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Mechanical Engineering - Steam Nozzles and Turbines

Exercise : Steam Nozzles and Turbines - Section 1
1.
A nozzle is said to be a convergent nozzle
when the cross-section of the nozzle increases continuously from entrance to exit
when the cross-section of the nozzle decreases continuously from entrance to exit
when the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
A turbine is said to have an axial discharge when the steam leaves the blade tip at __________ to the direction of the blade motion.
60°
90°
180°
270°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
The flow through a nozzle is regarded as
constant volume flow
constant pressure flow
isothermal flow
isentropic flow
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
The ratio of total useful heat drop to the total isentropic heat drop, is called
stage efficiency
internal efficiency
Rankine efficiency
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
The pressure at which the steam leaves the nozzle is known as back pressure.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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