Q. The basic principle of the rocket propulsion is the same as that of jet propulsion.

View solution

Q. In a centrifugal compressor, the flow of air is __________ to the axis of compressor.

View solution

Q. The volume of air delivered in a medium capacity air compressor per unit time is

View solution

Q. In a closed cycle gas turbine, the air is compressed

View solution

Q. In a single stage, single acting reciprocating air compressor, without clearance volume, the workdone is minimum during

View solution

Q. A simple turbo-jet engine is basically a gas turbine engine equipped with a propulsive nozzle and diffuser.

View solution

Q. If the flow of air through the compressor is parallel to its axis, then the compressor is

View solution

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