Question: Oil separator in a refrigeration cycle is installed [A]. before compressor [B]. between compressor and condenser [C]. between condenser and evaporator [D]. between condenser and expansion valve Answer: Option B Explanation: No answer description available for this question.

Question: During gas charging in an ammonia vapour compression system, the connection is made at the compressor outlet. [A]. Agree [B]. Disagree Answer: Option A Explanation: No answer description available for this question.

Question: The C.O.P. of an absorption type refrigerator is given by (where T1 = Temperature at which the working substance receives heat, T2 = Temperature of cooling water, and T3 = Evaporator temperature) [A]. [B]. [C]. [D]. Answer: Option B…

Question: A vapour absorption refrigerator uses __________ as a refrigerant. [A]. water [B]. ammonia [C]. freon [D]. aqua-ammonia Answer: Option D Explanation: No answer description available for this question.

Question: In order to collect liquid refrigerant and to prevent it from going to a __________ , a device known as accumulator is used at the suction of compressor. [A]. compressor [B]. condenser [C]. expansion valve [D]. evaporator Answer: Option…

Question: During sub-cooling, sensible heat from a liquid refrigerant is removed. [A]. Yes [B]. No Answer: Option A Explanation: No answer description available for this question.

Question: In a pressure enthalpy chart, the space between the saturated liquid line and saturated vapour line, represents sub-cooled liquid region. [A]. True [B]. False Answer: Option B Explanation: No answer description available for this question.

Question: In a pressure enthalpy chart, the space to the left of the saturated liquid line represents [A]. wet vapour region [B]. superheated vapour region [C]. sub-cooled liquid region [D]. none of these Answer: Option C Explanation: No answer description…

Question: In a vapour compression system, the condition of refrigerant is dry saturated vapour [A]. before entering the compressor [B]. after leaving the compressor [C]. before entering the condenser [D]. after leaving the condenser Answer: Option A Explanation: No answer…

Question: In a vapour compression refrigeration system, a throttle valve is used in place of an expander because [A]. it considerably reduces mass of the system [B]. it improves the C.O.P., as the condenser is small [C]. the positive work…