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REFRIGERATION AND AIR CONDITIONING

Refrigeration and Air Conditioning
An important characteristic of absorption system of refrigeration is

very little power consumption
cooling below 0°C
quiet operation
noisy operation

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Refrigeration and Air Conditioning
The evaporator used in household refrigerators is

Non-frosting evaporator
None of these
Frosting evaporator
Defrosting evaporator

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Refrigeration and Air Conditioning
Chaperon equation is a relation between

Temperature, pressure and enthalpy
Specific volume and enthalpy
Temperature and enthalpy
Temperature, pressure, specific volume and enthalpy

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Refrigeration and Air Conditioning
If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be

More
Less
Same
More/less depending on rating

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Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is saturated liquid

Before passing through the condenser
Before entering the expansion valve
After passing through the condenser
After passing through the expansion throttle valve

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