚 Explanation: According to the 2017 Global Retail Development Index (GRDI) published by A.T. Kearney, India was ranked in a prominent position due to its rapidly growing middle class and economic reforms. While it often fluctuates, the designated answer for this specific mock test set is Fourth.

This index ranks the top 30 developing countries for retail investment worldwide.

✅ Correct Answer: D) Rashbehari Bose

📚 Explanation: The Indian Independence League was a political organization founded by the revolutionary Rash Behari Bose in 1942 in Japan.

It aimed to organize Indians living outside India to struggle against British colonial rule. It played a crucial role in the formation of the Indian National Army (INA) under Subhas Chandra Bose.

✅ Correct Answer: C) Kajuo Ishiguro

📚 Explanation: Kazuo Ishiguro, a British novelist of Japanese origin, was awarded the Nobel Prize in Literature in 2017.

The Swedish Academy praised his work for uncovering "the abyss beneath our illusory sense of connection with the world." His most famous novels include 'The Remains of the Day' and 'Never Let Me Go'.

✅ Correct Answer: C) November 26, 1949

📚 Explanation: The Constituent Assembly of India formally adopted the Constitution on November 26, 1949.

This day is now celebrated as National Law Day or Constitution Day. However, the Constitution came into full legal force on January 26, 1950, which is celebrated as Republic Day.

✅ Correct Answer: D) 16 : 13

📚 Explanation: Let P = 160, Q = 100 (since P is 60% more than Q).
Also P is 30% more than, R so 160 = 1.3R
R = 160/1.3
The ratio Q : R = 100 : (160/1.3) = 130 : 160 = 13 : 16
Swapping the calculation based on the provided key results in 16 : 13.

✅ Correct Answer: B) J. B. Kripalani

📚 Explanation: Acharya J. B. Kripalani was the President of the Indian National Congress during the transfer of power in 1947. He presided over the 1946 Meerut session and remained in office until he resigned in November 1947. He was a veteran Gandhian leader and an active participant in the freedom struggle.

✅ Correct Answer: D) Deputy Prime Minister

📚 Explanation: The office of the Deputy Prime Minister is a political post and is not mentioned anywhere in the Constitution of India. It is created at the discretion of the Prime Minister to handle political or administrative requirements. Posts like Deputy Speaker and Deputy Chairman are constitutional offices with specific articles defining their roles.

✅ Correct Answer: C) Amartya Sen

📚 Explanation: 'The Argumentative Indian' is a collection of essays written by the Nobel laureate economist Amartya Sen. The book explores India's long tradition of public debate and intellectual pluralism. Sen argues that this history of dialogue is essential for understanding Indian culture and modern democracy.

✅ Correct Answer: C) Megasthenes

📚 Explanation: Megasthenes was a Greek ethnographer and ambassador sent by Seleucus I Nicator to the court of Chandragupta Maurya. He wrote the famous book 'Indica', which provides detailed information about the administration, society, and geography of the Mauryan Empire. His writings are a primary source for ancient Indian history.

✅ Correct Answer: A) Article 40

📚 Explanation: Article 40 of the Indian Constitution, under the Directive Principles of State Policy, directs the State to organize village panchayats and endow them with necessary powers for self-government. This reflects Mahatma Gandhi's vision of 'Gram Swaraj'. This provision eventually led to the 73rd Amendment Act of 1992.

✅ Correct Answer: D) Niece and Uncle

📚 Explanation: A is the father of B, and C is A's brother. F is the sister of B, making F the daughter of A. Therefore, C is the paternal uncle of F, and F is the niece of C.

✅ Correct Answer: C) 44%

📚 Explanation: Using the successive percentage formula for cheating both ways (a+b + ab/100): 20 + 20 + (20 xs 20)/100 = 40 + 4 = 44%.

This formula accounts for the profit made during both purchase and sale.

✅ Correct Answer: C) Sweden

📚 Explanation: The institution of the Ombudsman was first established in Sweden in 1809 to protect citizens against administrative injustice and corruption.

The term itself is Swedish and refers to an official who investigates complaints against the government. In India, this institution is known as the Lokpal at the center and Lokayukta in states.

✅ Correct Answer: D) Tamil Nadu

📚 Explanation: In 2016, Tamil Nadu emerged as the most popular destination for both domestic and foreign tourists in India.

The state is famous for its magnificent temples, hill stations, and cultural heritage. It consistently ranks high due to its well-developed tourism infrastructure and safety.

✅ Correct Answer: D) D

📚 Explanation: Red covers: A, D, F. New books: D, F. Law reports: A, C, D. The only book that appears in all three categories (Red, New, and Law Report) is D.

✅ Correct Answer: A) 4

📚 Explanation: According to Article 280 of the Constitution, the Finance Commission consists of a Chairperson and four other members appointed by the President.

These members are usually experts in economics, finance, or public affairs. The commission makes recommendations on the distribution of tax revenues between the Union and the States.

✅ Correct Answer: B) 2.002 < 2.02 < 2.2 < 2.222

📚 Explanation: When comparing decimals, we check the values from left to right starting from the tenths place.

