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Engineering
Mechanical
ME Set-3
Heat transfer
162

Heat transfer MCQ with Answers

162) Freon group of refrigerants are

non-toxic and non-inflammable

toxic

non-inflammable and toxic

non-toxic and inflammable

Answer is:

non-toxic and non-inflammable

Heat transfer MCQ with Answers

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Related Heat transfer MCQ with Answers

163) Ammonia is

non-toxic

non-inflammable

toxic and non-inflammable

highly toxic and inflammable

Answer is:

highly toxic and inflammable

164) In vapour compression cycle using NH3 as refrigerant, initial charge is filled at

suction of compressor

delivery of compressor

high pressure side close to receiver

low pressure side near receiver

Answer is:

high pressure side close to receiver

165) Short horizontal lines on pressure-enthalpy chart show

constant pressure lines

constant temperature lines

constant total heat lines

constant entropy lines

Answer is:

constant pressure lines

166) On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process

involves no change in volume

takes place at constant temperature

takes place at constant entropy

takes place at constant pressure.

Answer is:

takes place at constant pressure.

Heat transfer MCQ with Answers

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