365. If in above problem, the heat rejected is 945 kcal/mt then process will be
A.Reversible
B.Irreversible
C.Impossible
D.Hypothetical

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366. A heat engine is supplied heat at the rate of 30,000 J/s and gives and output of 9 kW. The thermal efficiency of engine will be
A.0.3
B.0.33
C.0.4
D.0.5

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367. In the above example, heat rejected will be
A.2.1 kJ/s
B.21 kJ/s
C.210 kJ/s
D.2100 kJ/s

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368. In case of refrigeration machine, COP will be equal to
A.Q2
B.Q1
C.Q1 - Q2
D.Q2 - Q 1

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369. On a pressure volume diagram, the process line pV" = C (as the value of n increases) will
A.Come closer to y-axis
B.Come closer to x-axis
C.Come closer to 45° inclined line
D.Remain in same position

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370. In a cycle, the heat is rejected at
A.Constant temperature
B.Constant pressure
C.Constant volume
D.Constant enthalpy

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371. Steam flow through a nozzle is considered as
A.Constant flow
B.Isothermal flow
C.Adiabatic flow
D.Constant volume flow

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