Refrigeration and Air Conditioning
If a gas is to be liquefied, its temperature must be

Reduced to a value below its critical temperature
Equal to critical temperature
Increased to a value above its critical temperature
None of these

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP