Refrigeration And Air Conditioning MCQ Questions & Answers

Refrigeration And Air Conditioning MCQ Questions & Answers | Mechanical Engineering

Learn Refrigeration And Air Conditioning MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. Page-9 section-3

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

Discuss

Answer & Solution

Answer: Option C

Solution:

In mechanical refrigeration system, the refrigerant has the maximum temperature Between compressor and condenser

In a vapour compression cycle, the refrigerant immediately after expansion valve is

A) Liquid B) Sub-cooled liquid C) Saturated liquid D) Wet vapour

Discuss

Answer & Solution

Answer: Option D

Solution:

In a vapour compression cycle, the refrigerant immediately after expansion valve is wet vapour

A human body feels comfortable when the heat produced by the metabolism of human body is equal to the

A) Heat dissipated to the surroundings B) Heat stored in the human body C) Sum of (A) and (B) D) Difference of (A) and (B)

Discuss

Answer & Solution

Answer: Option C

Solution:

A human body feels comfortable when the heat produced by the metabolism of human body is equal to theHeat dissipated to the surroundings And Heat stored in the human body

The domestic refrigerator uses following type of compressor

A) Centrifugal B) Axial C) Miniature sealed unit D) Piston type reciprocating

Discuss

Answer & Solution

Answer: Option D

Solution:

The domestic refrigerator uses following type of compressor Piston type reciprocating
The compressor constricts the refrigerant vapor, raising its pressure and temperature, and pushes it into the coils of the condenser on the outside of the refrigerator.
The refrigerant absorbs the heat inside the fridge when it flows through the evaporator coils, cooling down the air inside the fridge.

The coefficient of performance of Heat Pump is always _________ one.

A) Equal to B) Less than C) Greater than D) None of these

Discuss

Answer & Solution

Answer: Option C

Solution:

The coefficient of performance of Heat Pump is always Greater than one.