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  • Question
  • In a centrifugal casting method


  • Options
  • A. core is made of sand
  • B. core is made of ferrous metal
  • C. core is made of non-ferrous metal
  • D. no core is used

  • Correct Answer
  • no core is used 


  • Workshop Technology problems


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    • 1. In a bilateral system of tolerance, the tolerance is allowed on

    • Options
    • A. one side of the actual size
    • B. one side of the nominal size
    • C. both sides of the actual size
    • D. both sides of the nominal size
    • Discuss
    • 2. The centrifugal casting method, is used for casting articles of

    • Options
    • A. symmetrical shape about vertical axis
    • B. symmetrical shape about horizontal axis
    • C. irregular shape
    • D. non-ferrous metal only
    • Discuss
    • 3. A taper provided on the pattern for its easy and clean withdrawl from the mould is known as

    • Options
    • A. machining allowance
    • B. draft allowance
    • C. shrinkage allowance
    • D. distortion allowance
    • Discuss
    • 4. The draft or taper allowance on casting is generally

    • Options
    • A. 1 to 2 mm/m
    • B. 2 to 5 mm/m
    • C. 5 to 10 mm/m
    • D. 10 to 15 mm/m
    • Discuss
    • 5. Metal patterns are used for

    • Options
    • A. small castings
    • B. large castings
    • C. complicated castings
    • D. large scale production of castings
    • Discuss
    • 6. The temperature of oxy-hydrogen flame is __________ oxy-acetylene flame.

    • Options
    • A. same as
    • B. less than
    • C. more than
    • Discuss
    • 7. Thread rolling is restricted to

    • Options
    • A. ferrous materials
    • B. ductile materials
    • C. hard materials
    • D. none of these
    • Discuss
    • 8. In a die casting method, the molten metal is forced into mould under high pressure.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 9. The machining allowance provided on patterns depends upon

    • Options
    • A. type of casting metal
    • B. size and shape of casting
    • C. method of casting used
    • D. all of these
    • Discuss
    • 10. The cold chisels are made by

    • Options
    • A. drawing
    • B. rolling
    • C. piercing
    • D. forging
    • Discuss


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