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MCQs 1: In vapour compression cycle the condition of refrigerant is superheated vapour _____________________?

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 2: One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice_________________?

in 1 hour in 1 minute in 24 hours in 12 hours in 10 hours
Answer Explanation

MCQs 3: Critical temperature is’ the temperature above which _____________________?

a gas will never liquefy a gas will immediately liquefy water will evaporate water will never evaporate none of the above
Answer Explanation

MCQs 4: The COP of a domestic refrigerator___________________?

is less than 1 is more than 1 is equal to 1 depends upon the make depends upon the weather conditions
Answer Explanation

MCQs 5: Presence of moisture in a refrigerant affects the working of___________________?

compressor condenser evaparator expansion valve heat transfer
Answer Explanation

MCQs 6: Domestic refrigerator working on vapour compression cycle uses the following type of expansion device____________________?

electrically operated throttling valve manually operated valve thermostatic valve capillary tube expansion valve
Answer Explanation

MCQs 7: The domestic refrigerator uses following type of compressor ____________________?

centrifugal axial miniature sealed unit piston type reciprocating none of the above
Answer Explanation

MCQs 8: The refrigerant for a refrigerator should have ___________________?

high sensible heat high total heat high latent heat low latent heat low sensible heat
Answer Explanation

MCQs 9: Rating of a domestic refrigerator is of the order of__________________?

0.1 ton 5 tons 10 tons 40 tons 100 tons
Answer Explanation

MCQs 10: Refrigeration in aeroplanes usually employs the following refrigerant___________________?

Co2 Freon-11 Freon-22 Air none of the above
Answer Explanation

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