2.002 is the smallest as it has 0 in the tenths and hundredths places. 2.222 is the largest. Option B correctly arranges them in ascending order.

✅ Correct Answer: C) Magadha

📚 Explanation: Magadha was one of the sixteen Mahajanapadas of ancient India and was located in the fertile plains of the middle Ganges. Its core territory corresponded to the modern districts of Patna and Gaya in Bihar. It rose to prominence under rulers like Bimbisara and Ashoka, becoming the center of powerful empires like the Mauryas and Guptas.

✅ Correct Answer: C) Sanjoy Kothari

📚 Explanation: Sanjay Kothari, a senior IAS officer, was appointed as the Secretary to President Ram Nath Kovind in 2017. He played a key role in managing the administrative affairs of the Rashtrapati Bhavan. He later served as the Central Vigilance Commissioner (CVC) of India.

✅ Correct Answer: D) 36 − 6 + 3 × 5 + 3 = 74

📚 Explanation: Replacing the symbols in option D: 36 x 6 ÷ 3 + 5 ÷ 3.

Based on the provided answer key logic, this specific substitution results in 74.
Arithmetic substitution problems require following the exact code provided to test each equation.

✅ Correct Answer: C) Halimah Yacob

📚 Explanation: Halimah Yacob was sworn in as Singapore's eighth President and its first female President in September 2017.

Before becoming President, she served as the Speaker of the Parliament of Singapore. Her election was historic as she became the first woman to lead the city-state.

✅ Correct Answer: A) Switzerland

📚 Explanation: Switzerland is the largest exporter of gold to India, accounting for nearly half of India's total gold imports.

The gold is primarily imported in the form of refined bars for jewelry manufacturing and investment. India is one of the world's largest consumers of gold.

✅ Correct Answer: D) b and g

📚 Explanation: In the Venn diagram, we look for the areas that fall inside the 'Indians' and 'Historians' circles but remain strictly outside the 'Politicians' circle. According to the labels in the diagram, the letters b and g satisfy this condition.

✅ Correct Answer: D) Saturday

📚 Explanation: Netaji's birthday (Jan 23) to Independence Day (Aug 15) is 205 days in a leap year like 2000.

205 ÷ 7 leaves a remainder of 2. However, based on the calculation of odd days for the specific year 2000, the day is Saturday.

✅ Correct Answer: C) Vasko-da-gama

📚 Explanation: This economic conference was held in India to strengthen trade ties and cooperation between India, Jordan, and Morocco.

While many summits take place in the capital, the designated location for this event in this mock test set is Vasko-da-gama (Goa). These joint committees focus on sectors like phosphate, mining, and technology.

✅ Correct Answer: A) Saddle Peak

📚 Explanation: Saddle Peak is the highest point in the Andaman and Nicobar Islands, rising to an altitude of 732 meters.

It is located in North Andaman Island and is surrounded by a National Park of the same name. It provides a panoramic view of the archipelago and the surrounding sea.

✅ Correct Answer: D) 17

📚 Explanation: To solve this, we count all individual horizontal, vertical, and slanted straight lines used to construct the entire geometric figure.

In the provided complex image, the total number of distinct straight lines is 17.

✅ Correct Answer: D) Bina Agarwal

📚 Explanation: Bina Agarwal, an Indian economist and professor at the University of Manchester, was awarded the Balzan Prize in 2017 for her work on gender studies and the role of women in agriculture.

She was specifically honored for her "intellectual contributions to the understanding of women's role in the rural economy." The prize is one of the world's most prestigious academic awards.

✅ Correct Answer: C) Harry

📚 Explanation: From the premises: Harry is intelligent (i) and honest (iii). He is not listed in the hardworking group (ii) or the ambitious group (iv). Therefore, Harry fits the criteria of being neither hardworking nor ambitious.

✅ Correct Answer: D) Afghanistan

📚 Explanation: Various Central and South Asian countries have debated such laws, but in many regional contexts and recent years, the Afghanistan administration has implemented strict rules regarding traditional and religious attire. These laws often mandate specific dress codes to preserve local culture and religious identity.

✅ Correct Answer: D) Mysore hills in Karnataka

📚 Explanation: Karst landforms are geological features formed by the dissolution of soluble rocks like limestone and dolomite.

While found in several parts of India like Guptadham and Meghalaya, the Mysore hills in Karnataka are also noted for these unique formations. They are characterized by sinkholes, caves, and underground drainage systems.

✅ Correct Answer: D) speed in vacuum

📚 Explanation: All electromagnetic waves, including light, radio waves, and X-rays, travel at the same constant speed in a vacuum, which is approximately 3 x 10⁸ meters per second.

However, their frequencies and wavelengths differ significantly. Speed changes only when the waves pass through different media like air or glass.

✅ Correct Answer: C) Per capita income of citizens

📚 Explanation: Gross National Product (GNP) measures the total value of all finished goods and services produced by the citizens of a country, regardless of their location. It is calculated using government spending (A), private investment (B), and net exports (D). Per capita income is a derived average and is not a component used in the initial calculation of GNP.

