Q. A regenerator in a gas turbine improves thermal efficiency.

View solution

Q. The ratio of the discharge pressure to the inlet pressure of air is called

View solution

Q. The free air delivery is the volume of air that can be delivered by a compressor freely.

View solution

Q. In a two stage reciprocating compressor with intercooler, the amount of work saved with incomplete intercooling is __________ that in case of complete intercooling.

View solution

Q. Reheating in a multi-stage expansion gas turbine __________ compressor work.

View solution

Q. The volumetric efficiency of a compressor

View solution

Q. The efficiency of the vane blower is (where W1 = Workdone due to compression, and W2 = Workdone due to back flow)

View solution

Q. For perfect intercooling in a two stage compressor,

View solution

Q. The volume of air sucked by the compressor during its suction stroke is called

View solution

Q. Volumetric efficiency of a compressor decreases with __________ in compression ratio.

View solution

Q. If the clearance ratio for a reciprocating air compressor is 'K', then its volumetric efficiency is given by

View solution

Q. A compressor must be driven by some prime mover.

View solution

Q. A centrifugal compressor is an axial flow compressor.

View solution

Q. The volumetric efficiency of the compressor is defined as the ratio of volume of free air delivery per stroke to the swept volume of the piston.

View solution

Q. The thrust of a jet propulsion power unit can be increased by

View solution

Q. For minimum work in multi-stage compression, the workdone on all stages should be equal.

View solution

Q. The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is

View solution

Q. The mean effective pressure of the compressor is the

View solution

Q. A compressor at high altitudes will require __________ power.

View solution

Q. The degree of reaction is usually kept __________ for all types of axial flow compressors.

View solution