ExamVeda
Login
Home

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-5 section-3

Each section contains 100 MCQs on Refrigeration and Air Conditioning .
41
Most of the domestic refrigerators work on the following refrigeration system
Discuss
Answer & Solution
Answer: Option A
Solution:
Most of the domestic refrigerators work on the Vapour Compression refrigeration system
42
In a lithium bromide absorption refrigeration system
Discuss
Answer & Solution
Answer: Option B
Solution:
In a lithium bromide absorption refrigeration system Water is used as a refrigerant and lithium bromide as an absorbent
43
The operating temperature of a cold storage is -2°C. The heat leakage from the surrounding is 30 kW for the ambient temperature of 40°C. The actual C.O.P. of refrigeration plant used is one fourth that of ideal plant working between the same temperatures. The power required to drive the plant is
Discuss
Answer & Solution
Answer: Option D
Solution:
The operating temperature of a cold storage is -2°C. The heat leakage from the surrounding is 30 kW for the ambient temperature of 40°C. The actual C.O.P. of refrigeration plant used is one fourth that of ideal plant working between the same temperatures. The power required to drive the plant is 18.6 kW
44
The alignment circle is marked on the psychrometric chart at
Discuss
Answer & Solution
Answer: Option B
Solution:
The alignment circle is marked on the psychrometric chart at 26°C DBT and 50% RH
45
The evolution of heat of solution takes place in ammonia absorption plant when
Discuss
Answer & Solution
Answer: Option A
Solution:
The evolution of heat of solution takes place in ammonia absorption plant when Ammonia vapour goes into solution
46
When the temperature of the surrounding is higher than the temperature of the body, then the heat loss by convection from the body to the surrounding will be
Discuss
Answer & Solution
Answer: Option B
Solution:
When the temperature of the surrounding is higher than the temperature of the body, then the heat loss by convection from the body to the surrounding will be Negative
47
The capacity of a domestic refrigerator is in the range of
Discuss
Answer & Solution
Answer: Option A
Solution:
The capacity of a domestic refrigerator is in the range of 0.1 to 0.3 TR
48
Mass flow ratio of NH3 in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of
Discuss
Answer & Solution
Answer: Option B
Solution:
Mass flow ratio of NH3 in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of 1 : 9.
49
Allowable pressure on high pressure side or ammonia absorption system is of the order of
Discuss
Answer & Solution
Answer: Option D
Solution:
Allowable pressure on high pressure side or ammonia absorption system is of the order of 56 bars
50
Rating of a domestic refrigerator is of the order of
Discuss
Answer & Solution
Answer: Option A
Solution:
Rating of a domestic refrigerator is of the order of 0.1 ton