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  1. Shock resistance of steel is increased by adding

  2. A.
    nickel
    B.
    chromium
    C.
    nickel and chromium
    D.
    sulphur, lead and phosphorus

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  3. In low carbon steels, __________ raises the yield point and improves the resistance to atmospheric corrosion.

  4. A.
    sulphur
    B.
    phosphorus
    C.
    manganese
    D.
    silicon

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  5. A steel containing 16 to 18% chromium and about 0.12% carbon is called

  6. A.
    ferritic stainless steel
    B.
    austenitic stainless steel
    C.
    martensitic stainless steel
    D.
    nickel steel

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  7. The alloy, mainly used for corrosion resistance in stainless steels is

  8. A.
    silicon
    B.
    manganese
    C.
    carbon
    D.
    chromium

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  9. The temperature required for full annealing in hyper-eutectoid steel is

  10. A.
    30° C to 50° C above upper critical temperature
    B.
    30° C to 50° C below upper critical temperature
    C.
    30° C to 50° C above lower critical temperature
    D.
    30° C to 50° C below lower critical temperature

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  11. Which of the following metal shrinks most from molten state to solid state?

  12. A.
    Cast iron
    B.
    Cast steel
    C.
    Brass
    D.
    Admirality metal

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  13. A steel containing ferrite and pearlite is

  14. A.
    hard
    B.
    soft
    C.
    tough
    D.
    hard and tough

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  15. The defect which takes place due to imperfect packing of atoms during crystallisation is known as

  16. A.
    line defect
    B.
    surface defect
    C.
    point defect
    D.
    none of these

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  17. The upper critical point varies according to the carbon content in steel.

  18. A.
    True
    B.
    False

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  19. A coarse grained steel

  20. A.
    is less tough and has a greater tendency to distort during heat treatment
    B.
    is more ductile and has a less tendency to distort during heat treatment
    C.
    is less tough and has a less tendency to distort during heat treatment
    D.
    is more ductile and has a greater tendency to distort during heat treatment

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