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ME Set-1
Heat Transfer Refrigeration and Air Conditioning
260

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

260) The leakage in a refrigeration system using freon is detected by

halide torch

sulphur sticks

soap and water

all of these

Answer is:

halide torch

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

261) If the condenser temperature is kept constant, the coefficient of performance of a refrigeration cycle increases with the increase in evaporator temperature.

Yes

No

Unknown

None

Answer is:

Yes

262) The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles caused by some mechanical means, is known as

conduction

free convection

forced convection

radiation

Answer is:

forced convection

263) When ? is absorptivity, ? is reflectivity and ? is transmittivity, then for a diathermanous body,

? = 1, ? = 0 and ? = 0

? = 0, ? = 1 and ? = 0

? = 0, ? = 0 and ? = 1

? + ? = 1 and ? = 0

Answer is:

? + ? = 1 and ? = 0

264) When there is an addition of water vapour to the air of enclosed space, a gain in __________ is said to occur.

sensible heat

latent heat

specific heat

none of these

Answer is:

latent heat

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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