Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning

31.
The expansion valve in a refrigerator controls the flow of refrigerant.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
The relative humidity lines on a psychrometric chart are
vertical and uniformly spaced
horizontal and uniformly spaced
horizontal and non-uniformly spaced
curved lines
Answer: Option
Explanation:
No answer description is available. Let's discuss.

33.
The C.O.P. of a heat pump working on a reversed Carnot cycle is
Answer: Option
Explanation:
No answer description is available. Let's discuss.

34.
A vapour absorption refrigeration system
gives noisy operation
gives quiet operation
requires little power consumption
cools below 0° C
Answer: Option
Explanation:
No answer description is available. Let's discuss.

35.
The rato of energy transferred by convection to that by conduction is called
Stanton number
Nusselt number
Biot number
Peclet number
Answer: Option
Explanation:
No answer description is available. Let's discuss.