Hydraulic Machines MCQs | Page - 4
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. The action of a centrifugal pump is that of a reversed reaction turbine.
✅ Correct Answer: (A)
Correct
Q. Geometric similarity is said to exist between the model and the prototype, if both of them
✅ Correct Answer: (C)
are identical in shape, but differ only in size
Q. A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is
✅ Correct Answer: (C)
0.46
Q. Delivery head of water of a centrifugal pump is inversely proportional to diameter of its impeller.
✅ Correct Answer: (B)
No
Q. The undershot water wheels are those in which
✅ Correct Answer: (B)
the wheel runs entirely by the impulse of water
Q. In the casing of a centrifugal pump, the kinetic energy of the water is converted into pressure energy before the water leaves the casing.
✅ Correct Answer: (A)
True
Q. Head developed by a centrifugal pump is
✅ Correct Answer: (C)
proportional to diameter and speed of impeller
Q. The ratio of quantity of liquid discharged per second from the pump to the quantity of liquid passing per second through the impeller is known as
✅ Correct Answer: (D)
volumetric efficiency
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