Q. The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio)

View solution

Q. The speed of rotary air compressor is __________ as compared to reciprocating air compressor.

View solution

Q. When air is to be compressed at a high pressure, then it is advantageous to use

View solution

Q. The absolute pressure of air at the outlet of a compressor is called

View solution

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

View solution

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

View solution

Q. The mean effective pressure of the compressor is the

View solution

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

View solution

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

View solution

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

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. A centrifugal compressor is an axial flow compressor.

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. For perfect intercooling in a two stage 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. The volumetric efficiency of a compressor

View solution

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

View solution