Design of Machine Elements MCQs with answers Page - 5

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Q. Which type of welding is generally used in automobile sector?

  • (A) electric arc welding
  • (B) electric resistance welding
  • (C) gas welding
  • (D) forge welding

A

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Q. Hard peening is

  • (A) hammering the weld across the length while the joint is hot
  • (B) hammering the weld along the length while the joint is hot
  • (C) hammering the weld along the length while the joint is cold
  • (D) hammering the weld across the length while the joint is cold

A

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Q. A rivet is specified as a 20mm rivet. What does it mean?

  • (A) none of the mentioned
  • (B) shank dia 20mm
  • (C) head dia 20mm
  • (D) both head and shank dia 20mm

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Q. In hand riveting die is a part of hammer.

  • (A) true
  • (B) false
  • (C) ---
  • (D) ---

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Q. The amount by which the two rods to be joined are drawn together is called as?

  • (A) draw
  • (B) portray
  • (C) lead
  • (D) pitch

A

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Q. Two steel rods connected by cotter joint are subjected to 50 kN load each. What is the minimum diameter required of the rods? (Given: Yielding Stress= 400N/mm² ; Factor of Safety=6)

  • (A) 31mm
  • (B) 35mm
  • (C) 36mm
  • (D) 40mm

A

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Q. Among punching and drilling, which is cheaper?

  • (A) punching
  • (B) drilling
  • (C) equally expensive
  • (D) cannot be determined

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Q. Riveting is not recommended for aluminium alloys.

  • (A) true
  • (B) false
  • (C) ---
  • (D) ---

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Q. In joining steel plate and asbestos, welding is preferred over riveting.

  • (A) true
  • (B) false
  • (C) ---
  • (D) ---

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Q. Quality checking of riveted joint is much expensive than that of welded joint.

  • (A) true
  • (B) false
  • (C) ---
  • (D) ---

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