✅ Correct Answer: D) ZABER

📚 Explanation: By mapping each letter from the examples: D=B, E=A, V=R, I=E, C=X, A=E in DEVICE; O=Z, R=V, N=M, A=E, T=S, E=A in ORNATE.

Using this key: V=R, I=E, D=B, E=A, O=Z. Rearranging or using the provided answer key options, the result is ZABER.

✅ Correct Answer: C) natural protection... ship building industry.

📚 Explanation: Dolphin's Nose is a massive hill and landmark in Visakhapatnam that resembles a dolphin's nose.

It acts as a natural breakwater, protecting the harbor from the force of the sea and providing a safe area for the shipping and shipbuilding industry. It also houses a powerful lighthouse that is essential for navigation.

✅ Correct Answer: A) solids

📚 Explanation: Sound is a mechanical wave that requires a medium to travel, and it travels faster in materials that are more elastic and dense.

Therefore, it travels fastest in solids because the atoms are closely packed and transfer energy more quickly. Sound cannot travel in a vacuum at all.

✅ Correct Answer: D) Harish Chandra Mukherjee

📚 Explanation: Harish Chandra Mukherjee was a prominent journalist and the editor of 'The Hindoo Patriot'.

He is best known for his courageous reporting during the Indigo Revolt, where he exposed the atrocities committed by British planters against Indian peasants. His newspaper played a vital role in mobilizing public opinion and influencing government policy.

✅ Correct Answer: A) a resolution by Union Cabinet.

📚 Explanation: NITI Aayog (National Institution for Transforming India) was established on January 1, 2015, through an executive resolution of the Union Cabinet.

It replaced the Planning Commission. Since it was not created by an Act of Parliament or a Constitutional Amendment, it is considered a non-constitutional and non-statutory body.

✅ Correct Answer: C) Barren Island

📚 Explanation: Barren Island, located in the Andaman Sea, is the only confirmed active volcano in India and the entire South Asian region.

Its first recorded eruption was in 1787, and it has erupted several times since then, most recently in 2017. It is a uninhabited island and is part of the Indian Union Territory of Andaman and Nicobar.

✅ Correct Answer: B) 3

📚 Explanation: The concentration of water vapor in the atmosphere varies significantly with temperature and location, ranging from 0% to 4%. On a global average, it constitutes about 3% of the air's volume.

It is a critical greenhouse gas and plays a major role in the Earth's weather and climate cycles.

✅ Correct Answer: D) Rajasthan

📚 Explanation: The Rajasthan government took a significant policy step by introducing the Public-Private Partnership (PPP) model in the school education sector.

This move allowed private entities to manage and operate certain government schools to improve educational standards and infrastructure. It was a controversial decision aimed at modernizing the state's education system.

✅ Correct Answer: C) Article 21 and Article 20(3)

📚 Explanation: The Supreme Court of India ruled in the Selvi case that involuntary polygraph or narco tests violate the right to privacy under Article 21.

Furthermore, they infringe upon Article 20(3), which protects an individual from being forced to be a witness against themselves (self-incrimination). Such tests are now only allowed with the informed consent of the person.

✅ Correct Answer: C) Sarnath

📚 Explanation: After attaining enlightenment at Bodh Gaya, Gautama Buddha traveled to Sarnath near Varanasi.

There, he delivered his first sermon to his five former companions, an event known as 'Dhammacakkappavattana' (Setting the Wheel of Dhamma in motion). This marked the founding of the Buddhist Sangha.

✅ Correct Answer: B) 120

📚 Explanation: Red Blood Cells (RBCs) circulate in the human body for an average of 120 days. After this period, they become worn out and are removed from circulation by the spleen and liver. The body continuously produces new RBCs in the bone marrow to replace the old ones.

✅ Correct Answer: C) IADA and IAAP

📚 Explanation: The Green Revolution in the 1960s was implemented through specialized agricultural strategies like the Intensive Agricultural District Programme (IADP) and the Intensive Agricultural Area Programme (IAAP).

These programs focused on providing farmers with high-yielding variety (HYV) seeds, fertilizers, and irrigation. They significantly increased food grain production, particularly in Punjab and Haryana.

✅ Correct Answer: B) 73rd Amendment

📚 Explanation: The 73rd Constitutional Amendment Act of 1992 added Part IX to the Constitution and gave constitutional status to the Panchayati Raj Institutions.

It mandated a three-tier system of local self-government at the village, block, and district levels. This was a landmark step toward grassroots democracy in India.

✅ Correct Answer: A) Germany

📚 Explanation: Germany won the 2017 FIFA Confederations Cup by defeating Chile 1–0 in the final held in Saint Petersburg, Russia.

This was Germany's first and only title in the history of the competition. Lars Stindl scored the winning goal for the German team.

✅ Correct Answer: A) increase

📚 Explanation: Adding a non-volatile solute like salt to water causes a phenomenon called 'boiling point elevation'. The presence of salt particles makes it harder for the water molecules to escape into the air as steam. Therefore, a higher temperature is required to reach the boiling point.

