MCQ on Refrigeration and Air Conditioning 1- In vapor compression refrigeration system, liquid-to-suction heat exchanger is used to (A) Keep the COP constant (B) Prevent the liquid refrigerant from entering the compressor (C) Sub-cool the liquid refrigerant leaving the condenser (D) Sub-cool the vapor refrigerant from the evaporator 2- Wet bulb depression, under saturated […]
Read MoreRefrigeration and Air Conditioning MCQ. Multiple Choice Questions on Refrigeration and Air Conditioning. Interview questions on Refrigeration and Air Conditioning (RAC) 1- In SI unit, one ton of refrigeration is equal to (A) 210 J/min (B) 21 kJ/min (C) 21 J/min (D) 210 kJ/min 2- The refrigerant, commonly used in vapor absorption system, is […]
Read MoreRefrigeration and Air Conditioning MCQ Questions 1-One ton of refrigeration is equal to (A) 21 KJ/min (B) 105 KJ/min (C) 210 KJ/min (D) 420 KJ/min 2-A low side float valve maintains the level of refrigerant in (A) Flooded evaporator (B) Evaporator (C) Condenser (D) Compressor 3-When wet bulb and dry bulb temperature are […]
Read MoreQuestions on Refrigeration and Air conditioning 1-COP of refrigeration is always ___ one. (A) Equal to (B) Less than (C) Greater than (D) None of the above 2-Commonly used refrigerant in a domestic vapor compression refrigerator is (A) CO2 (B) Freon-12 (C) Ammonia (D) SO2 3-The expansion device used in domestic refrigerator: (A) Capillary tube […]
Read MoreMultiple Choice Questions (MCQ) with answers on Refrigeration and Air conditioning 1-During which component of vapour compression refrigeration system, the enthalpy remains constant: (A) Evaporator (B) Compressor (C) Throttle valve (D) None 2-Which one of the following is a CFC refrigerant? (A) R 744 (B) R 290 (C) R 502 (D) R 718 […]
Read MoreRefrigeration and Air Conditioning – Questions and Answers 1-The minimum temperature to which air can be cooled under ideal conditions in evaporative cooling is (A) Dew point temperature of the inlet air (B) Wet bulb temperature of the inlet air (C) Dry bulb temperature of the inlet air (D) All of the above 2-For […]
Read MoreRefrigeration and Air Conditioning – Multiple Choice Questions (MCQ) 1-Which of the following refrigerant has lowest freezing temperature? (A) Carbon dioxide (B) Ammonia (C) Freon-12 (D) Freon-22 (Ans: D) 2-The working fluid in Bell Coleman cycle is (A) Freon-12 (B) Carbon dioxide (C) Ammonia (D) Air (Ans: D) 3-In a vapour compression system, […]
Read MoreMultiple Choice Questions (MCQ) on Refrigeration and Air conditioning – set 2 A domestic refrigerator, set at 2°C, handles on an average a thermal load of 8000 kJ per day. The ambient temperature is 30°C and the COP of the refrigerator is 0.15 times that of a Carnot refrigerator. The daily electricity consumption in […]
Read MoreMultiple choice questions (MCQ) on Refrigeration and air conditioning 1. A refrigeration system a. Removes heat from a low temperature body and delivers it to a high temperature body b. Removes heat from a high temperature body and delivers it to a low temperature body c. Rejects energy to low temperature body d. None of […]
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