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

  • If p1 is the pressure of air entering the L.P, cylinder and p3 is the pressure of air leaving the H.P. cylinder, then the ratio of cylinder diameters for a single acting, two stage reciprocating compressor with complete intercooling is given by


  • Options
  • A. D1/D2 = (p1p3)1/2
  • B. D1/D2 = (p1/p3)1/4
  • C. D1/D2 = (p1p3)1/4
  • D. D1/D2 = (p3/p1)1/4

  • Correct Answer
  • D1/D2 = (p3/p1)1/4 

    • More questions

    • 1. Cemented carbide tools are generally poor in shear.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 2. Hot piercing is extensively used for making bolts and nuts.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 3. A Francis turbine is an outward flow reaction turbine.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The negative acceleration is called retardation.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. When the spring of a watch is wound, it will possess

    • Options
    • A. strain energy
    • B. kinetic energy
    • C. heat energy
    • D. electrical energy
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    • 6. An alloy of copper, tin and zinc is known as

    • Options
    • A. brass
    • B. bronze
    • C. gun metal
    • D. muntz metal
      • Discuss
    • 7. In electro-chemical machining, the gap between the tool and work is kept as

    • Options
    • A. 0.1 mm
    • B. 0.25 mm
    • C. 0.4 mm
    • D. 0.75 mm
      • Discuss
    • 8. The pressure of steam at throat of a steam nozzle is called critical pressure.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 9. Which part of the automobile tyre is subjected to greatest flexing action?

    • Options
    • A. Bead
    • B. Side wall
    • C. Shoulder
    • D. Tread
      • Discuss
    • 10. Tension in the cable supporting a lift is more when the lift is moving __________ with an acceleration.

    • Options
    • A. upwards
    • B. downwards
      • Discuss

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