Refrigeration and Air Conditioning
The reciprocating refrigerant compressors are very suitable for

Large displacements and low condensing pressures
Large displacements and high condensing pressures
Small displacements and low condensing pressures
Small displacements and high condensing pressures

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Refrigeration and Air Conditioning
In a bootstrap air evaporative cooling system, the evaporator is provided

Between the secondary compressor and the second heat exchanger
Between the second heat exchanger and the cooling turbine
Between the combustion chamber and the first heat exchanger
Between the first heat exchanger and the secondary compressor

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Refrigeration and Air Conditioning
Which of the following statement is wrong?

The value of C.O.P. is always greater than one
None of the listed here
The space between the saturated liquid line and saturated vapour line, in a pressure enthalpy chart, is wet vapour region
In a vapour compression system, the condition of refrigerant before entering the compressor is dry saturated vapour

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