An ideal flow of any fluid must fulfil the following :
A. Newton’s law of motion
B. Newton’s law of viscosity
C. Pascal’ law
D. Continuity equation
Fluid is a substance which offers no resistance to change of :
A. pressure
B. flow
C. shape
D. volume
The buoyancy depends on :
A. mass of liquid displaced
B. viscosity of the liquid
C. pressure of the liquid displaced
D. depth of immersion
Falling drops of water become spheres due to the property of :
A. adhesion
B. cohesion
C. surface tension
D. viscosity
Which of the following is the unit of kinematic viscosity :
A. pascal
B. poise
C. stoke
D. faraday
The density of water is 1000 kg/m3 at :
A. 0°C
B. 0°K
C. 4°C D. 20°C
For manometer, a better liquid combination is one having :
A. higher surface tension
B. lower surface tension
C. surface tension is no criterion
D. high density and viscosity
Units of surface tension are :
A. energy/unit area
B. distance
C. both of the above
D. it has no units
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