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Mechanical Engineering - Steam Nozzles and Turbines

Exercise : Steam Nozzles and Turbines - Section 2
46.
When the nozzle operates with the maximum mass flow, the nozzle is said to be
choked
underdamping
overdamping
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
In a velocity compounded impulse turbine, when steam flows through the second row of moving blades,
velocity increases
velocity decreases
velocity remains constant
pressure remains constant
Answer: Option
Explanation:
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48.
The ratio of the energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam is called mechanical efficiency.
Yes
No
Answer: Option
Explanation:
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49.
A steam nozzle converts
heat energy of steam into kinetic energy
kinetic energy into heat energy of steam
heat energy of steam into potential energy
potential energy into heat energy of steam
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
The maximum discharge of steam through a convergent-divergent nozzle depends upon
area of nozzle at throat
initial pressure and volume of steam
final pressure ofsteam leaving the nozzle
both (a) and (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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