1000+ Hydraulic Machines MCQ Questions and Answers Pdf - 2

Question: 6

A Pelton wheel is a _____ impulse turbine

(A) Axial flow

(B) Inward flow

(C) Outward flow

(D) Tangential flow

Question: 7

For a semicircular vane when its velocity is half the jet velocity, efficiency is

(A) 50%

(B) 70%

(C) 100%

(D) 120%

Question: 8

In reaction turbines, total inlet energy is

(A) Pressure energy only

(B) Kinetic energy

(C) Both a and b

(D) None of the above

Question: 9

The cavitation in a turbine is mainly due to

(A) Low velocity

(B) High velocity

(C) High pressure

(D) Low pressure

Question: 10

Air vessel is provided to reciprocating pump near its

(A) Suction pipe

(B) Delivery pipe

(C) Neither at suction nor at delivery pipes

(D) Both at suction and delivery pipes