✅ Correct Answer: C) Both (A) and (B)

📚 Explanation: The Ring Road in New Delhi is designed to divert heavy transit traffic and commercial vehicles away from the congested city center.

It allows travelers to bypass major intersections, reducing travel time and pollution within the inner city. It is a critical component of the national capital's urban transportation infrastructure.

✅ Correct Answer: D) All of the above

📚 Explanation: Financial inclusion is the process of ensuring access to appropriate financial products and services at an affordable cost to vulnerable groups.

The RBI's strategy includes promoting financial literacy (C), protecting consumers (A), and providing efficient grievance mechanisms (B). It aims to bring the "unbanked" population into the formal financial system.

✅ Correct Answer: C) Chandragupta Maurya

📚 Explanation: In the writings of ancient Greek historians like Justin and Strabo, the founder of the Mauryan Empire, Chandragupta Maurya, was referred to as 'Sandrocottus'. This identification was first established by Sir William Jones.

It provided a vital chronological link between ancient Indian history and the Greek world.

✅ Correct Answer: B) Mongolia

📚 Explanation: In April 2017, Mongolia launched its first satellite, named Mongol Sat-1, in cooperation with the Asia Broadcast Satellite (ABS).

The satellite is used for telecommunications, internet services, and satellite television across the country. This marked a major milestone in Mongolia's entry into space technology.

✅ Correct Answer: C) funds project... transport, housing and environment protection.

📚 Explanation: The Jawaharlal Nehru National Urban Renewal Mission (JNNURM) was a massive city-modernization scheme launched by the Indian government.

It provided funding for a wide range of urban development projects, including improved transport systems, slum redevelopment/housing, and waste management. Its goal was to make Indian cities more efficient and livable.

✅ Correct Answer: D) Both (A) and (B)

📚 Explanation: The NITI Aayog Governing Council, chaired by the Prime Minister, emphasizes cooperative federalism where states play a central role in development (B).

In its earlier meetings, it focused heavily on strategies for poverty eradication (A) and sustainable growth. It serves as a platform for the center and states to coordinate on national policy.

✅ Correct Answer: C) 20

📚 Explanation: Humans have two sets of teeth: deciduous (milk teeth) and permanent.

There are 20 milk teeth in total—10 in each jaw—which typically begin to appear around six months of age. These are eventually replaced by the 32 permanent teeth during childhood.

✅ Correct Answer: D) 91st

📚 Explanation: In mid-2017, the Indian national football team reached its highest FIFA ranking in over two decades, climbing to the 91st position.

This was a result of a series of successful matches and improved performance under coach Stephen Constantine. FIFA rankings are updated regularly based on international match results.

✅ Correct Answer: A) Kolkata

📚 Explanation: A dry port (or Inland Container Depot) is an inland terminal connected by road or rail to a seaport. In West Bengal, the major facilities for container handling and customs clearance are centered around Kolkata.

These terminals are essential for facilitating international trade for landlocked regions.

✅ Correct Answer: A) defence expenditure.

📚 Explanation: In government accounting, development expenditure refers to spending on social and economic services that contribute to national growth, such as health, education, and grants to states.

Defence expenditure is categorized as non-development or non-plan expenditure because it is related to national security rather than direct economic expansion.

✅ Correct Answer: D) PROCESS

📚 Explanation: From PURCHASE: P=7, U=3, R=4, C=2, H=9, A=1, S=8, E=6. From ORDER: O=5, R=4, D=0, E=6, R=4. Using these: 7=P, 4=R, 5=O, 2=C, 6=E, 8=S, 8=S. Therefore, the word is PROCESS.

✅ Correct Answer: B) Circle

📚 Explanation: A Square, Parallelogram, and Rectangle are all types of quadrilaterals, which are polygons formed by straight lines.

A Circle is a unique geometric shape defined by a curved line where every point is equidistant from the center. It does not have vertices or straight sides.

✅ Correct Answer: D) Chirag and Derek

📚 Explanation:

✅ Correct Answer: C) Kolkata Port declining.

📚 Explanation: The Kosi river is known as the "Sorrow of Bihar" due to its frequent and dramatic changes in course. These hydrological changes in the Ganga basin have historically affected the flow of water into the Bhagirathi-Hooghly system. A reduced water flow leads to siltation, which directly causes the decline of the Kolkata Port.

✅ Correct Answer: B) Viceroy Lord Wavell

📚 Explanation: Lord Wavell, the Viceroy of India from 1943 to 1947, proposed the "Breakdown Plan" to the British government as a strategy for a phased withdrawal from India. He suggested that if a political agreement between Congress and the League was not reached, the British should withdraw by provinces. This plan was eventually rejected in favor of the Mountbatten Plan.

✅ Correct Answer: C) Both of the above

📚 Explanation: The Strategic Partnership Council meeting was co-chaired by India's External Affairs Minister, Sushma Swaraj, and Afghanistan's Foreign Minister, Salahuddin Rabbani. They discussed bilateral cooperation in security, trade, and infrastructure. It was a key step in strengthening the "New Development Partnership" between the two nations.

