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

The density of water is 1000 kg/m3 at__________________?

A. 0°c
B. 0°k
C. 4°c d. 20°c
E. All temperature

The ratio of absolute viscosity to mass density is known as_________________?

A. Specific viscosity
B. Viscosity index
C. Kinematic viscosity
D. Coefficient of viscosity

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

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

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

Falling drops of water become spheres due to the property of ____________________?

A. Adhesion
B. Cohesion
C. Surface tension
D. Viscosity

The buoyancy depends on___________________?

A. Mass of liquid displaced
B. Viscosity of the liquid
C. Pressure of the liquid displaced
D. Depth of immersion

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

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