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Home ‣ Mechanical Engineering ‣ Compressors, Gas Dynamics and Gas Turbines See What Others Are Saying!
  • Question

  • Slip factor in a centrifugal compressor indicates the amount of air leaked from the storage vessel.


  • Options
  • A. Yes
  • B. No

  • Correct Answer
  • No 

    • More questions

    • 1. The turbine blades do not change the direction of steam issuing from the nozzle.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. When a low carbon steel is heated upto upper critical temperature

    • Options
    • A. there is no change in grain size
    • B. the average grain size is a minimum
    • C. the grain size increases very rapidly
    • D. the grain size first increases and then decreases very rapidly
      • Discuss
    • 3. Blading efficiency is also known as

    • Options
    • A. stage efficiency
    • B. diagram efficiency
    • C. nozzle efficiency
    • D. none of these
      • Discuss
    • 4. In the torsion equation the term J/R is called

    • Options
    • A. shear modulus
    • B. section modulus
    • C. polar modulus
    • D. none of these
      • Discuss
    • 5. In a single acting reciprocating compressor, the suction, compression and delivery of air takes place in __________ of the piston.

    • Options
    • A. one stroke
    • B. two strokes
    • C. three strokes
    • D. four strokes
      • Discuss
    • 6. Induction hardening is basically a

    • Options
    • A. carburising process
    • B. surface hardening process
    • C. core-hardening process
    • D. none of these
      • Discuss
    • 7. For centrifugal pump impeller, the maximum value of the vane exit angle is

    • Options
    • A. 10° to 15°
    • B. 15° to 20°
    • C. 20° to 25°
    • D. 25° to 30°
      • Discuss
    • 8. Manometric head is the actual head of water against which a centrifugal pump has to work.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 9. The gas in cooling chamber of a closed cycle gas turbine is cooled at

    • Options
    • A. constant volume
    • B. constant temperature
    • C. constant pressure
    • D. none of these
      • Discuss
    • 10. In a psychrometric chart, dew point temperature lines are horizontal and non-uniformly spaced.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss

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