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  1. An oil drop spreads over water because

    2. A.

     Oil is lighter than water
    B.

     Oil is more viscous
    C.

     Oil does not mix with water
    D.

     water has a higher surface tension

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  2. Rotameter is used to measure

    3. A.

     Vortex flow
    B.

     Density of fluids
    C.

     Velocity of fluid in pipes
    D.

     Flow of fluids

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  3. Siphon will fail to work if

    4. A.

     The level of the liquid in the two vessels are at the same height
    B.

     The temperature of the liquids in the two vessels are the same
    C.

     The densities of the liquid in the two vessels are equal
    D.

     Both its limbs are of unequal length

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  4. Sprayer functions on

    5. A.

     Bernouli's principle
    B.

     Archemede's principle
    C.

     Pascal's law
    D.

     Floatation principle

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  5. A drop of liquid assumes spherical shape because:

    6. A.

     Intermolecular forces are strong in liquids
    B.

     A sphere has the least surface area for a given volume
    C.

     A sphere has the largest surface area for a given volume
    D.

     Inter molecular forces are weak in liquids

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  6. A tank filled partially with a liquid is subjected to a uniform horizontal acceleration. Which of the following is true for the surface of liquid in the tank?

    7. A.

     The liquid surface falls down on the direction of motion and rises up on the back side of the tank
    B.

     The liquid surface falls down only at the center of the tank
    C.

     The surface of the liquid remains horizontal
    D.

     None

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  7. The lift of an aeroplane is caused by

    8. A.

     Law of gravitation
    B.

     Theorem of continuity
    C.

     Pascel's law
    D.

     Bernouli's theorem

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  8. Which of the following instrument is used to measure Soil Water Tension?

    9. A.

     Photometer
    B.

     Pyrometer
    C.

     Psychrometer
    D.

     Tensiometer

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  9. Blotting paper absorbs ink due to

    10. A.

     Capillary action phenomenon
    B.

     Diffusion of ink through the blotting
    C.

     Siphon action
    D.

     Viscosity of ink

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  10. Name the process by which bubbles from liquid are formed?

    11. A.

     Effervescence
    B.

     Surface Tension
    C.

     Surface Energy
    D.

     Degasification

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