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Home ‣ Mechanical Engineering ‣ Compressors, Gas Dynamics and Gas Turbines Comments
  • Question

  • Intercooling in gas turbines


  • Options
  • A. decreases net output but increases thermal efficiency
  • B. increases net output but decreases thermal efficiency
  • C. decreases net output and thermal efficiency both
  • D. increases net output and thermal efficiency both

  • Correct Answer
  • increases net output but decreases thermal efficiency 

    • Compressors, Gas Dynamics and Gas Turbines problems

    Search Results

    • 1. A large clearance Volume in a reciprocating compressor results in

    • Options
    • A. reduced volume flow rate
    • B. increased volume flow rate
    • C. lower suction pressure
    • D. lower delivery pressure
      • Discuss
    • 2. An axial compressor gives optimum performance at high speeds and large volume flows.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 3. The capacity of a compressor is expressed in

    • Options
    • A. kg/m2
    • B. kg/m3
    • C. m3/min
    • D. m3/kg
      • Discuss
    • 4. The type of rotary compressor used in gas turbines, is of

    • Options
    • A. centrifugal type
    • B. axial flow type
    • C. radial flow type
    • D. none of these
      • Discuss
    • 5. Rotary compressors are used for delivering

    • Options
    • A. small quantities of air at high pressures
    • B. large quantities of air at high pressures
    • C. small quantities of air at low pressures
    • D. large quantities of air at low pressures
      • Discuss
    • 6. The rotary compressors are suitable for large discharge of air at low pressure.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. The ratio of the volume of free air delivery per stroke to the swept volume of the piston, is known as

    • Options
    • A. compressor efficiency
    • B. volumetric efficiency
    • C. isothermal efficiency
    • D. mechanical efficiency
      • Discuss
    • 8. The heat transfer by conduction through a thick sphere is given by

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 9. The wet bulb temperature during sensible heating of air

    • Options
    • A. remains constant
    • B. increases
    • C. decreases
      • Discuss
    • 10. During sensible cooling of air __________ decreases.

    • Options
    • A. wet bulb temperature
    • B. relative humidity
    • C. dry bulb temperature
    • D. specific humidity
      • Discuss

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