Recent questions without answers

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The velocity of steam at the outlet of a nozzle for a heat drop of 400 kJ/kg will be approximately.

asked Jan 15, 2018 in PPE by chandu (215k points)

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Which of the following is/are reversible process (es)?

asked Jan 15, 2018 in TD by chandu (215k points)

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In isentropic flow between two points, the stagnation

asked Jan 15, 2018 in PPE by chandu (215k points)

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The Mach number of the flow will be

asked Jan 15, 2018 in PPE by chandu (215k points)

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Which one of the following diagrams depicts correctly the shape of a supersonic diffuser?

asked Jan 15, 2018 in PPE by chandu (215k points)

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The sequence of the flow conditions labeled (1), (2), (3) and (4) in the figure is respectively

asked Jan 15, 2018 in PPE by chandu (215k points)

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What is the value of temperature $T_{2}$?

asked Jan 15, 2018 in TD by chandu (215k points)

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For supersaturated flow through a steam nozzle, the

asked Jan 15, 2018 in PPE by chandu (215k points)

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The critical pressure ratio for maximum discharge through a nozzle is given by

asked Jan 15, 2018 in PPE by chandu (215k points)

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In which of the above processes, the change in entropy will be positive?

asked Jan 15, 2018 in TD by chandu (215k points)

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What will be the least rate of heat rejection per kW net output of the engine?

asked Jan 15, 2018 in TD by chandu (215k points)

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The efficiency of the engine is

asked Jan 15, 2018 in TD by chandu (215k points)

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Which of the above statements is/are correct?

asked Jan 15, 2018 in TD by chandu (215k points)

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Assertion (A): Efficiency of a reversible engine operating between

asked Jan 15, 2018 in TD by chandu (215k points)

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If the efficiencies of the engines are same then the relationship between

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Which one of the following is the correct representation of

asked Jan 15, 2018 in TD by chandu (215k points)

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The thermal efficiency of the engine is approximately equal to

asked Jan 15, 2018 in TD by chandu (215k points)

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The entropy change of the system as its temperature changes form T1 to T2 is equal to

asked Jan 15, 2018 in TD by chandu (215k points)

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In which one of the following situations the entropy change will be negative:

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Which of these statements is/are correct?

asked Jan 15, 2018 in TD by chandu (215k points)

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