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Mechanical Engineering :: Basic Mechanical Engineering

  1. The refrigerant used in vapour absorption refrigeration
  2. A.
    Freon-12
    B.
    ammonia
    C.
    CO2
    D.
    Aqua-ammonia

  3. The part which provides simple harmonic to the D-slide valce of a steam engine is called
  4. A.
    eccentric rod
    B.
    valve rod
    C.
    piston rod
    D.
    fly wheel

  5. Which one of the following is spring loaded type
  6. A.
    Watt governor
    B.
    Hartnel governor
    C.
    Porter governor
    D.
    Propel governor

  7. Air fule ratio in a jet engine is
  8. A.
    10:1
    B.
    40:1
    C.
    60:1
    D.
    90:1

  9. Newton is a unit of
  10. A.
    Mass
    B.
    Momentum
    C.
    Force
    D.
    Energy

  11. Curtis turbine is a
  12. A.
    pressure-compounded turbine
    B.
    velocity-compounded turbine
    C.
    pressure-velocity compounded turbine
    D.
    reaction turbine

  13. A belt can transmit maximum power when the total tension of the drive is
  14. A.
    equal to the centrifugal tension
    B.
    twice the centrifugal tension
    C.
    three times the centrifugal tension
    D.
    four times the centrifugal tension

  15. A process in which no heat is supplied or rejected and entropy is constant is known as
  16. A.
    adiabatic process
    B.
    isentroic process
    C.
    polytropic process
    D.
    isothermal process

  17. The centrifugal tension in belts
  18. A.
    increase power transmission
    B.
    decrease power transmission
    C.
    doubles the power transmission
    D.
    does not affect the power transmission in any way

  19. The tool life is affected to the maximum extent by
  20. A.
    the cutting speed
    B.
    the feed
    C.
    the depth of cut
    D.
    the size of the tool