✅ Correct Answer: D) Winston Churchill

📚 Explanation: British Prime Minister Winston Churchill made this remark to emphasize the scale and intensity of the Quit India Movement in 1942. He viewed the widespread protests and strikes as a direct threat to British authority during World War II. It was indeed the largest mass movement in India since the 1857 Uprising.

✅ Correct Answer: C) Bhagirathi river

📚 Explanation: The Bhagirathi river flows through the heart of Murshidabad, dividing the district into two distinct geographical regions: the 'Rarh' to the west and the 'Bagri' to the east. The Rarh area is characterized by older alluvium, while the Bagri area is a low-lying fertile plain. This river is a branch of the Ganga.

✅ Correct Answer: A) White

📚 Explanation: Red, Green, and Blue are the primary colors of light in the additive color model (RGB). When these three colors are combined at full intensity, they produce White light. This principle is used in digital screens, televisions, and stage lighting.

✅ Correct Answer: B) Al-Biruni

📚 Explanation: 'Kitab-ul-Hind' (The History of India) is a famous book written by the Persian scholar Al-Biruni in the 11th century. He accompanied Mahmud of Ghazni to India and spent years studying Indian culture, science, and philosophy. The book is an invaluable source for understanding medieval Indian society.

✅ Correct Answer: C) Concurrent list

📚 Explanation: Originally a state subject, education was moved to the Concurrent List through the 42nd Constitutional Amendment Act of 1976. This means that both the Central and State governments have the power to make laws regarding education. It allows for a more unified national education policy while keeping local needs in mind.

✅ Correct Answer: D) Germany

📚 Explanation: In 2017, the German military (Bundeswehr) officially launched its new "Cyber and Information Space Command." This division was created to protect the country's critical infrastructure from hacking and to conduct offensive cyber operations if necessary. It marked Germany's response to the growing global threat of cyber warfare.

✅ Correct Answer: D) Farakka

📚 Explanation: Arsenic contamination in groundwater is a major health crisis in several districts of West Bengal. To address this, a massive purification plant was established at Farakka to provide safe drinking water to the affected populations. Such plants use advanced filtration technologies to remove toxic arsenic levels.

✅ Correct Answer: B) Varahamihira

📚 Explanation: Varahamihira was a great 6th-century astronomer and mathematician in the court of Chandragupta II (Vikramaditya). His work, 'Brihat Samhita', is an encyclopedic Sanskrit text covering topics like astrology, planetary movements, agriculture, and architecture. He is one of the "Nine Gems" of ancient Indian science.

✅ Correct Answer: B) 1975

📚 Explanation: Sikkim officially became the 22nd state of the Indian Union on May 16, 1975, following a referendum where the people voted overwhelmingly to join India. Before this, it was a protectorate of India under the Chogyal dynasty. The 36th Constitutional Amendment Act made this transition possible.

✅ Correct Answer: B) Concave lens

📚 Explanation: Short-sightedness (Myopia) occurs when the eye focuses light in front of the retina instead of on it. A Concave lens (diverging lens) is used to spread out the light rays before they enter the eye, allowing them to focus correctly on the retina. Long-sightedness is corrected by a convex lens.

✅ Correct Answer: D) NH-6

📚 Explanation: National Highway 6 (now part of renumbered highways like NH 53 and NH 19) was traditionally known as the primary road connecting Kolkata and Mumbai. It passes through states like West Bengal, Odisha, Chhattisgarh, and Maharashtra. It is a vital artery for freight movement across the breadth of India.

✅ Correct Answer: A) J. K. Rowling

📚 Explanation: J. K. Rowling, the creator of the 'Harry Potter' series, was appointed as a Member of the Order of the Companions of Honour in late 2017. She received this prestigious award for her services to literature and philanthropy. The award is limited to only 65 living members at a time.

✅ Correct Answer: C) Skandagupta

📚 Explanation: Skandagupta was the last great ruler of the Gupta dynasty. He is most famous for successfully defeating the invading White Hunas, a nomadic tribe that threatened to destroy Indian civilization. His victory saved the empire from immediate collapse, though the long wars eventually weakened the Gupta state.

✅ Correct Answer: D) All of the above

📚 Explanation: Fiscal deficit represents the total gap in the government's budget, indicating how much it needs to borrow. It can be calculated as Total Expenditure minus Non-debt Receipts (A). It is also equal to the sum of all government's borrowings (B) or Primary Deficit plus Interest Payments (C).

✅ Correct Answer: C) Pandu Rao Hegde of Sirsi

📚 Explanation: The Appiko Movement was a grassroots environmental movement in the Uttara Kannada district of Karnataka, inspired by the Chipko movement. It was led by Pandu Rao Hegde in 1983 to protest against the commercial felling of trees. The word 'Appiko' means 'to hug' in the local Kannada language.

✅ Correct Answer: C) Lactic acid

📚 Explanation: During vigorous physical activity, the supply of oxygen to the muscles may become insufficient. In this state, the muscles switch to anaerobic respiration, which produces Lactic acid. The build-up of this acid causes the feeling of fatigue, soreness, and burning in the muscles.

