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37.

The capacity of compressor will be highest when its intake temperature is

A.	lowest	B.	highest
C.	anything.	D.	atmospheric

38.

The clearance volume of the air compressor is kept minimum because

A.	it allows maximum compression to be achieved	B.	it greatly affects volumetric efficiency
C.	it results in minimum work	D.	it permits isothermal compression

39.

The compressor capacity with decrease in suction temperature

A.	increases	B.	decreases
C.	remains unaffected	D.	may increase or decrease depending on compressor capacity

40.

The compressor efficiency is the

A.	isothermal H.P/indicated H.R	B.	isothermal H.P./shaft H.R
C.	total output/air input	D.	compression work/motor input

41.

The compressor performance at higher altitude compared to sea level will be

A.	same	B.	higher
C.	lower	D.	dependent on other factors

42.

The criterion of the thermodynamic efficiency for rotary compressor is

A.	isentropic compression	B.	isothermal compression
C.	polytropic compression	D.	any one of the above

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