Welding Quiz Question with Answer


11. Which of the following is false regarding welding process and its corresponding minimum thickness of plate material?

  1. Shielded-Metal Arc or Stick Weldments: minimum thickness - 1.5 mm
  2. Submerged Arc Weldments: minimum thickness - 4.5mm
  3. Flux-Cored Weldments: minimum thickness - 4.5 mm
  4. Gas-Metal Arc Weldments: minimum thickness - 0.5 mm and even thinner

12. Which of the following welding process is used for welding of sheet metals in automobile and air craft industries?

  1. Shield metal arc welding
  2. Gas tungsten arc welding
  3. Thermit welding
  4. Resistance welding

13. Heat is created by the chemical reaction in

  1. Resistance welding
  2. Oxy-acetylene welding
  3. Tungsten arc welding
  4. Thermit welding

14. Which of the processes can be classified as solid state welding?

  1. Oxyfuel welding
  2. Electron beam welding
  3. Diffusion welding
  4. Resistance welding

15. Which flame is suitable for welding of ferrous metals, Cu and Al alloys?

  1. Oxidising flame
  2. Carburising flame
  3. Neutral flame
  4. None of the above

16. Which flame is suitable for cutting operations?

  1. Oxidising flame
  2. Carburising flame
  3. Neutral flame
  4. None of the above

17. Which flame is suitable for welding of non ferrous metals (brasses and bronzes)?

  1. Oxidising flame
  2. Carburising flame
  3. Neutral flame
  4. None of the above

18. Which flame is suitable for welding steel?

  1. Oxidising flame
  2. Carburising flame
  3. Neutral flame
  4. None of the above

19. Which of the following is false regarding material to be welded and its corresponding welding process?

  1. high-carbon steel - shielded-metal arc, flux-cored arc, and submerged arc welding
  2. higher-alloy steels - GMAW and GTAW welding
  3. Stainless steel - GTAW, GMAW and shielded-metal arc welding
  4. Aluminium alloys - GMAW or GTAW process

20. Which of the following is not true for gas welding?

  1. Heat effected zone and distortion are less as compare to arc welding
  2. It is suitable for thin sheets
  3. It is slower than arc welding
  4. There are safety problems in storing and handling the gases

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