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43.

The indicated work per unit mass of air delivered is

A.	directly proportional to clearance volume	B.	greatly affected by clearance volume
C.	not affected by clearance volume	D.	inversely proportional to clearance volume

44.

The net work input required for compressor with increase in clearance volume

A.	increases	B.	decreases
C.	remains same	D.	increases/decreases depending on com-presser capacity

45.

The ratio of isentropic work to Euler work is known as

A.	pressure coefficient	B.	work coefficient
C.	polytropic reaction	D.	slip factor

46.

The ratio of isentropic work to euler's work is known as

A.	compressor efficiency	B.	isentropic efficiency
C.	Euler's efficiency	D.	pressure coefficient

47.

The ratio of outlet whirl velocity to blade velocity in case of centrifugal compressor is called

A.	slip factor	B.	velocity factor
C.	velocity coefficient	D.	blade effectiveness

48.

The ratio of work done per cycle to the swept volume in case of compressor is called

A.	compression index	B.	compression ratio
C.	compressor efficiency	D.	mean effective pressure

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