Explore topic-wise MCQs in Refrigeration.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Refrigeration knowledge and support exam preparation. Choose a topic below to get started.

1.

Find the relative COP of the system whose maximum COP is 2.0 and the actual COP is 0.8.

A. 0.5
B. 0.4
C. 0.3
D. 0.6
Answer» C. 0.3
Discussion
2.

Find the COP of the lithium bromide absorption system when the heat supplied in the generator (QG) is 1255 KJ/kg and the heat absorbed in the evaporator (Qe) is 955 KJ/kg.

A. 0.66
B. 0.75
C. 0.85
D. 0.76
E. is 955 KJ/kg.a) 0.66b) 0.75c) 0.85d) 0.76
Answer» E. is 955 KJ/kg.a) 0.66b) 0.75c) 0.85d) 0.76
Discussion
3.

In lithium bromide absorption refrigeration system it is not necessary to keep the refrigeration temperature above 0°C.

A. True
B. False
Answer» C.
Discussion
4.

Which of the refrigerant is used as a refrigerant in Lithium Bromide Absorption Refrigeration system?

A. Ammonia
B. Water
C. Hydrogen
D. Lithium Bromide
Answer» C. Hydrogen
Discussion
5.

Find the COP of the domestic Electrolux system when the heat supplied in the generator (QG) is 1885 KJ/kg and the heat absorbed in the evaporator (Qe) is 1045 KJ/kg.

A. 0.4
B. 0.45
C. 0.55
D. 0.65
E. is 1045 KJ/kg.a) 0.4b) 0.45c) 0.55d) 0.65
Answer» D. 0.65
Discussion
6.

The Domestic Electrolux cannot be used for industrial purposes.

A. True
B. False
Answer» B. False
Discussion
7.

The Domestic absorption type refrigerator was invented by?

A. Carl Munters
B. Baltzer Von Platan
C. Carl Munters and Baltzer Von Platan
D. Light Foot
Answer» D. Light Foot
Discussion
8.

What is water used for in the Domestic Electrolux?

A. Water is used to absorb hydrogen
B. Water is used to absorb ammonia
C. Water is used as a lubricant
D. Water is used to keep the inner surface clean
Answer» C. Water is used as a lubricant
Discussion
9.

Which one of the refrigerant is not used in the domestic Electrolux?

A. Ammonia
B. Water
C. Hydrogen
D. Freon – 12
Answer» E.
Discussion