A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be

QuestionsCategory: Mechanical EngineeringA reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be
VideRime Staff asked 5 years ago

A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be

a) 1.33

b) 2.33

c) 3.33

d) 4.33

Refrigeration & Air-Conditioning Practice Set-3