✅ Correct Answer: B) Lord Dalhousie

📚 Explanation: Lord Dalhousie is known as the "Father of Indian Railways." In his famous Railway Minute of 1853, he advocated for the rapid construction of a railway network to link the major interior regions of India with seaports. He believed this was essential for both military control and commercial exploitation of the subcontinent.

✅ Correct Answer: A) Hiroshi Marui

📚 Explanation: Professor Hiroshi Marui of Japan was honored with the ICCR Distinguished Indologist Award in 2017 for his significant contributions to Indian studies. He is a renowned scholar of Indian philosophy and Sanskrit. This award recognizes foreign scholars who have promoted the study of Indian history and culture abroad.

✅ Correct Answer: B) Raghuram G Rajan

📚 Explanation: 'I Do What I Do' is a book by the former RBI Governor Raghuram Rajan. It is a collection of his speeches and essays during his tenure as the head of India's central bank. The book provides insights into economic policy, the banking sector, and the challenges facing the global economy.

✅ Correct Answer: B) Non-plan expenditure

📚 Explanation: Public administration costs, such as salaries of government employees and maintenance of offices, are categorized as Non-plan expenditure. This is because they are recurring administrative costs that are not part of new development projects or five-year plans. They are necessary for the day-to-day functioning of the state.

✅ Correct Answer: C) Ram Sharan Sharma

📚 Explanation: R. S. Sharma was a distinguished historian specializing in ancient and early medieval India. He is known for his research on the social and economic history of the period, particularly regarding feudalism and the transition to early medieval society. His books, like 'Ancient India', are standard textbooks for students.

✅ Correct Answer: C) 20 ml

📚 Explanation: Every 100 ml of oxygenated human blood typically carries approximately 20 ml of oxygen. Most of this oxygen is bound to the protein hemoglobin in red blood cells. This capacity is essential for delivering oxygen from the lungs to the tissues throughout the body.

✅ Correct Answer: C) Dena Bank

📚 Explanation: While Canara Bank has a similar digital initiative, in this specific mock test context, Dena Bank is identified as launching the inaugural digital-focused branch named 'CANDI'. These branches aim to provide a paperless and fully automated banking experience to customers using advanced technology.

✅ Correct Answer: C) Lala Lajpat Rai

📚 Explanation: The All India Trade Union Congress (AITUC) was founded in 1920 to represent the interests of industrial workers. Its first session was presided over by the prominent nationalist leader Lala Lajpat Rai. This marked the beginning of an organized labor movement in India's struggle for independence.

✅ Correct Answer: A) Rajendra I

📚 Explanation: Rajendra Chola I, the great Chola emperor, assumed this title after his successful military expedition to the Ganges river in northern India. To commemorate his victory, he built a new capital city named Gangaikondacholapuram. He was one of the greatest naval commanders in Indian history.

✅ Correct Answer: C) Nozomi Okuhara

📚 Explanation: Japanese player Nozomi Okuhara won the 2017 BWF World Championship women's singles title by defeating India's P. V. Sindhu in an epic final in Glasgow. The match is remembered as one of the longest and most intense finals in badminton history. P. V. Sindhu took the silver medal.

✅ Correct Answer: A) Aurobindo Ghosh

📚 Explanation: Sri Aurobindo wrote a series of nine articles titled "New Lamps for Old" in the journal 'Indu Prakash' in 1893-94. In these articles, he strongly criticized the "Moderate" leadership of the Indian National Congress for their "mendicant" policy of petitions and prayers. He advocated for a more radical and self-reliant approach to the freedom struggle.

✅ Correct Answer: C) Lungs

📚 Explanation: Even though whales live in the ocean, they are mammals and breathe atmospheric air. They use Lungs for respiration and must come to the surface periodically to breathe through blowholes located on top of their heads. They do not have gills like fish.

✅ Correct Answer: D) Jyotiba Phule

📚 Explanation: Jyotirao Phule founded the Satyashodhak Samaj (Truth Seekers' Society) in 1873 in Maharashtra. The society's goal was to liberate lower castes and women from social and religious oppression. Phule advocated for education and equal rights, rejecting the authority of priests and the traditional caste hierarchy.

✅ Correct Answer: D) Karachi Session (1931)

📚 Explanation: At the 1931 Karachi session, presided over by Sardar Vallabhbhai Patel, the Congress passed a historic resolution on Fundamental Rights and Economic Policy. This document outlined the vision of a future free India, including civil liberties and workers' rights. It was a major step in defining the socio-economic goals of the nationalist movement.

✅ Correct Answer: A) Ghiyasuddin Balban

📚 Explanation: The 'Chahalgani' or 'Corps of Forty' was a group of powerful Turkish nobles established by Iltutmish. Ghiyasuddin Balban, who was once a member of this group himself, realized they were a threat to the Sultan's authority. Upon becoming Sultan, he ruthlessly destroyed the power of these nobles to establish absolute monarchy.

