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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The capacity of a domestic refrigerator is in the range of

0.1 to 0.3 TR
5 to 7 TR
1 to 3 TR
3 to 5 TR

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Refrigeration and Air Conditioning
The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by

(
O.P)P = (
O.P)R
O.P)P = (
O.P.)R + 1
(
(
(
O.P.)P = (
O.P.)P = (
O.P.)R + 2
O.P)R - 1

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Refrigeration and Air Conditioning
The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature, influences the value of C.O.P.

Less
Equally
Unpredictable
More

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Refrigeration and Air Conditioning
As relative humidity decreases, the dew point temperature will be ___ wet bulb temperature.

Lower than
Higher than
None of the listed here
Same as

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Refrigeration and Air Conditioning
During cooling and dehumidification, dry bulb temperature

None of these
Increases
Remains constant
Decreases

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Refrigeration and Air Conditioning
The C.O.P. of a heat pump working on a reversed Carnot cycle is

T₂/(T₂ - T₁)
T₁/(T₂ - T₁)
(T₁ - T₂)/T₁
(T₂ - T₁)/T₁

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MORE MCQ ON Refrigeration and Air Conditioning

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