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Which of the following statement is correct?

A. The ratio of the discharge pressure to the inlet pressure of air is called compressor efficiency

B. The compression ratio for the compressor is always greater than unity

C. The compressor capacity is the ratio of workdone per cycle to the stroke volume

D. During isothermal compression of air, the workdone in a compressor is maximum

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  2. 1 m of air at atmospheric condition weighs approximately
  3. Rotary compressors are suitable for
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  11. A jet engine works on the principle of conservation of
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  14. In an axial flow compressor, the ratio of pressure in the rotor blades to the pressure rise in the compressor…
  15. Stalling of blades in axial flow compressor is the phenomenon of
  16. The efficiency and work ratio of a gas turbine plant can be increased by
  17. The ratio of the volume of free air delivery per stroke to the swept volume of the piston, is known…
  18. The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of
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  20. The capacity of compressor will be highest when its intake temperature is
  21. For perfect intercooling in a two stage compressor
  22. Ratio of indicated H.P. and brake H.P. is known as
  23. The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is
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  25. Euler's equation is applicable for
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  27. The closed cycle in gas turbines
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