Hydraulic Machines MCQ with Answers

Hydraulic Machines MCQ with Answers

31) The runaway speed of a hydraulic turbine is the speed

Answer is:

at which the turbine will run freely without load

32) The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as

Answer is:

specific speed

33) The efficiency of a Pelton wheel working under constant head ______ with the increase in power.

Answer is:

increases

34) The discharge through a reaction turbine ____ with the increase in unit speed

Answer is:

decreases

35) The efficiency of a reaction turbine for a given head _____ with the increase in speed.

Answer is:

Decreases

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