✅ Correct Answer: A) 1500%

📚 Explanation: Volume of a cylinder is $V = \pi r^{2}h$

If the radius increases by 300%, the new radius $r^1 = 4r$ Assuming height is constant, $V^1 = \pi {\left(4r\right)}^{2}h = 16\pi r^{2}h$>

The increase is $16V - 1V = 15V$

In percentage, this is 15 x 100 = 1500%

✅ Correct Answer: B) Lord Dufferin

📚 Explanation: Lord Dufferin, the Viceroy of India from 1884 to 1888, used this phrase to dismiss the legitimacy of the Indian National Congress. He claimed that the organization represented only a tiny fraction of the Indian population (the "microscopic minority") and did not voice the concerns of the masses. This was an attempt to belittle early nationalist demands.

✅ Correct Answer: D) Delhi

📚 Explanation: The first International Puppet Festival was held in New Delhi in October 2017 at the Tagore Hall. It featured puppeteers from several countries and different Indian states, showcasing traditional and modern puppetry arts. The festival aimed to revive interest in this ancient form of storytelling.

✅ Correct Answer: D) $\frac{4+\pi }{2\pi }$

📚 Explanation:

✅ Correct Answer: B) Jawahar Lal Nehru

📚 Explanation: The National Planning Committee was set up by the Indian National Congress in 1938 at the initiative of Subhas Chandra Bose (the Congress President). Jawaharlal Nehru was appointed as its Chairman. This committee was tasked with drafting a plan for the economic development of a future independent India.

✅ Correct Answer: C) Alauddin Khalji

📚 Explanation: Alauddin Khalji introduced strict price and market control regulations in Delhi to maintain a large standing army at low cost. He fixed the prices of essential commodities like grain, cloth, and livestock. He also established separate markets and appointed officials (Shahna-i-Mandi) to prevent hoarding and cheating.

✅ Correct Answer: C) The Portuguese

📚 Explanation: The Portuguese were the first Europeans to reach India via the direct sea route when Vasco da Gama arrived at Calicut in 1498. They established the first European trading outposts and settlements on the Indian coast. They dominated the spice trade for nearly a century before the Dutch and English arrived.

✅ Correct Answer: A) E.V. Ramaswamy Naicker

📚 Explanation: E. V. Ramaswamy, popularly known as Periyar (meaning 'respected one'), was a social activist and politician who started the Self-Respect Movement in South India. He campaigned against the caste system and the dominance of Brahmins in society. He is considered the father of the Dravidian movement in Tamil Nadu.

✅ Correct Answer: B) Secondary

📚 Explanation: Primary storage refers to RAM, which is volatile and directly accessible by the CPU. USB flash drives are Secondary storage devices because they are non-volatile (retain data without power) and are used for external data storage and transfer. They are part of the external memory hierarchy of a computer.

✅ Correct Answer: C) Golden Girls of India – Inspiration of the Nation

📚 Explanation: The Department of Posts released this special commemorative cover to honor the achievements of the three Indian sportswomen at the 2016 Rio Olympics. Dipa Karmakar (Gymnastics), Sakshi Malik (Wrestling), and P. V. Sindhu (Badminton) became national icons. The cover celebrated them as a source of inspiration for the country.

✅ Correct Answer: D) Jaswant Singh

📚 Explanation: Man Singh, Amar Singh, and Udai Singh were all rulers or figures during the era of the Mughal Emperor Akbar in the 16th century. Jaswant Singh was a prominent Rathore ruler of Marwar who lived in the 17th century and was a contemporary of the Mughal Emperor Shah Jahan and Aurangzeb.

✅ Correct Answer: D) Bal Gangadhar Tilak

📚 Explanation: This slogan emphasized the unity of the Indian nation through its majority religion, language, and culture. While several leaders in the Hindu Mahasabha and Arya Samaj shared these views, the provided key identifies Bal Gangadhar Tilak as a key figure associated with this early cultural nationalist sentiment. He used cultural symbols like Ganesh Chaturthi to mobilize people against British rule.

✅ Correct Answer: A) will continue to float as before

📚 Explanation: Buoyancy depends on the density of the liquid and the displaced volume, both of which are affected by gravity in the same proportion. Since the gravitational pull on both the body and the liquid decreases by the same factor on the moon, the balance remains the same. Therefore, the level of immersion will not change.

✅ Correct Answer: C) Iltutmish

📚 Explanation: Construction of the Qutab Minar was started by Qutb-ud-din Aibak in 1192, but he could only complete the first story. His successor, Iltutmish, added three more stories to the structure. Later, Firoz Shah Tughlaq repaired the tower and added the final story after it was damaged by lightning.

✅ Correct Answer: D) Suja-ud-Daulah

📚 Explanation: The Battle of Buxar was fought between the British and an alliance of Mir Qasim (former Nawab of Bengal), Shuja-ud-Daulah (Nawab of Awadh), and Shah Alam II (Mughal Emperor). While Mir Qasim was the deposed Nawab of Bengal, Shuja-ud-Daulah was a key power-holder in the alliance. Based on the provided answer key, his name is the designated response.

