Mercury does not wet glass. This is due to property of liquid known as__________________?

Related Mcqs:

1. If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water________________?

   A. 51 cm
   B. 50 cm
   C. 52 cm
   D. 52.2 cm
   E. 51.7 cm

2. A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ?

   A. 0.5
   B. 0.4
   C. 0.515
   D. 0.5
   E. none of the above

3. A liquid would wet the solid, if adhesion forces as compared to cohesion forces are________________?

   A. less
   B. more
   C. equal
   D. less at low temperature and more at high temperature
   E. there is no such criterion

4. Ratio of inertia force to elastic force is known as__________________?

   A. Mach number
   B. Froude number
   C. Reynold’s number
   D. Weber’s number
   E. none of the above

5. The region between the separation streamline and the boundary surface of the solid body is known as__________________?

   A. wake
   B. drag
   C. lift
   D. boundary layer
   E. aerofoil section

6. The flow in which the particles of a fluid attain such velocities that vary from point to point in magnitude and direction as well as from instant to instant, is known as__________________?

   A. one dimensional flow
   B. uniform flow
   C. steady flow
   D. turbulent flow
   E. streamline flow

7. 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

8. 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

9. The property by virtue of which a liquid opposes relative motion between its different layers is called_________________?

   A. surface tension
   B. co-efficient of viscosity
   C. viscosity
   D. osmosis
   E. cohesion

10. The rise or depression of liquid in a tube due to surface tensionwim 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