Physics Test Preparations On Hydraulic Machines Part 1

Test Preparation on Physics Test Preparations On Hydraulic Machines Part 1

1.

The power required to drive a centrifugal pump is directly proportional to __________ of its impeller.

1diameter
2square of diameter
3cube of diameter
4fourth power of diameter

2.

The mechanical efficiency of an impulse turbine is

1ratio of the actual power produced by the turbine to the energy actually supplied by the turbine
2ratio of the actual work available at the turbine to the energy imparted to the wheel
3ratio of the Work done on the wheel to the energy of the jet
4none of the above

3.

Discharge of a centrifugal pump is

1directly proportional to diameter of its impeller
2inversely proportional to diameter of its impeller
3directly proportional to (diameter)2 of its impeller
4inversely proportional to (diameter)2 of its impeller

4.

A Pelton wheel develops 1750 kW under ahead of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit power of the wheel is

10.25 kW
20.75 kW
31.75 kW
43.75 kW

Check your progress:


Right Ans	Wrong Ans	Not Attempted

Prev Question Next Question Show Answer