Design of Machine Elements MCQs with answers Page - 6

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A

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Q. The gears on camshaft and crankshaft are known as

  • (A) lining gears
  • (B) aligning gears
  • (C) timing gears
  • (D) tuning gears

A

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Q. The material known as high carbon high copper chrome silicon cast steel is used for making

  • (A) camshaft
  • (B) cylinder body
  • (C) cylinder head
  • (D) piston

A

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Q. Camshaft gear is made from which material

  • (A) cast iron
  • (B) mild steel
  • (C) bakelite
  • (D) brass

A

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Q. The main reasons for crankshaft wear are

  • (A) different loads at some points of rotation
  • (B) centrifugal forces due to crankshaft rotation
  • (C) misalignment in connecting rod
  • (D) all of the mentioned

A

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Q. The main causes of crankshaft vibration are

  • (A) variation in torque
  • (B) cyclic variation of gas and combustion products
  • (C) unbalanced weight of parts
  • (D) all of the mentioned

A

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Q. In the cam, the distance between the base circle and the nose is called

  • (A) lift
  • (B) lobe
  • (C) flank
  • (D) pitch

A

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Q. The crankshaft rotates the camshaft using

  • (A) belt drive
  • (B) chain drive
  • (C) gear drive
  • (D) motor drive

A

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Q. The crankshaft should be inspected for

  • (A) cracks
  • (B) alignment of crankpins and journals
  • (C) cleanliness of oil gallaries
  • (D) all of the mentioned

A

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Q. A radial bearing supports the load that acts along the axis of the shaft.

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

A

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Q. Sliding contact bearings, also called plain bearings have no problem of wear.

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

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