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MCQs

Total Questions : 2607 | Page 64 of 261 pages
Question 631. The resistance to fatigue of a material is measured by
  1.    elastic limit
  2.    Young's modulus
  3.    ultimate tensile strength
  4.    endurance limit
 Discuss Question
Answer: Option D. -> endurance limit
Answer: (d).endurance limit
Question 632. Failure of a material is called fatigue when it fails
  1.    at the elastic limit
  2.    below the elastic limit
  3.    at the yield point
  4.    below the yield point
 Discuss Question
Answer: Option D. -> below the yield point
Answer: (d).below the yield point
Question 633. The centre to centre distance between two consecutive rivets in a row, is called
  1.    margin
  2.    pitch
  3.    back pitch
  4.    diagonal pitch
 Discuss Question
Answer: Option B. -> pitch
Answer: (b).pitch
Question 634. Which of the following property is essential for spring materials?
  1.    Stiffness
  2.    Ductility
  3.    Resilience
  4.    Plasticity
 Discuss Question
Answer: Option C. -> Resilience
Answer: (c).Resilience
Question 635. The notch sensitivity q is expressed in terms of fatigue stress concentration factor Kf and theoretical stress concentration factor Kt, as
  1.    (Kf + 1)/ (Kt + 1)
  2.    (Kf - 1)/ (Kt - 1)
  3.    (Kt + 1)/ (Kf + 1)
  4.    (Kt - 1)/ (Kf - 1)
 Discuss Question
Answer: Option B. -> (Kf - 1)/ (Kt - 1)
Answer: (b).(Kf - 1)/ (Kt - 1)
Question 636. A bushed pin flexible coupling is used to connect two shafts whose axes intersect at a small angle.
  1.    Yes
  2.    No
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option B. -> No
Answer: (b).No
Question 637. A steel containing upto 0.15% carbon is known as
  1.    mild steel
  2.    dead mild steel
  3.    medium carbon steel
  4.    high carbon steel
 Discuss Question
Answer: Option B. -> dead mild steel
Answer: (b).dead mild steel
Question 638. The V-belt is used to transmit great amount of power and when the two pulleys are very near to each other.
  1.    Correct
  2.    Incorrect
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Correct
Answer: (a).Correct
Question 639. When the fulcrum is in between the load and effort, the lever is said to be of
  1.    first type
  2.    second type
  3.    third type
  4.    any one of these
 Discuss Question
Answer: Option A. -> first type
Answer: (a).first type
Question 640. The ball bearings are, usually, made from
  1.    low carbon steel
  2.    high carbon steel
  3.    medium carbon steel
  4.    high speed steel
 Discuss Question
Answer: Option C. -> medium carbon steel
Answer: (c).medium carbon steel

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