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MCQs 1: Which of the following cycles uses air as the refrigerant__________________?

Ericsson Stirling Carnot Bell-coleman none of the above
Answer Explanation

MCQs 2: The relative coefficient of performance is_____________________?

actual COP/fheoretical COP theoretical COP/actual COP actual COP x theoretical COP 1-actual COP x theoretical COP 1-actual COP/fheoretical COP.
Answer Explanation

MCQs 3: Clapeyron equation is applicable for registration at___________________?

saturation point of vapor saturation point of liquid sublimation temperature triple point critical point
Answer Explanation

MCQs 4: In vapor compression cycle, the condition of refrigerant is very wet vapor________________?

after passing through the condenser before passing through the condenser after passing through the expansion or throttle valve before entering the expansion valve before entering the compressor
Answer Explanation

MCQs 5: A refrigerant should have _____________________?
Pick up the wrong statement ?

Tow specific heat of liquid high boiling point high latent heat of vaporisation higher critical temperature low specific volume of vapour
Answer Explanation

MCQs 6: Clapeyron equation is a relation between___________________?

temperature, pressure and enthalpy specific volume and enthalpy temperature and enthalpy temperature, pressure, and specil volume temperature, pressure, specific volur and’enthalpy
Answer Explanation

MCQs 7: In vapor compression cycle, the condition of refrigerant is high pressure saturated liquid________________?

after passing through the condenser before passing through the condenser after passing through the expansion or thiottle valve before entering the expansion valve before entering the compressor
Answer Explanation

MCQs 8: The boiling point of ammonia is___________________?

-100°C -50°C – 33.3°C 0°C 33.3°C
Answer Explanation

MCQs 9: In S.J. unit, one ton of refrigeration is equal to___________________?

210 kJ/min 21 kJ/min 420 kJ/min 840 kJ/min 105 kJ/min
Answer Explanation

MCQs 10: Allowable pressure on high-pressure side or ammonia absorption system is of the order of_________________?

atmospheric pressure slightly above atmospheric pressure 2-4 bars 5-6 bars 7-10 bars
Answer Explanation

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