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Engineering
Mechanical
ME Set-1
Steam Nozzles and Turbines
125

Steam Nozzles and Turbines MCQ with Answers

125) In turbines, the fluid undergoes a continuous steady flow process and the speed of flow is

low

very low

high

very high

Answer is:

very high

Steam Nozzles and Turbines MCQ with Answers

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Related Steam Nozzles and Turbines MCQ with Answers

126) A nozzle is said to be a convergent-divergent nozzle, when the cross-section of a nozzle first decreases from its entrance to throat and then increases from its throat to exit.

Right

Wrong

Answer is:

Right

127) In an impulse reaction turbine, the pressure drops gradually and continuously over

fixed blades

moving blades

both fixed and moving blades

none of these

Answer is:

both fixed and moving blades

128) When the inlet pressure of steam is equal to the exit pressure, then

there is a pressure drop in the nozzle

fluid flows through the nozzle

pressure drops and fluid flows through the nozzle

there is no pressure drop and fluid does not flow through the nozzle

Answer is:

there is no pressure drop and fluid does not flow through the nozzle

129) The blade friction in the impulse turbine reduces the velocity of steam by __________ while it passes over the blades.

10 to 15%

15 to 20%

20 to 30%

30 to 40%

Answer is:

10 to 15%

Steam Nozzles and Turbines MCQ with Answers

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