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MCQs

Total Questions : 2607 | Page 81 of 261 pages
Question 801. The groove angle of the pulley for rope drive is usually
  1.    20°
  2.    35°
  3.    45°
  4.    60°
 Discuss Question
Answer: Option C. -> 45°
Answer: (c).45°
Question 802. The shock absorbing capacity of a bolt may be increased by
  1.    increasing its shank diameter
  2.    decreasing its shank diameter
  3.    tightening the bolt properly
  4.    making the shank diameter equal to core diameter of thread
 Discuss Question
Answer: Option B. -> decreasing its shank diameter
Answer: (b).decreasing its shank diameter
Question 803. A lap joint is always in single shear.
  1.    Yes
  2.    No
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Yes
Answer: (a).Yes
Question 804. According to Indian standard specifications, 100 H6/g5 means that
  1.    tolerance grade for the hole is 6 and for the shaft is 5
  2.    tolerance grade for the shaft is 6 and for the hole is 5
  3.    tolerance grade for the shaft is 4 to 8 and for the hole is 3 to 7
  4.    tolerance grade for the hole is 4 to 8 and for the shaft is 3 to 7
 Discuss Question
Answer: Option A. -> tolerance grade for the hole is 6 and for the shaft is 5
Answer: (a).tolerance grade for the hole is 6 and for the shaft is 5
Question 805. If b denotes the face width and L denotes the cone distance for a bevel gear, then the bevel factor is written as
  1.    b/L
  2.    b/2 L
  3.    1 - 2 b.L
  4.    1 - b/L
 Discuss Question
Answer: Option D. -> 1 - b/L
Answer: (d).1 - b/L
Question 806. The ratio of pitch circle diameter in millimetres to the number of teeth, is called
  1.    circular pitch
  2.    diametral pitch
  3.    module
  4.    none of these
 Discuss Question
Answer: Option C. -> module
Answer: (c).module
Question 807. The design calculations for members subject to fluctuating loads with the same factor of safety, yield the most conservative estimates when using
  1.    Gerber relation
  2.    Soderberg relation
  3.    Good man relation
  4.    none of these
 Discuss Question
Answer: Option C. -> Good man relation
Answer: (c).Good man relation
Question 808. Teflon is used for bearings because of
  1.    low coefficient of friction
  2.    better heat dissipation
  3.    smaller space consideration
  4.    all of these
 Discuss Question
Answer: Option A. -> low coefficient of friction
Answer: (a).low coefficient of friction
Question 809. The acme threads are usually found on
  1.    spindles of bench vices
  2.    railway carriage couplings
  3.    feed mechanism of machine tools
  4.    screw cutting lathes
 Discuss Question
Answer: Option D. -> screw cutting lathes
Answer: (d).screw cutting lathes
Question 810. In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft)
  1.    2 d
  2.    3 d
  3.    4 d
  4.    5 d
 Discuss Question
Answer: Option B. -> 3 d
Answer: (b).3 d

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