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  • Question
  • An eutectoid steel consists of


  • Options
  • A. wholly pearlite
  • B. wholly austenite
  • C. pearlite and ferrite
  • D. pearlite and cementite

  • Correct Answer
  • wholly pearlite 


  • Engineering Materials problems


    Search Results


    • 1. The material in which the atoms are arranged regularly in some directions but not in others, is called

    • Options
    • A. amorphous material
    • B. mesomorphous material
    • C. crystalline material
    • D. none of these
    • Discuss
    • 2. When the steel is normalised, its

    • Options
    • A. yield point increases
    • B. ductility decreases
    • C. ultimate tensile strength increases
    • D. all of these
    • Discuss
    • 3. Haematite iron ore contains iron about

    • Options
    • A. 30%
    • B. 45%
    • C. 55%
    • D. 70%
    • Discuss
    • 4. Smelting is the process of

    • Options
    • A. removing the impurities like clay, sand etc. from the iron ore by washing with water
    • B. expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns
    • C. reducing the ore with carbon in the presence of a flux
    • D. all of the above
    • Discuss
    • 5. Dye penetrant method is generally used to locate

    • Options
    • A. core defects
    • B. surface defects
    • C. superficial defects
    • D. temporary defects
    • Discuss
    • 6. White cast iron has a high tensile strength and a low compressive strength.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 7. The lower critical point for all steels is

    • Options
    • A. 600°C
    • B. 700°C
    • C. 723°C
    • D. 913°C
    • Discuss
    • 8. Iron ore is, usually, found in the form of

    • Options
    • A. oxides
    • B. carbonates
    • C. sulphides
    • D. all of these
    • Discuss
    • 9. The ability of a material to absorb energy in the plastic range is called

    • Options
    • A. resilience
    • B. creep
    • C. fatigue strength
    • D. toughness
    • Discuss
    • 10. The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is

    • Options
    • A. chromium
    • B. nickel
    • C. vanadium
    • D. cobalt
    • Discuss


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