Heat transfer MCQ with Answers

Heat transfer MCQ with Answers

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

Answer is:

takes place at constant pressure.

167) One ton of the refrigeration is

Answer is:

the refrigeration effect to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours

168) Superheating in a refrigeration cycle

Answer is:

decreases COP

169) For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then

Answer is:

perfectly tight vapour seal should be used

170) Choose the correct statement

Answer is:

If operating temperature of system is low, then refrigerant with low boiling point should be used

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