29) The Thomson's turbine is ______ reaction turbine.

an axial flow

an inward flow

an outward flow

a mixed flow

Answer is:

an inward flow

Hydraulic Machines MCQ with Answers

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30) The flow ratio of Francis turbine is defined as the ratio of the

velocity of flow at inlet to the theoretical jet velocity

theoretical velocity of jet to the velocity of flow at inlet

velocity of runner at inlet to the velocity of flow at inlet

none of the above

Answer is:

velocity of flow at inlet to the theoretical jet velocity

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

at full load

at which there will be no damage to the runner

corresponding to maximum overload permissible

at which the turbine will run freely without load

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

normal speed

unit speed

specific speed

none of these

Answer is:

specific speed

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

remains same

increases

decreases

none of the above

Answer is:

increases

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29) The Thomson's turbine is ______ reaction turbine.

an inward flow

Hydraulic Machines MCQ with Answers

Related Hydraulic Machines MCQ with Answers

30) The flow ratio of Francis turbine is defined as the ratio of the

velocity of flow at inlet to the theoretical jet velocity

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

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

specific speed

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

increases

Hydraulic Machines MCQ with Answers