Refrigeration And Air Conditioning MCQ Questions & Answers | Mechanical Engineering

A. Compressor

B. Condenser

C. Evaporator

D. Expansion valve

A. Inflammable

B. Toxic

C. Non-inflammable and toxic

D. Nontoxic and non-inflammable

A. Halocarbon refrigerants

B. Zoetrope refrigerants

C. Inorganic refrigerants

D. Hydrocarbon refrigerants

A. The standard unit used in refrigeration problems

B. The cooling effect produced by melting 1 ton of ice

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

D. The refrigeration effect to produce 1 ton of ice at NTP conditions

A. $$\frac{{3.5}}{{{\text{C}}{\text{.O}}{\text{.P}}{\text{.}}}}$$

B. $$\frac{{{\text{C}}{\text{.O}}{\text{.P}}{\text{.}}}}{{3.5}}$$

C. 3.5 × C.O.P.

D. None of these

A. noisy operation

B. quiet operation

C. cooling below 0°C

D. very little power consumption

A. Frosting evaporator

B. Non-frosting evaporator

C. Defrosting evaporator

D. None of these

A. Temperature, pressure and enthalpy

B. Specific volume and enthalpy

C. Temperature and enthalpy

D. Temperature, pressure, specific volume and enthalpy

A. Same

B. More

C. Less

D. More/less depending on rating

A. After passing through the condenser

B. Before passing through the condenser

C. After passing through the expansion throttle valve

D. Before entering the expansion valve