Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the______________?

Related Mcqs:

1. Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the_______________?

   A. force of adhesion
   B. force of cohesion
   C. force of friction
   D. force of diffusion
   E. none of die above

2. Free surface of a liquid tends to contract to the smallest possible area due to force of _________________?

   A. surface tension
   B. viscosity
   C. friction
   D. cohesion
   E. adhesion

3. The tendency of a liquid surface to contract is due to the following property_________________?

   A. cohesion
   B. adhesion
   C. viscosity
   D. surface tension
   E. elasticity

4. A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at vater surface. The hydrostatic force on square surface is __________________?

   A. 9,000 kg
   B. 13,500 kg
   C. 18,000 kg
   D. 27,000 kg
   E. 30,000 kg

5. The rise or depression of liquid in a tube due to surface tension wim increase in size of tube will_______________?

   A. increase
   B. remain unaffected
   C. may increase or decrease depending on the characteristics of liquid
   D. decrease
   E. unpredictable

6. An open vessel of water is accelerated up an inclined plane. The free water surface will___________________?

   A. be horizontal
   B. make an angle in direction of inclination of inclined plane
   C. make an angle in opposite direction to inclination of inclined plane
   D. any one of above is possible
   E. none of the above

7. Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be ___________________?

   A. 1000 kg
   B. 4000 kg
   C. 2000 kg
   D. 8000 kg
   E. 16000 kg

8. The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to________________?

   A. 1 Pa
   B. 91Pa
   C. 981 Pa
   D. 9810 Pa
   E. 98,100 Pa

9. A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm2 and a volume of 0.039 m3 at 150 kg/cm2. The bulk modulus of elasticity of liquid is _________________?

   A. 400 kg/cm2
   B. 4000 kg/cm2
   C. 40 x 105 kg/cm2
   D. 40 x 106 kg/cm2
   E. none of the above

10. For a body floating in a liquid the normal pressure exerted by the liquid acts at _________________?

    A. bottom surface of the body
    B. e.g. of the body
    C. metacentre
    D. all points on the surface of the body
    E. all of the above