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Home ‣ Mechanical Engineering ‣ Hydraulic Machines See What Others Are Saying!
  • Question

  • The ratio of quantity of liquid discharged per second from the pump to the quantity of liquid passing per second through the impeller is known as


  • Options
  • A. manometric efficiency
  • B. mechanical efficiency
  • C. overall efficiency
  • D. volumetric efficiency

  • Correct Answer
  • volumetric efficiency 

    • More questions

    • 1. In corrosion resistant properties, bronzes are __________ to brasses.

    • Options
    • A. superior
    • B. inferior
      • Discuss
    • 2. The tool life, in case of continuous cutting, is much better than intermittent cutting.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 3. The thermodynamic cycle on which the petrol engine works, is

    • Options
    • A. Otto cycle
    • B. Joule cycle
    • C. Rankine cycle
    • D. Stirling cycle
      • Discuss
    • 4. The cold chisels are made by

    • Options
    • A. drawing
    • B. rolling
    • C. piercing
    • D. forging
      • Discuss
    • 5. When a body of mass moment of inertia I (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is

    • Options
    • A. I?
    • B. I?2
    • C. 0.5I?
    • D. 0.5I?2
      • Discuss
    • 6. The periodic time of a particle with simple harmonic motion is __________ proportional to the angular velocity.

    • Options
    • A. directly
    • B. inversely
      • Discuss
    • 7. In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is __________ the lowpressure cylinder.

    • Options
    • A. equal to
    • B. less than
    • C. more than
      • Discuss
    • 8. The ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body. This statement is known as

    • Options
    • A. Wien's law
    • B. Stefan's law
    • C. Kirchhoff's law
    • D. Planck's law
      • Discuss
    • 9. A single point tool has

    • Options
    • A. rake angle
    • B. cutting angle
    • C. lip angle
    • D. all of these
      • Discuss
    • 10. A Tandem type compound engine requires a larger flywheel.

    • Options
    • A. True
    • B. False
      • Discuss

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