Design of Machine Elements MCQs with answers Page - 7

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Q. Which of the following are true about plasticity?

  • (A) permanent deformation
  • (B) ability to retain deformation under load or after removal of load
  • (C) plastic deformation is greater than elastic deformation
  • (D) all of the mentioned

A

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Q. Modulus of resilience is defined as

  • (A) strain energy per unit volume
  • (B) strain energy per unit area
  • (C) independent of strain energy
  • (D) none of the mentioned

A

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Q. In gear boxes and small size motors, rolling contact bearings are used.

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

A

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Q. There is problem of alignment in deep groove ball bearings.

  • (A) yes
  • (B) no, it is self-aligning
  • (C) it aligns itself only in some particular cases
  • (D) can’t be determined

A

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Q. Deep groove ball bearing has immense rigidity.

  • (A) true
  • (B) no it has point contact and hence low rigidity
  • (C) it has surface contact
  • (D) it has line contact

A

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Q. Cylindrical load bearing has lower load capacity as compared to deep groove ball bearing.

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

A

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Q. Angular contact bearing can take thrust as well as radial loads.

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

A

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Q. The angular play bearing must be mounted without axial play.

  • (A) yes
  • (B) little tolerance is adjusted
  • (C) little tolerance is necessary
  • (D) can’t be stated

A

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Q. Taper rolling supports

  • (A) axial loads
  • (B) thrust loads
  • (C) both axial and thrust loads
  • (D) none of the mentioned

A

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Q. Which of the following cannot tolerate misalignment?

  • (A) angular contact bearing
  • (B) cylinder roller bearing
  • (C) thrust ball bearings
  • (D) all of the listed

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