Refrigeration And Air Conditioning MCQ Questions & Answers | Mechanical Engineering

A. Higher in winter than in summer

B. Lower in winter than in summer

C. Same in winter and summer

D. Not dependent on season

A. Freezing coil

B. Cooling coil

C. Chilling coil

D. All of these

A. Compressor

B. Condenser

C. Evaporator

D. Expansion valve

A. Carnot cycle

B. Reversed Rankine cycle

C. Reversed Carnot cycle

D. None of the above

A. Decreases

B. Increases

C. Remains same

D. Depends on other factors

A. 0.2

B. 1.2

C. 5

D. 6

A. $$\frac{{{\text{t}}{{\text{d}}_2} - {\text{t}}{{\text{d}}_3}}}{{{\text{t}}{{\text{d}}_3} - {\text{t}}{{\text{d}}_1}}}$$

B. $$\frac{{{\text{t}}{{\text{d}}_3} - {\text{t}}{{\text{d}}_2}}}{{{\text{t}}{{\text{d}}_3} - {\text{t}}{{\text{d}}_1}}}$$

C. $$\frac{{{\text{t}}{{\text{d}}_3} - {\text{t}}{{\text{d}}_1}}}{{{\text{t}}{{\text{d}}_2} - {\text{t}}{{\text{d}}_3}}}$$

D. $$\frac{{{\text{t}}{{\text{d}}_3} - {\text{t}}{{\text{d}}_1}}}{{{\text{t}}{{\text{d}}_3} - {\text{t}}{{\text{d}}_2}}}$$

A. 0.1 to 0.5 h.p. per ton of refrigeration

B. 0.5 to 0.8 h.p. per ton of refrigeration

C. 1 to 2 h.p. per ton of refrigeration

D. 2 to 5 h.p. per ton of refrigeration

A. -86.6°C

B. -95.2°C

C. -107.7°C

D. -157.7°C

A. (C.O.P.)_P = (C.O.P.)_R + 2

B. (C.O.P.)_P = (C.O.P.)_R + 1

C. (C.O.P.)_P = (C.O.P.)_R - 1

D. (C.O.P.)_P = (C.O.P.)_R