Welding MCQ Questions and Answers Quiz

31. Which of the following joint have high corrosion resistance?

  1. Welding joint
  2. Riveted joint
  3. Bolted joint
  4. None of the above

32. Which of the following is a design recommendation for welding?

  1. Welded assemblies should have more parts
  2. Welding should be done horizontally, with the stick or electrode holder pointing upward during welding
  3. The buildup of weld fillets should be kept to a minimum
  4. Locate welds where special finishing operations are required

33. Which of the following processes do not use flux during welding?

  1. Submerged Arc
  2. Oxyfuel
  3. Flux Cored Arc
  4. Friction

34. Which of the following is not a resistance welding?

  1. Spot welding
  2. Butt welding
  3. Pressure welding
  4. Percussion welding

35. The resistance welding process suitable for welding ferrous and non-ferrous metals upto 8mm thickness is

  1. Spot welding
  2. Projection welding
  3. Butt welding
  4. Pressure welding

36. 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

37. 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

38. Heat is created by the chemical reaction in

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

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

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

40. 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
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MCQ Multiple Choice Questions and Answers on Welding

Welding Question and Answer