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Rotary compressor is best suited for

A. Large quantity of air at high pressure

B. Small quantity of air at high pressure

C. Small quantity of air at low pressure

D. Large quantity of air at low pressure

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  1. The volumetric efficiency of a compressor
  2. The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation
  3. In open cycle turbojet engines used in military aircraft, reheating the exhaust gas from the turbine…
  4. In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs…
  5. When the temperature of air leaving the intercooler, in a two stage compression with intercooler, is…
  6. If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of…
  7. 1 m of air at atmospheric condition weighs approximately
  8. The material commonly used for air craft gas turbine is
  9. The efficiency of roots blower ________ with the increase in pressure ratio.
  10. An ideal air compressor cycle without clearance on PV diagram can be represented by following processes
  11. The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor…
  12. Axial flow compressor has the following advantage over centrifugal compressor
  13. The work done per unit mass of air in compression will be least when n is equal to
  14. The stagnation pressure rise in a centrifugal compressor takes place
  15. Reheating in a multistage expansion gas turbine __________ compressor work.
  16. A closed cycle gas turbine works on
  17. As the turbine inlet temperature increases, the thermal efficiency of gas turbine for the optimum pressure…
  18. The maximum combustion pressure in gas turbine as compared to I.C. engine is
  19. The inlet pressure is always ________ the discharge pressure.
  20. The volumetric efficiency for reciprocating air compressors is about
  21. In a single stage, single acting reciprocating air compressor, without clearance volume, the workdone…
  22. Isothermal compression efficiency can be attained by running the compressor
  23. Efficiency of gas turbine is increased by
  24. The ratio of work done per cycle to the swept volume in case of compressor is called
  25. When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades…
  26. The volume of air sucked by the compressor during its suction stroke is called
  27. Volumetric efficiency of air compressors is of the order of
  28. Work ratio of a gas turbine may be improved by
  29. In a high pressure compressor, the delivery pressure is
  30. The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio)