The property by virtue of which a liquid opposes relative motion between its different layersis called A) Surface tension B) Co-efficient of viscosity C) Viscosity D) Osmosis
The units of dynamic or absolute viscosity are A) Metres2 per sec B) Kg sec/meter C) Newton-sec per meter D) Newton-sec2 per meter
The difference in pressure between the inside and outside of a liquid drop is A) P = Txr B) P = T/r C) P = T/2r D) P = 2T/r
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
The free surface of a liquid behaves like a sheet and tends to contract to the smallest possible area due to the A) Force of adhesion B) Force of cohesion C) Force of friction D) None of the above
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
Falling drops of water become spheres due to the property of A) Adhesion B) Cohesion C) Surface tension D) Viscosity
The free surface of a liquid tends to contract to the smallest possible area due to the force of A) Surface tension B) Viscosity C) Friction D) Cohesion
The specific weight of seawater is more than that of pure water because it contains A) Dissolved air B) Dissolved salt C) Suspended matter D) All of the above