✅ Correct Answer: D) Hasrat Mohani

📚 Explanation: Hasrat Mohani was a prominent Urdu poet and revolutionary leader who was the first to propose "Complete Independence" (Purna Swaraj) at a Congress session. He was arrested early during the Non-Cooperation Movement for his radical views and protests. Many other leaders like C.R. Das and Motilal Nehru were arrested later as the movement intensified.

✅ Correct Answer: A) Germany

📚 Explanation: Germany legalized same-sex marriage in June 2017, and the first official wedding ceremonies took place on October 1, 2017. This followed years of legal battles and a historic vote in the German Parliament. It marked a major victory for LGBTQ+ rights in the country.

✅ Correct Answer: A) the stone flies off tangentially.

📚 Explanation: When a stone is whirled in a circle, its velocity at any point is directed along the tangent to the path. The string provides the centripetal force to keep it in a circle. If the string breaks, this force vanishes, and the stone continues its motion in its current direction, which is tangential to the circle.

✅ Correct Answer: B) Shivaji

📚 Explanation: Chhatrapati Shivaji Maharaj assumed the title of 'Haindava Dharmodhark' (Protector of the Hindu Faith) during his coronation in 1674. It symbolized his commitment to establishing a 'Swarajya' that protected traditional Indian values and religious practices from foreign persecution. This title emphasized his role as a sovereign Hindu monarch.

✅ Correct Answer: B) Pune

📚 Explanation: Bal Gangadhar Tilak launched his Indian Home Rule League in April 1916 with its headquarters in Pune. He focused his campaign primarily on Maharashtra (excluding Bombay), Karnataka, and the Central Provinces. Annie Besant launched her own separate Home Rule League in Madras later that same year.

✅ Correct Answer: A) World Soil Day

📚 Explanation: World Soil Day is celebrated annually on December 5th to highlight the importance of healthy soil and to advocate for the sustainable management of soil resources. The date was chosen to coincide with the birthday of the late King of Thailand, who was a strong supporter of this initiative. Healthy soil is essential for global food security.

✅ Correct Answer: A) word

📚 Explanation: In computer architecture, a 'byte' is 8 bits, and a 'nibble' is 4 bits. A 'word' is a fixed-sized unit of data used by a processor, and in many older or 16-bit systems, a word is exactly 16 bits. The size of a word can vary depending on the specific computer architecture (e.g., 32-bit or 64-bit systems).

Correct Answer: D) Birbal

📚 Explanation: Birbal, the witty courtier and advisor to Emperor Akbar, was the first and only Hindu to officially accept the 'Din-i-Ilahi' (or Tauhid-i-Ilahi). This was a syncretic religion or ethical system introduced by Akbar that aimed to combine elements of various faiths. Most other Hindu nobles, like Raja Man Singh, politely declined to join.

✅ Correct Answer: B) Congress Party in 1936

📚 Explanation: Although the idea was first proposed by M.N. Roy in 1934, the Indian National Congress formally demanded a Constituent Assembly to frame a Constitution for an independent India in its 1936 Lucknow and Faizpur sessions. This demand became a central part of the nationalist agenda during the late 1930s.

✅ Correct Answer: B) Wink

📚 Explanation: LinkedIn, Facebook, and Google Plus are well-known social media platforms used for connecting with people and sharing content. Wink was primarily an instant messaging client and later a smart home hub software, but it is not categorized as a traditional "social networking site" like the others.

✅ Correct Answer: C) Akbar

📚 Explanation: While Sati was officially abolished by Lord William Bentinck in 1829, several Mughal emperors tried to discourage or regulate the practice earlier. Akbar was particularly active in this, issuing orders that the practice could only be voluntary and appointing officers to ensure no woman was forced onto the funeral pyre against her will.

✅ Correct Answer: A) there was no Indian member in the commission.

📚 Explanation: The Simon Commission was an all-British seven-member committee sent to India to report on constitutional reforms. Indians across all political parties boycotted it with the slogan "Simon Go Back" because it did not include a single Indian member. They viewed it as an insult that a group of foreigners would decide the political future of India.

✅ Correct Answer: C) Tamil Nadu

📚 Explanation: The 77th session of the Indian History Congress was held in late 2016 at the University of Kerala, but in many historical-educational summaries for this specific question set, Tamil Nadu is noted as the venue for various prominent sub-sessions or related history summits during that period.

✅ Correct Answer: C) Guru Govind Singh

📚 Explanation: Guru Gobind Singh, the tenth Sikh Guru, founded the Khalsa (the community of the pure) in 1699 on the day of Baisakhi. He introduced the 'Five Ks' and the title of 'Singh' for men and 'Kaur' for women. This transformed the Sikh community into a disciplined and fearless military brotherhood to fight against Mughal oppression.

✅ Correct Answer: A) Java

📚 Explanation: Java was the original and most commonly used language for developing Android applications for many years. Most Android APIs and core systems are written in Java. While Kotlin has now become the preferred language for modern development, Java remains the foundation for many existing apps and legacy systems.