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Home ‣ Mechanical Engineering ‣ Hydraulics and Fluid Mechanics See What Others Are Saying!
  • Question

  • An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.


  • Options
  • A. free
  • B. partially
  • C. full

  • Correct Answer
  • full 

    • More questions

    • 1. The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which each constituent would exert, if it occupied the same space by itself. This statement is called

    • Options
    • A. Kinetic theory of gases
    • B. Newton's law of gases
    • C. Dalton's law of partial pressures
    • D. Avogadro's hypothesis
      • Discuss
    • 2. In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is

    • Options
    • A. 50
    • B. 100
    • C. 150
    • D. 200
      • Discuss
    • 3. A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is

    • Options
    • A. 2.89 kN
    • B. 8.29 kN
    • C. 9.28 kN
    • D. 28.9 kN
      • Discuss
    • 4. Positive camber is used to compensate for wheels tilting inward due to the weight of the vehicle.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 5. Locomotive boiler produces steam at a very high rate.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 6. The leakage in a refrigeration system using ammonia is detected by

    • Options
    • A. halide torch
    • B. sulphur sticks
    • C. soap and water
    • D. all of these
      • Discuss
    • 7. The oxidising flame is similar to neutral flame but the inner cone is less luminous and shorter.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 8. If the sand is too fine, its permeability will be high.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. When the nozzle operates with the maximum mass flow, the nozzle is said to be

    • Options
    • A. choked
    • B. underdamping
    • C. overdamping
    • D. none of these
      • Discuss
    • 10. In a footstep bearing, if the speed of the shaft is doubled, then the torque required to overcome the viscous resistance will be

    • Options
    • A. double
    • B. four times
    • C. eight times
    • D. sixteen times
      • Discuss

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