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  1. A material is capable of resisting softening at high temperature, because of its property termed as

  2. A.
    hot temper
    B.
    hot hardness
    C.
    fatigue
    D.
    creep

  3. Cascade control is

  4. A.
    the continuous adjustment of the set point index of an automatic control loop by a primary (master) controller.
    B.
    used when changes in process conditions cause serious upsets in the controlled variable.
    C.
    useful to control flow from temperature.
    D.
    all 'a', 'b' & 'c'.

  5. Softening of hardned steel is done by its

  6. A.
    normalising
    B.
    tempering
    C.
    annealing
    D.
    carburising

  7. Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about

  8. A.
    9:1
    B.
    17 : 1
    C.
    23 : 1
    D.
    29 : 1

  9. Which of the following alloying elements is present in maximum percentage in high speed steel.

  10. A.
    Molybdenum
    B.
    Chromium
    C.
    Tungsten
    D.
    Vanadium

  11. __________ is a non volatile film forming constituent of a paint.

  12. A.
    Thinner
    B.
    Dryer
    C.
    Drying oil
    D.
    none of these

  13. According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.

  14. A.
    0.5
    B.
    2
    C.
    2
    D.
    3/2

  15. Transformer cores are normally made from

  16. A.
    soft ferrites
    B.
    high purity iron
    C.
    grain oriented Fe-Si alloy
    D.
    Al-Ni-Co alloy

  17. __________ test is the appropriate test to determine whether a material is ductile or brittle.

  18. A.
    Impact
    B.
    Cupping
    C.
    Hardness
    D.
    Tensile

  19. Main constituent of bone ash is

  20. A.
    ammonium phosphate.
    B.
    calcium phosphate.
    C.
    animal charcoal.
    D.
    ammonium sulphate.