Question: Defrosting of a refrigerator may be done by stopping the compressor for a short period.
[A].Correct
Incorrect
[A].
[B].
Answer: Option A
Explanation:
No answer description available for this question.
Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant before passing through the condenser is
Question: In a vapour compression system, the condition of refrigerant before passing through the condenser is
[A].saturated liquid
wet vapour
dry saturated vapour
superheated vapour
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
In a vapour compression system, the condition of refrigerant before entering the expansion or throttle valve is
Question: In a vapour compression system, the condition of refrigerant before entering the expansion or throttle valve is
[A].high pressure saturated liquid
wet vapour
very wet vapour
dry vapour
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
During a refrigeration cycle, heat is rejected by the refrigerant in a
Question: During a refrigeration cycle, heat is rejected by the refrigerant in a
[A].compressor
condenser
evaporator
expansion valve
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
In mechanical refrigeration system, the refrigerant occurs as liquid between condenser and expansion valve.
Question: In mechanical refrigeration system, the refrigerant occurs as liquid between condenser and expansion valve.
[A].True
False
[A].
[B].
Answer: Option A
Explanation:
No answer description available for this question.
In mechanical refrigeration system, the refrigerant has the maximum temperature
Question: In mechanical refrigeration system, the refrigerant has the maximum temperature
[A].in evaporator
before expansion valve
between compressor and condenser
between condenser and evaporator
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
The air cooling system mostly used in transport type aircrafts is
Question: The air cooling system mostly used in transport type aircrafts is
[A].simple air cooling system
simple evaporative air cooling system
boot-strap air cooling system
all of these
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
A boot-strap air cooling system has
Question: A boot-strap air cooling system has
[A].one heat exchanger
two heat exchangers
three heat exchangers
four heat exchangers
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
A simple air cooling system is good for __________ flight speeds.
Question: A simple air cooling system is good for __________ flight speeds.
[A].low
high
[A].
[B].
Answer: Option A
Explanation:
No answer description available for this question.
An ordinary passenger aircraft requires a cooling system of capacity.
Question: An ordinary passenger aircraft requires a cooling system of capacity.
[A].2 TR
4 TR
8 TR
10 TR
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.