Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning

26. 

Planck's law holds good for all coloured bodies.

A. True
B. False

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

27. 

In mechanical refrigeration system, the refrigerant has the maximum temperature

A. in evaporator
B. before expansion valve
C. between compressor and condenser
D. between condenser and evaporator

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

28. 

The capacity of a domestic refrigerator is in the range of

A. 0.1 to 0.3 TR
B. 1 to 3 TR
C. 3 to 5 TR
D. 5 to 7 TR

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

29. 

The condition of refrigerant after passing through the condenser in a vapour compression system is

A. saturated liquid
B. wet vapour
C. dry saturated vapour
D. superheated vapour

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

30. 

The leakage in a refrigeration system using freon is detected by

A. halide torch
B. sulphur sticks
C. soap and water
D. all of these

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.