Refrigeration and Air Conditioning Quiz | Refrigeration and Air Conditioning Objective Type Questions and Answers
Questions
21
In refrigerator, liquid receiver is required between condenser and flow controlling device, if quantity of refrigerant for system is
Answer: more than or equal to 3.65 kg
22
Highest temperature encountered in refrigeration cycle should be
Answer: much below critical temperature
⭐ Make GKSeries Your Preferred Source on Google
Add GKSeries as Preferred Source
23
The higher temperature in vapour compression cycle occurs at
Answer: compressor discharge
24
The bank of tubes at the back of domestic refrigerator are
Answer: condenser tubes
25
For better COP of refrigerator, the pressure range corresponding to temperature in evaporator and condenser must be
Answer: small
26
The vapour pressure of refrigerant should be
Answer: higher than atmospheric pressure
27
In a vapour compression cycle, the refrigerant immediately after expansion valve is
Answer: wet vapour
30
Domestic refrigerator working on vapour compression cycle uses the following type of expansion device
Answer: capillary tube
31
Refrigeration in aeroplanes usually employs the following refrigerant
Answer: Air
32
Presence of moisture in a refrigerant affects the working of
Answer: expansion valve
33
The domestic refrigerator uses following type of compressor
Answer: piston type reciprocating
37
Critical temperature is' the temperature above which
Answer: a gas will never liquefy
38
Critical pressure of a liquid is the pressure
Answer: above which liquid will remain liquid
39
The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases,
Answer: will be higher
