Exercise: Steam Nozzles And Turbines

Questions for: Steam Nozzles And Turbines

The rate of discharge through the nozzle __________ when the exit pressure is gradually reduced.
A:
remains same
B:
decreases
C:
increases
D:
Answer: C
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The discharge of steam in a convergent-divergent nozzle __________ after the throat (i.e. in the divergent portion of the nozzle)
A:
remains constant
B:
decreases
C:
increases
D:
Answer: A
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The pressure at which the steam leaves the nozzle is known as back pressure.
A:
Correct
B:
Incorrect
C:
D:
Answer: A
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The ratio of total useful heat drop to the total isentropic heat drop, is called
A:
stage efficiency
B:
internal efficiency
C:
Rankine efficiency
D:
none of these
Answer: B
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The flow through a nozzle is regarded as
A:
constant volume flow
B:
constant pressure flow
C:
isothermal flow
D:
isentropic flow
Answer: D
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