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Home Mechanical Engineering Thermodynamics See What Others Are Saying!
  • Question
  • The efficiency of a dual combustion cycle __________ upon cut-off ratio.


  • Options
  • A. depends
  • B. does not depend

  • Correct Answer
  • depends 


  • More questions

    • 1. A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy.

    • Options
    • A. coincides with
    • B. lies below
    • C. lies above
    • Discuss
    • 2. The function of antilock brake system (ABS) is that is

    • Options
    • A. reduces the stopping distance
    • B. minimises the brake fade
    • C. maintains directional control during braking by preventing the wheels from locking
    • D. prevents nose dives during braking and thereby postpones locking of the wheels
    • Discuss
    • 3. For evaporators and condensers, for the given conditions, the logarithmic mean temperature difference (tm) for parallel flow is __________ that for counter flow.

    • Options
    • A. equal to
    • B. less than
    • C. greater than
    • Discuss
    • 4. An atom bomb utilises uncontrolled nuclear fission.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. The maximum flame temperature occurs

    • Options
    • A. at the outer cone
    • B. at the inner cone
    • C. between the outer and inner cone
    • D. at the torch tip
    • Discuss
    • 6. The forces, whose lines of action are parallel to each other and act in the same directions, are known as

    • Options
    • A. coplaner concurrent forces
    • B. coplaner non-concurrent forces
    • C. like parallel forces
    • D. unlike parallel forces
    • Discuss
    • 7. The efficiency of reaction turbine is maximum when (where ? = Angle made by the absolute velocity (V) at inlet)

    • Options
    • A. Vb = 0.5 V cos ?
    • B. Vb = V cos ?
    • C. Vb = 0.5 V2 cos ?
    • D. Vb = V2 cos ?
    • Discuss
    • 8. The sequence order of events in a four-stroke engine is

    • Options
    • A. suction - exhaust - power - compression
    • B. suction - power - compression - exhaust
    • C. suction - compression - power - exhaust
    • D. exhaust - compression - power - suction
    • Discuss
    • 9. Shift is a casting defect which

    • Options
    • A. results in a mismatching of the top and bottom parts of a casting
    • B. results in general enlargement of a casting
    • C. occurs near the ingates as rough lumps on the surface of a casting
    • D. occurs as sand patches on the upper surface of a casting
    • Discuss
    • 10. Linde welding uses

    • Options
    • A. neutral flame and right-ward technique
    • B. oxidising flame and left-ward technique
    • C. neutral flame and left-ward technique
    • D. carburising flame and right-ward technique
    • Discuss


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