Refrigeration and Air Conditioning Quiz | Refrigeration and Air Conditioning Multiple Choice Questions and Answers
Questions
1
Allowable pressure on high-pressure side or ammonia absorption system is of the order of
Answer: 5-6 bars
2
The vapour compression refrigerator employs the following cycie
Answer: Reversed Carnot
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5
One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice
Answer: in 24 hours
7
vapour compression cycle the condition off refrigerant is dry saturated vapour
Answer: before entering the compressor.
8
In vapour compression cycle the condition of refrigerant is superheated vapour
Answer: before passing through the condenser
9
In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid
Answer: before entering the expansion valve
10
In vapour compression cycle, the condition of refrigerant is very wet vapour
Answer: before entering the compressor
11
In vapour compression cycle, the conditii of refrigerant is saturated liquid
Answer: after passing through the condenser
12
Clapeyron equation is applicable for registration at
Answer: saturation point of vapour
13
Clapeyron equation is a relation between
Answer: temperature, pressure, specific volur and'enthalpy.
14
The relative coefficient of performance is
Answer: actual COP/fheoretical COP
15
An important characteristic of absorption system of refrigeration is
Answer: quiet operation
16
Ammonia-absorption refrigeration cycle requires
Answer: very little work input
17
Which of the following cycles uses air as the refrigerant
Answer: Bell-coleman
18
Vapour compression refrigeration is some what like
Answer: none of the above
19
A standard ice point temperature corresponds to the temperature of
Answer: mixture of ice and water Under equilibrium conditions.
20
Pick up the wrong statement. A refrigerant should have
Answer: high boiling point
