Compressors, Gas Dynamics and Gas Turbines - Data Intensity 2

26.	The type of rotary compressor used in aeroplanes, is of

	A.	centrifugal type
	B.	axial flow type
	C.	radial flow type
	D.	none of these

27.	In a reciprocating air compressor, the compression work per kg of air

	A.	increases as clearance volume increases
	B.	decreases as clearance volume increases
	C.	is independent of clearance volume
	D.	increases as clearance volume decreases

28.	The degree of reaction in an axial flow compressor is defined as the ratio of static enthalpy rise in the

	A.	rotor to static enthalpy rise in the stator
	B.	stator to static enthalpy rise in the rotor
	C.	rotor to static enthalpy rise in the stage
	D.	stator to static enthalpy rise in the stage

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