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In a turbo jet engine, subsequent to heat addition to compressed air, to get the power output, the working substance is expanded in

A. Exit nozzle, which is a constant volume process

B. Exit nozzle, which is essentially an isentropic process

C. Turbine blades, which is a constant volume process

D. Turbine blades, which is essentially an isentropic process

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  1. In air compressors, free air delivery means the
  2. Inter cooling in compressors
  3. Ramjet engine
  4. The area of actual indicator diagram on an air compressor as compared to area of ideal indicator diagram…
  5. The efficiency of roots blower ________ with the increase in pressure ratio.
  6. Ratio of compression is the ratio of
  7. A closed cycle gas turbine gives ________ efficiency as compared to an open cycle gas turbine.
  8. The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio)
  9. The temperature of air at the beginning of the compression stroke is ________ the atmospheric temperature.
  10. The ratio of workdone per cycle to the stroke volume of the compressor is known as
  11. Water gas is produced by
  12. Gas turbines use following type of air compressor
  13. Choose the correct statement
  14. In a single acting reciprocating air compressor, without clearance, the compression of air may be
  15. The capacity of a compressor is 5 m /min refers to
  16. In multistage compressor, the isothermal compression is achieved by
  17. The most efficient method of compressing air is to compress it
  18. The compressed air may be used
  19. The following property is most important for material used for gas turbine blade
  20. The power available for takeoff and climb in case of turbojet engine as compared to reciprocating engine…
  21. Water is injected in gas turbine cycle to
  22. In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to
  23. In jet engines the products of combustion after passing through the gas turbine are discharged into
  24. The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation
  25. To avoid moisture troubles, the branch connections from compressed air lines should be taken from
  26. The ratio of the indicated power to the shaft power or brake power of the motor or engine required to…
  27. In axial flow compressor, exit flow angle deviation from the blade angle is a function of
  28. If p₁, is the pressure of air entering the L.P. cylinder and p₂ is the pressure of air…
  29. The thrust of a jet propulsion power unit can be increased by
  30. Ratio of indicated h.p. to shaft h.p. in known as