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Engineering
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ME Set-3
Heat transfer
154

Heat transfer MCQ with Answers

154) Aqua ammonia is used as refrigerant in the following type of refrigeration system

compression

direct

indirect

absorption

Answer is:

absorption

Explanation:

Aqua Ammonia is used as refrigerant in the absorption type of refrigeration system.

Heat transfer MCQ with Answers

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Related Heat transfer MCQ with Answers

155) If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be

same

more

less

more/less depending on rating

Answer is:

more

156) In a refrigeration cycle, the flow of refrigerant is controlled by

compressor

condenser

evaporator

expansion valve

Answer is:

expansion valve

157) Where does the lowest temperature occur in a vapour compression cycle ?

condenser

evaporator

compressor

expansion valve

Answer is:

evaporator

158) The leaks in a refrigeration system using Freon are detected by

halide torch which on detection produces greenish flame lighting

sulphur sticks which on detection gives white smoke

using reagents

smelling

Answer is:

halide torch which on detection produces greenish flame lighting

Heat transfer MCQ with Answers

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