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  • Question
  • In TIG arc welding, the welding zone is shielded by an atmosphere of


  • Options
  • A. helium gas
  • B. argon gas
  • C. either (a) or (b)
  • D. none of these

  • Correct Answer
  • either (a) or (b) 


  • Workshop Technology problems


    Search Results


    • 1. The mode of deformation of the metal during spinning is

    • Options
    • A. bending
    • B. stretching
    • C. rolling and stretching
    • D. bending and stretching
    • Discuss
    • 2. The operation of cutting of a flat sheet to the desired shape is called

    • Options
    • A. shearing
    • B. piercing
    • C. punching
    • D. blanking
    • Discuss
    • 3. In a gas welding of mild steel using an oxy-acetylene flame, the total amount of acetylene consumed is 10 litre. The oxygen consumption from the cylinder is

    • Options
    • A. 5 litre
    • B. 10 litre
    • C. 15 litre
    • D. 20 litre
    • Discuss
    • 4. Which of the following welding method uses a pool of molten metal?

    • Options
    • A. Carbon arc welding
    • B. Submerged arc welding
    • C. TIG arc welding
    • D. MIG arc welding
    • Discuss
    • 5. When a pattern is made in three parts, the top part, is known as a

    • Options
    • A. drag
    • B. cheek
    • C. cope
    • D. none of these
    • Discuss
    • 6. Cold working distorts grain structure and does not provide an appreciable reduction in size.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 7. Hot piercing is extensively used for making bolts and nuts.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 8. The hot working of metals is carried out

    • Options
    • A. at the recrystallisation temperature
    • B. below the recrystallisation temperature
    • C. above the recrystallisation temperature
    • D. at any temperature
    • Discuss
    • 9. Swab is used for

    • Options
    • A. smoothing and cleaning out depressions in the mould
    • B. cleaning the moulding sand
    • C. moistening the sand around the edge before removing pattern
    • D. reinforcement of sand in the top part of the moulding box
    • Discuss
    • 10. The welding process used in joining mild steel shanks to high speed drills, is

    • Options
    • A. spot welding
    • B. seam welding
    • C. flash butt welding
    • D. upset butt welding
    • Discuss


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