Practice test
Wbcs preliminary (general science) sectional test – 14 - Test Set 1
Review 25 exam-focused questions with detailed explanations, then start the interactive test when you are ready.
25 questions
Questions and explanations
- Which of the following colors of white light undergoes the maximum deviation when passed through a glass prism?
Question 1
- Red
- Yellow
- Violet
- Green
View explanation
Sign In to See Explanations. Sign Up Here
- What is the chemical name of the substance commonly known as 'Plaster of Paris'?
Question 2
- Calcium Sulfate Hemihydrate
- Calcium Carbonate
- Calcium Sulfate Dihydrate
- Magnesium Sulfate
View explanation
Sign In to See Explanations. Sign Up Here
- Which part of the human brain is primarily responsible for maintaining posture, equilibrium, and muscle tone?
Question 3
- Cerebrum
- Medulla Oblongata
- Cerebellum
- Hypothalamus
View explanation
Sign In to See Explanations. Sign Up Here
- Which of the following is an application of 'Total Internal Reflection'?
Question 4
- Formation of a rainbow
- Working of optical fibers
- Blue color of the sky
- Magnification by a lens
View explanation
Sign In to See Explanations. Sign Up Here
- Which gas is released when 'Baking Soda' reacts with dilute hydrochloric acid?
Question 5
- Hydrogen
- Oxygen
- Carbon Dioxide
- Nitrogen
View explanation
Sign In to See Explanations. Sign Up Here
- Which among the following is the 'Universal Recipient' blood group in the ABO system?
Question 6
- O Positive
- AB Positive
- A Negative
- B Positive
View explanation
Sign In to See Explanations. Sign Up Here
- The working principle of a 'Transformer' is based on which of the following?
Question 7
- Self Induction
- Mutual Induction
- Eddy Currents
- Thermionic Emission
View explanation
Sign In to See Explanations. Sign Up Here
- Which of the following acids is present in the sting of an ant, causing a burning sensation?
Question 8
- Tartaric Acid
- Oxalic Acid
- Methanoic Acid
- Citric Acid
View explanation
Sign In to See Explanations. Sign Up Here
- Which biological process is responsible for the 'Leavening' of bread using Yeast?
Question 9
- Photosynthesis
- Aerobic Respiration
- Fermentation
- Transpiration
View explanation
Sign In to See Explanations. Sign Up Here
- What is the unit of 'Power of a Lens' in the International System of Units (SI)?
Question 10
- Meter
- Dioptre
- Watt
- Candela
View explanation
Sign In to See Explanations. Sign Up Here
- 'Aqua Regia' is a highly corrosive mixture prepared by mixing concentrated Hydrochloric acid and concentrated Nitric acid in what ratio?
Question 11
- 1:3
- 3:1
- 2:1
- 1:1
View explanation
Sign In to See Explanations. Sign Up Here
- Which vitamin is also known as 'Ascorbic Acid' and is vital for the health of skin and gums?
Question 12
- Vitamin A
- Vitamin B12
- Vitamin C
- Vitamin D
View explanation
Sign In to See Explanations. Sign Up Here
- Which type of mirror is used as a 'Rear-view mirror' in vehicles because it provides a wider field of view?
Question 13
- Plane Mirror
- Concave Mirror
- Convex Mirror
- Parabolic Mirror
View explanation
Sign In to See Explanations. Sign Up Here
- Which metal is extracted from the ore called 'Bauxite'?
Question 14
- Iron
- Copper
- Aluminium
- Zinc
View explanation
Sign In to See Explanations. Sign Up Here
- Which of the following diseases is caused by a 'Protozoa' and transmitted by the Anopheles mosquito?
Question 15
- Dengue
- Malaria
- Cholera
- Tuberculosis
View explanation
Sign In to See Explanations. Sign Up Here
- What is the frequency of the Alternating Current (AC) supplied for domestic use in India?
Question 16
- 60 Hz
- 100 Hz
- 50 Hz
- 220 Hz
View explanation
Sign In to See Explanations. Sign Up Here
- Which of the following is used in 'Dry Ice' because it sublimes directly from solid to gas?
Question 17
- Solid Nitrogen
- Solid Oxygen
- Solid Carbon Dioxide
- Solid Hydrogen
View explanation
Sign In to See Explanations. Sign Up Here
- Which hormone is produced by the 'Islets of Langerhans' in the pancreas to regulate blood glucose levels?
Question 18
- Adrenaline
- Thyroxine
- Insulin
- Estrogen
View explanation
Sign In to See Explanations. Sign Up Here
- Which phenomenon explains why a person standing on a railway platform hears a higher pitch as a train whistles and approaches them?
Question 19
- Resonance
- Doppler Effect
- Interference
- Diffraction
View explanation
Sign In to See Explanations. Sign Up Here
- Which of the following is the main constituent of 'LPG' (Liquefied Petroleum Gas) used in households?
Question 20
- Methane
- Butane
- Ethane
- Acetylene
View explanation
Sign In to See Explanations. Sign Up Here
- In a computer, what does the acronym 'URL' stand for?
Question 21
- United Resource Link
- Uniform Resource Locator
- Universal Radio Line
- User Remote Link
View explanation
Sign In to See Explanations. Sign Up Here
- Which of the following is the 'Master Gland' of the human endocrine system?
Question 22
- Adrenal Gland
- Thyroid Gland
- Pituitary Gland
- Thymus Gland
View explanation
Sign In to See Explanations. Sign Up Here
- 'Minamata disease' is a neurological syndrome caused by the severe poisoning of which heavy metal?
Question 23
- Lead
- Cadmium
- Mercury
- Arsenic
View explanation
Sign In to See Explanations. Sign Up Here
- Which law states that 'The pressure exerted by a fluid at rest is transmitted equally in all directions'?
Question 24
- Boyle's Law
- Pascal's Law
- Newton's Law
- Hooke's Law
View explanation
Sign In to See Explanations. Sign Up Here
- What is the primary function of 'Xylem' tissue in higher plants?
Question 25
- Translocation of food
- Conduction of water and minerals
- Photosynthesis
- Storage of waste products
View explanation
Sign In to See Explanations. Sign Up Here