The ratio of absolute viscosity to mass density is known as_________________?
(A) specific viscosity
(B) viscosity index
(C) kinematic viscosity
(D) coefficient of viscosity
(D) coefficient of compressibility
Alcohol is used in manometers because___________________?
(A) it has low vapour pressure
(B) it is clearly visible
(C) it has low surface tension
(D) it can provide longer column due to low density
(D) is provides suitable meniscus
Specific weight of sea water is more that of pure water because it contains_________________?
(A) dissolved air
(B) dissolved salt
(C) suspended matter
(D) all of the above
(D) heavy water
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
(D) adhesion
Falling drops of water become spheres due to the property of ____________________?
(A) adhesion
(B) cohesion
(C) surface tension
(D) viscosity
(D) compressibility
The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be ________________?
(A) 500 kg
(B) 1000 kg
(C) 1500 kg
(D) 2000 kg
(D) 4000 kg
The buoyancy depends on___________________?
(A) mass of liquid displaced
(B) viscosity of the liquid
(C) pressure of the liquid displaced
(D) depth of immersion
(D) none of the above
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
(D) none of die above
Surface energy per unit area of a surface is numerically equal to _____________________?
(A) atmospheric pressure
(B) surface tension
(C) force of adhesion
(D) force of cohesion
(D) viscosity
The normal stress in a fluid will be constant in all directions at a point only if__________________________?
(A) it is incompressible
(B) it has uniform viscosity
(C) it has zero viscosity
(D) it is frictionless
(D) it is at rest