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  • Question

  • Vanadium when added to steel


  • Options
  • A. increases tensile strength
  • B. decreases tensile strength
  • C. raises critical temperature
  • D. Sowers critical temperature

  • Correct Answer
  • increases tensile strength 

    • Engineering Materials problems

    Search Results

    • 1. A steel with 0.8% carbon and 100% pearlite is called

    • Options
    • A. eutectoid steel
    • B. hypo-eutectoid steel
    • C. hyper-eutectoid steel
    • D. none of these
      • Discuss
    • 2. Killed steels

    • Options
    • A. have minimum impurity level
    • B. are produced by L-D process
    • C. have almost zero percentage of phosphorus and sulphur
    • D. are free from oxygen
      • Discuss
    • 3. Micro-structure of a material is, generally, examined by

    • Options
    • A. naked eye
    • B. optical microscope
    • C. X-ray techniques
    • D. none of these
      • Discuss
    • 4. The phosphorus and sulphur in steel making can be removed by using basic bessemer process.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 5. Which one of the following sets of constituents is expected in equilibrium cooling of a hyper-eutectoid steel from austenitic state?

    • Options
    • A. Ferrite and pearlite
    • B. Cementite and pearlite
    • C. Ferrite and bainite
    • D. Cementite and martensite
      • Discuss
    • 6. Steel containing 0.8 to 1.5% carbon, is known as

    • Options
    • A. mild steel
    • B. dead mild steel
    • C. medium carbon steel
    • D. high carbon steel
      • Discuss
    • 7. The addition of magnesium to cast iron increases its

    • Options
    • A. hardness
    • B. ductility and strength in tension
    • C. corrosion resistance
    • D. creep strength
      • Discuss
    • 8. The catalysts are used to accelerate the chemical reaction during the process of ploymerisation of plastics.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. In spot welding, the spacing between two spot weld should not be less than

    • Options
    • A. d
    • B. 1.5 d
    • C. 3 d
    • D. 6 d
      • Discuss
    • 10. When the weld is made from left to right, it is known as back-hand welding.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss

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