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Workshop Technology problems


  • 1. The electrodes used in spot welding have a tip of

  • Options
  • A. stainless steel
  • B. aluminium
  • C. copper
  • D. brass
  • Discuss
  • 2. The blank diameter used in thread rolling will be

  • Options
  • A. equal to minor diameter of the thread
  • B. equal to pitch diameter of the thread
  • C. a little larger than the minor diameter of the thread
  • D. a little larger than the pitch diameter of the thread
  • Discuss
  • 3. Metal patterns are used for

  • Options
  • A. small castings
  • B. large castings
  • C. complicated castings
  • D. large scale production of castings
  • 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. 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
  • 6. 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
  • 7. 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
  • 8. 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
  • Discuss
  • 9. The temperature of oxy-hydrogen flame is __________ oxy-acetylene flame.

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

  • Options
  • A. ferrous materials
  • B. ductile materials
  • C. hard materials
  • D. none of these
  • Discuss

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