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Mechanical Engineering - Steam Nozzles and Turbines

Exercise : Steam Nozzles and Turbines - Section 2
26.
The reheat factor depends upon
initial pressure and superheat
exit pressure
turbine stage efficiency
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
In an impulse turbine
the steam is expanded in nozzles only and there is a pressure drop and heat drop
the steam is expanded both in fixed and moving blades continuously
the steam is expanded in moving blades only
the pressure and temperature of steam remains constant
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
A nozzle is said to be a divergent 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.
29.
The ratio of the cumulative heat drop to the isentropic heat drop is called reheat factor.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The compounding of turbines is done in order to
reduce speed of rotor
improve efficiency
reduce exit losses
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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