1. inlet losses
2. impeller channel losses
3. diffuser losses
4. all of the above
all of the above
1. 0.1%
2. 0.5%
3. 1%
4. 5%
1\%
1. directly proportional to clearance volume
2. greatly affected by clearance volume
3. not affected by clearance volume
4. inversely proportional to clearance volume
not affected by clearance volume
1. 1 : 1.2
2. 1 : 2
3. 1 : 4
4. 1 : 10
1 : 4
1. the metal piece will simply float over the mercury
2. the metal piece will be immersed in mercury by half
3. whole of the metal piece will be immersed with its top surface just at mercury level
4. metal piece will sink to the bottom
whole of the metal piece will be immersed with its top surface just at mercury level
1. the nature of the liquid and the solid
2. the material which exists above the free surface of the liquid
3. both a & b
4. any one of the above
both a & b
1. force of adhesion
2. force of cohesion
3. force of friction
4. force of diffusion
force of cohesion
1. viscosity
2. air resistance
3. surface tension forces
4. atmospheric pressure
surface tension forces
1. atmospheric pressure
2. surface tension
3. force of adhesion
4. force of cohesion
surface tension
1. 1 mm
2. 5 mm
3. 10 mm
4. 30 mm
30 mm