Practice test

Wbcs preliminary (general science) sectional test – 11 - 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

  1. Question 1

    Which law of motion is also known as the 'Law of Inertia'?
    1. Newton's First Law
    2. Newton's Second Law
    3. Newton's Third Law
    4. Law of Gravitation
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  2. Question 2

    What is the chemical name of Bleaching Powder?
    1. Calcium Sulphate
    2. Calcium Oxychloride
    3. Sodium Carbonate
    4. Calcium Hydroxide
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  3. Question 3

    Which of the following is present in a plant cell but absent in an animal cell?
    1. Nucleus
    2. Mitochondria
    3. Cell Wall
    4. Cytoplasm
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  4. Question 4

    Which of the following is considered the primary greenhouse gas responsible for global warming?
    1. Oxygen
    2. Nitrogen
    3. Carbon Dioxide
    4. Hydrogen
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  5. Question 5

    Which part of a computer is commonly referred to as its 'Brain'?
    1. Monitor
    2. Keyboard
    3. CPU
    4. Hard Disk
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  6. Question 6

    Sound waves cannot travel through which of the following media?
    1. Water
    2. Steel
    3. Air
    4. Vacuum
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  7. Question 7

    Which is the hardest naturally occurring substance on Earth?
    1. Gold
    2. Iron
    3. Diamond
    4. Platinum
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  8. Question 8

    Which instrument is used to measure human blood pressure?
    1. Barometer
    2. Sphygmomanometer
    3. Thermometer
    4. Stethoscope
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  9. Question 9

    Which layer of the atmosphere is closest to the Earth's surface?
    1. Stratosphere
    2. Mesosphere
    3. Troposphere
    4. Ionosphere
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  10. Question 10

    What is the full form of 'HTTP' in web addresses?
    1. Hyperlink Text Transfer Protocol
    2. Hypertext Transfer Protocol
    3. High Transfer Text Protocol
    4. Hypertext Total Protocol
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  11. Question 11

    A solar cell converts solar energy directly into which form of energy?
    1. Chemical Energy
    2. Heat Energy
    3. Electrical Energy
    4. Nuclear Energy
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  12. Question 12

    What is the chemical name of common table salt?
    1. Sodium Bicarbonate
    2. Sodium Chloride
    3. Potassium Chloride
    4. Calcium Chloride
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  13. Question 13

    How many bones are typically found in an adult human skeleton?
    1. 206
    2. 250
    3. 300
    4. 180
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  14. Question 14

    On which date is 'World Environment Day' celebrated every year?
    1. April 22
    2. June 5
    3. September 16
    4. December 1
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  15. Question 15

    Which type of computer memory is 'ROM' considered to be?
    1. Volatile Memory
    2. Temporary Memory
    3. Non-volatile Memory
    4. External Memory
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  16. Question 16

    The bending of light when it passes from one transparent medium to another is called?
    1. Reflection
    2. Refraction
    3. Diffraction
    4. Polarization
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  17. Question 17

    What is the average pH value of healthy human blood?
    1. 6.0
    2. 7.0
    3. 7.4
    4. 8.5
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  18. Question 18

    Which disease is caused by the deficiency of Vitamin B1 (Thiamine)?
    1. Scurvy
    2. Rickets
    3. Beriberi
    4. Anaemia
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  19. Question 19

    What is the SI unit of Force?
    1. Joule
    2. Pascal
    3. Newton
    4. Watt
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  20. Question 20

    The process of a solid changing directly into a gas without becoming a liquid is called?
    1. Evaporation
    2. Condensation
    3. Sublimation
    4. Fusion
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  21. Question 21

    Which of the following is the structural and functional unit of the human nervous system?
    1. Nephron
    2. Neuron
    3. Alveoli
    4. Platelet
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  22. Question 22

    In an ecosystem, green plants are classified as which of the following?
    1. Consumers
    2. Decomposers
    3. Producers
    4. Parasites
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  23. Question 23

    In computer data units, 1 Megabyte (MB) is equal to how many Kilobytes (KB)?
    1. 100 KB
    2. 500 KB
    3. 1000 KB
    4. 1024 KB
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  24. Question 24

    Which type of lens is used to correct the vision defect known as 'Hypermetropia' (Farsightedness)?
    1. Concave Lens
    2. Convex Lens
    3. Cylindrical Lens
    4. Bifocal Lens
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  25. Question 25

    Which metal is used for making the filament of an incandescent electric bulb?
    1. Copper
    2. Aluminium
    3. Tungsten
    4. Silver
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