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RRB/SSC JE Mech: POWER PLANT Quiz 5

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Question 1

In a steam nozzle, to increase the velocity of steam above sonic velocity by expanding steam below critical pressure

Question 2

An air standard Brayton cycle operating between the temperature limits of 300 K and 1500 K. For maximum work output, what will be the pressure ratio and thermal efficiency (in%) of the cycle respectively?

Question 3

The air pre-heater of a boiler is located between

Question 4

A gas turbine plant operates on Brayton cycle between 300 K and 1073 K. The maximum work done per kg of air (in kJ) and corresponding efficiency (in %)  respectively are:

Question 5

In which modification of simple gas turbine cycle, is work ratio increased?
1) Regenerative gas turbine cycle.
2) Gas turbine cycle with reheating.
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Jul 30ESE & GATE ME