A. 1 mm
B. 5 mm
C. 10 mm
D. 20 mm
E. 30 mm
Related Mcqs:
- The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is ap-proximately_______________?
A. 1 mm
B. 5 mm
C. 10 mm
D. 20 mm
E. 30 mm - If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be_________________?
A. higher than the surface of liquid
B. the same as the surface of liquid
C. lower than the surface of liquid
D. unpredictable
E. none of the above - 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 - In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle 9. Sensitivity of inclined tube to sensitivity of U-tube is equal to_________________?
A. sin 9
B. sin 9
C. casS
D. cos 9
E. tan 9 - Capillary action is due to the__________________?
A. surface tension
B. cohesion of the liquid
C. adhesion of the liquid molecules and the molecules on the surface of a solid
D. all of the above
E. none of the above - 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 - The atmospheric pressure with rise in altitude decreases____________________?
A. linearly
B. first slowly and then steeply
C. first steeply and then gradually
D. unpredictable
E. none of the above - Dynamic viscosity of most of the liquids with rise in temperature____________________?
A. increases
B. decreases
A. remains unaffected
D. unpredictable
E. none of the above - Dynamic viscosity of most of the gases with rise in temperature___________________?
A. increases
B. decreases
C. remains unaffected
D. unpredictable
E. none of the above - Pitot tube is used for measurement of__________________?
A. pressure
B. flow
C. velocity
D. dsscharge
E. viscosity