Practice test

Mechanical properties of matter - Test Set 4

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    The pressure exerted by a 760 mm column of mercury at 0°C is known as:
    1. 1 pascal
    2. 1 atm
    3. 1 bar
    4. 1 poise
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  2. Question 2

    Which one of the following is not a result of surface tension?
    1. Nearly spherical drop of rain
    2. Capillary rise
    3. Removal of dirt by soap or detergent
    4. Flow of a liquid
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  3. Question 3

    Consider the following statements: If there were no phenomenon of capillarity:
    (I) It would be difficult to use a kerosene lamp
    (II) One would not be able to use a straw to consume a soft drink
    (III) The blotting paper would fail to function
    (IV) The big trees that we see around would not have grown on the Earth

    Which of the statements given above are correct?
    1. I, II and III Only
    2. I, III and IV Only
    3. II and IV Only
    4. I, II, III and IV
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  4. Question 4

    Which one of the following is not a result of surface tension?
    1. Nearly spherical drop of rain
    2. Capillary rise
    3. Removal of dirt by soap or detergent
    4. Flow of a liquid
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  5. Question 5

    Buoyancy is a/an:
    1. Downward pressure
    2. Upward pressure
    3. Upward force
    4. None
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  6. Question 6

    A person stands on his two feet over a surface and experiences a pressure
    P. Now the person stands on only one foot. He would experience a pressure of magnitude:
    1. 4 P
    2. 6P
    3. 10P
    4. 2P
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  7. Question 7

    Two substances of densities P1 and P2 are mixed in equal volume and their relative density is 4. When they are mixed in equal masses, relative density is 3. The values of P1 And P2 respectively are:
    1. 6,9
    2. 6,2
    3. 10,4
    4. 7,3
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  8. Question 8

    Calculate the pressure (in Pa) if a thrust of 1000 N is applied to an area of 5 m².
    1. 500
    2. 600
    3. 200
    4. 100
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  9. Question 9

    When pressure is applied to a fluid, the pressure change is fluid without any loss. Which the following laws explains this phenomenon?
    1. Bernoulli's Law
    2. Pascal's Law
    3. Hooke's Law
    4. Avogadro's Law
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  10. Question 10

    A boat full of iron nails is floating on water in a lake. When the iron nails are removed, the water level:
    1. Rises
    2. Cannot be determined
    3. Remains constant
    4. Falls
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  11. Question 11

    All objects experience a buoyancy when they are immersed in a fluid. Buoyancy is:
    1. An upward force
    2. An upward pressure
    3. A downward pressure
    4. A downward force
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  12. Question 12

    Force of attraction between molecules of the same substance is called ______
    1. Adhesive force
    2. Cohesive force
    3. Surface tension
    4. Viscosity
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  13. Question 13

    With what do you divide thrust in a liquid to obtain the value of pressure?
    1. Volume
    2. Area
    3. Mass
    4. All of these
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  14. Question 14

    The density of water is 1 g/cc. This is strictly valid at:
    1. 0°C
    2. 25°C
    3. 4°C
    4. 100°C
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  15. Question 15

    Specific gravity is defined as the ratio of:
    1. Density of the substance to the density of water
    2. Density of the substance to the density of water at 0°C
    3. Density of water at 4°C to the density of the substance
    4. Density of the substance to the density of water at 4°C
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  16. Question 16

    A man standing close to the platform at a railway station experiences pulling force towards a fast moving train because of:
    1. Gravitational force between train and man
    2. illusion of the man
    3. The centripetal force
    4. Pressure difference due to fast moving air in between
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  17. Question 17

    Which of the following is not a characteristic of a solid?
    1. High rigidity
    2. Regular shape
    3. High density
    4. High compressibility
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  18. Question 18

    If density of oxygen is 16 times that of hydrogen. What will be their corresponding ratio of velocity of sound?
    1. 2 : 1
    2. 4 : 1
    3. 1 : 4
    4. 0
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  19. Question 19

    Soap bubble attains spherical shape due to:
    1. Inertia
    2. Pressure
    3. Surface tension
    4. Viscosity
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  20. Question 20

    When water freezes its density:
    1. Decreases
    2. Becomes Zero
    3. Remains constant
    4. Increases
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