Q. A machine used to raise the pressure of air is called

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Q. The overall efficiency of the compressed air system is the

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Q. In a jet engine, the compression varies as the square of the speed.

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Q. In a single acting reciprocating air compressor, without clearance, the compression of air may be

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Q. Which of the following statement is correct?

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Q. Slip factor in a centrifugal compressor indicates the amount of air leaked from the storage vessel.

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Q. The ratio of the isentropic work to the Euler's work is known as pressure coefficient.

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Q. A turbo-prop is preferred to turbo-jet because

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Q. The air power of the compressor is also known as

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Q. A 3 m³/min compressor means that it

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Q. The compression ratio for the compressor is always __________ unity.

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Q. The assumption made in two stage compression with intercooler is that

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Q. With the decrease in compression ratio, the volumetric efficiency

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Q. For minimum work required to compress and deliver a quantity of air by multi-stage compression,

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Q. Separators are generally used in air compressor installations

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Q. If the flow of air through the compressor is perpendicular to its axis, then it is a

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Q. In air compressors, free air delivery means the

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Q. The overall isothermal efficiency of the compressor is defined as the ratio of

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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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