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

Related Mcqs:

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

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

2. 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

3. 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

4. A wet vapour can be completely specified by__________________?

   A. pressure only
   B. temperature only
   C. dryness fraction only
   D. specific volume only
   E. pressure and dryness fraction

5. Heating wet steam at constant temperature is heating it at constant_________________?

   A. volume
   B. pressure
   C. entropy
   D. enthalpy
   E. none of the above

6. A packaged boiler is one in which various parts like firing equipment, fans, feed pumps and automatic controls are________________?

   A. supplied by same manufacturer loose and assembled at site
   B. supplied mounted on a single base
   C. purchased from several parties and packed together at site
   D. packaged boiler does not exist
   E. none of the above

7. 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

8. The two important forces for a floating body are__________________?

   A. buoyancy, gravity
   B. buoyancy, pressure
   C. buoyancy, inertial
   D. inertial, gravity
   E. gravity, pressure

9. The molecules in a solid move______________?

   A. in a random manner
   B. in a haphazard way
   C. in circular motion
   D. back and forth like tiny pendulums
   E. do not move

10. Which of the following solid fuel has high caloric value : ___________?

    A. Wood
    B. Peat
    C. Bituminous coal
    D. Anthracite coal

    Submitted by: Faheem Zaman Dhaunroo