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Mechanical Engineering - Steam Nozzles and Turbines

Exercise : Steam Nozzles and Turbines - Section 1
21.
When the back pressure of a nozzle is below the designed value of pressure at exit of nozzle, the nozzle is said to be
choked
underdamping
overdamping
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
The ratio of the workdone on the blades to the energy supplied to the blades, is called
blading efficiency
nozzle efficiency
gross or stage efficiency
mechanical efficiency
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
The discharge is __________ at critical pressure.
zero
minimum
maximum
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
The supersaturated flow of steam through a nozzle as compared to a stable flow, the available heat drop
remains the same
increases
decreases
is unpredictable
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
The steam leaves the nozzle at a
high pressure and a low velocity
high pressure and a high velocity
low pressure and a low velocity
low pressure and a high velocity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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