Q. The minimum work required for a three stage reciprocating air compressor is __________ the work required for each stage.

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Q. For a multi-stage compressor, the polytropic efficiency is constant throughout for all the stages.

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Q. In a high pressure compressor, the delivery pressure is

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Q. When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades are said to be

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Q. Standard air is the air at __________ and relative humidity of 36 percent.

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

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Q. The compressor capacity is defined as the

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Q. The operation of the reciprocating air motor is similar to reciprocating air compressor.

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Q. In axial flow compressors, the flow of air is parallel to the axis of compressor.

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Q. The ratio of the isothermal power to the shaft power or brake power of the motor or engine required to drive the compressor is called overall isothermal efficiency.

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Q. In a double acting compressor, the air is compressed

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

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

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

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

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

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

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

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

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

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