Steam and Gas Turbines Questions and Answers – Blade Angle, Gauging and Pitch, Width and Height

This set of Steam and Gas Turbines Interview Questions and Answers for experienced focuses on “Blade Angle, Gauging and Pitch, Width and Height”.

1. Ram Air turbine generates ________ from air stream.
a) losses
b) power
c) work
d) none
View Answer

Answer: b
Explanation: Ram Air turbine generates power from air stream.

2. Ram Air turbine can be connected to hydraulic pump.
a) True
b) False
View Answer

Answer: a
Explanation: Ram air turbine can be connected to generator or hydraulic pump.

3. In steam and gas turbines Casing contains controls for working fluids.
a) True
b) False
View Answer

Answer: a
Explanation: In steam and gas turbines casing over turbine blades contains controls for working fluids.
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4. When pressure drop is in stages then that turbine is called as ________
a) velocity compounded impulse turbine
b) pressure compounded impulse turbine
c) velocity compounded reaction turbine
d) none of the mentioned
View Answer

Answer: b
Explanation: In pressure compounded impulse turbine pressure drop is in several stages and pressure loss is reduced.

5. Steam velocities in pressure compounding is ______
a) low
b) high
c) velocity has nothing to do with pressure compounding
d) none of the mentioned
View Answer

Answer: a
Explanation: In pressure compounding the Conversion of kinetic energy in work is in several small stages and hence velocity of steam is low.
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6. In parsons turbine to increase area between blades its height is to be ________
a) height has nothing to do with area between blades
b) decreased
c) increased
d) none of the mentioned
View Answer

Answer: c
Explanation: In parsons turbine velocity is increased and as a result area between the blades is to be increased and it was increased by tapering the blade height.

7. If specific volume of steam increases its blade height _______
a) increases
b) decreases
c) not related with each other
d) none of the mentioned
View Answer

Answer: a
Explanation: If the specific volume of steam increases its area need to be increased and hence its blade height is increased.
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8. Blade entrance angle is measure for __________
a) stationary blades
b) moving blades
c) stationary & moving blades
d) none of the mentioned
View Answer

Answer: b
Explanation: Steam initially enters moving blades and hence blade entrance angle is measured for moving blades.

9. Blade exit angle is a measure for _________
a) moving & fixed blade
b) moving blade
c) fixed blade
d) none of the mentioned
View Answer

Answer: c
Explanation: Steam exits the moving blade and then it enters fixed blade and hence blade exit angle is measured at fixed blades.
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10. Nozzle exit angle is the measure of angle with which steam is leaving the nozzle.
a) True
b) False
View Answer

Answer: a
Explanation: Nozzle exit angle is the angle with which steam exits the nozzle.

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To practice all areas of Steam and Gas Turbines for interviews, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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