Q. In order to avoid cavitation in centrifugal pumps ?
✅ Correct Answer: (A)
the suction pressure should be high
Hydraulic Machines MCQs | Page - 22
Dear candidates you will find MCQ questions of Hydraulic Machines here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. Which of the following statement is correct as regard to water wheels ?
✅ Correct Answer: (D)
all of the above
Q. The flow ratio in case of Francis turbine varies from ?
✅ Correct Answer: (A)
0.15 to 0.3
Q. In an outward flow reaction turbine ?
✅ Correct Answer: (B)
the water enters at the centre of the wheel and then flows towards the outer periphery of the wheel
Q. The jet ratio is defined as the ratio of the ?
✅ Correct Answer: (C)
diameter of Pelton wheel to the diameter of jet
Q. The mechanical efficiency of an impulse turbine is ?
✅ Correct Answer: (B)
ratio of the actual work available at the turbine to the energy imparted to the wheel
Q. A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is ......... of the jet velocity ?
✅ Correct Answer: (B)
one-third
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