Exercise: Steam Nozzles And Turbines

Questions for: Steam Nozzles And Turbines

In turbines, the fluid undergoes a continuous steady flow process and the speed of flow is
A:
low
B:
very low
C:
high
D:
very high
Answer: D
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A single stage turbine is not used because it requires large reduction gearing due to very high rotational speed.
A:
Agree
B:
Disagree
C:
D:
Answer: A
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Stage efficiency is also known as
A:
diagram efficiency
B:
nozzle efficiency
C:
gross efficiency
D:
none of these
Answer: C
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The stage efficiency is the ratio of energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam.
A:
True
B:
False
C:
D:
Answer: B
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A steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as
A:
back pressure turbine
B:
pass out turbine
C:
low pressure turbine
D:
impulse turbine
Answer: B
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