For supplying intermittent small quantity of air at high pressure, following compressor is best suited

A. Centrifugal

B. Reciprocating

C. Axial

D. Screw

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  1. Which of the following statement is correct?
  2. 1 m of air at atmospheric condition weighs approximately
  3. In a turbo jet engine, subsequent to heat addition to compressed air, to get the power output, the working…
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  5. For perfect intercooling in a three stage compressor
  6. Ram compression in turbojet involves
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  8. The inlet pressure is always ________ the discharge pressure.
  9. The efficiency of jet engine is
  10. Volumetric efficiency is
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  12. Euler's equation is applicable for
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  14. The most efficient method of compressing air is to compress it
  15. Reheating in a multistage expansion gas turbine __________ compressor work.
  16. In jet propulsion power unit, the inlet duct of diverging shape is used in order to
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  18. The compressor capacity is defined as the
  19. The compression ratio in a gas turbine is of the order of
  20. In a jet propulsion unit, the products of combustion after passing through the gas turbine are discharged…
  21. The temperature of air at the beginning of the compression stroke is ________ the atmospheric temperature.
  22. Gas turbine blades are given a rake
  23. The minimum work required for a three stage reciprocating air compressor is ________ the work required…
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  26. The following property is most important for material used for gas turbine blade
  27. As the turbine inlet temperature increases, the thermal efficiency of gas turbine for the optimum pressure…
  28. Which is false statement about air receivers?
  29. The degree of reaction in an axial flow compressor is defined as the ratio of static enthalpy rise in…
  30. The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation