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MCQs

Total Questions : 2607 | Page 4 of 261 pages
Question 31. The taper on a rectangular sunk key is
  1.    1 in 16
  2.    1 in 32
  3.    1 in 48
  4.    1 in 100
 Discuss Question
Answer: Option D. -> 1 in 100
Question 32. The standard length of the shaft is
  1.    6 m
  2.    5 m
  3.    7 m
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 33. A tapered key which fits in a key way in the hub and is flat on the shaft, is known as
  1.    Feather key
  2.    Gib-head key
  3.    Wood ruff key
  4.    Flat saddle key
 Discuss Question
Answer: Option D. -> Flat saddle key
Question 34. A tapered key which fits in a key-way in the hub and is flat on the shaft, is known as
  1.    Woodruff key
  2.    Feather key
  3.    Flat saddle key
  4.    Gib head key
 Discuss Question
Answer: Option C. -> Flat saddle key
Question 35. A taper key which fits half in the key way of the hub and half in the key way of shaft, is known as
  1.    Angular bevel gears
  2.    Mitre gears
  3.    Crown Bevel gears
  4.    Internal bevel gears
 Discuss Question
Answer: Option B. -> Mitre gears
Question 36. The creep in the belt is due to
  1.    Effect of temperature on belt
  2.    Material of belt
  3.    Unequal extensions in the belt due to tight and slack side tensions
  4.    Stresses beyond elastic limit of belt material
 Discuss Question
Answer: Option C. -> Unequal extensions in the belt due to tight and slack side tensions
Question 37. In radial cams, the follower moves
  1.    In a direction parallel to the cam axis
  2.    In a direction perpendicular to the cam axis
  3.    In any direction irrespective of cam axis
  4.    Along the cam axis
 Discuss Question
Answer: Option B. -> In a direction perpendicular to the cam axis
Question 38. Which of the following is not correct procedure to increase the fatigue limit?
  1.    Cold working
  2.    Shot peening
  3.    Surface decarburisation
  4.    Under stressing
 Discuss Question
Answer: Option C. -> Surface decarburisation
Question 39. In cylindrical cams, the follower moves
  1.    In a direction perpendicular to the cam axis
  2.    In a direction parallel to the cam axis
  3.    In any direction irrespective of cam axis
  4.    Along the cam axis
 Discuss Question
Answer: Option B. -> In a direction parallel to the cam axis
Question 40. The bearings of heavy series have capacity __________ over the medium series.
  1.    20 to 30%
  2.    10 to 20%
  3.    30 to 40%
  4.    40 to 50%
 Discuss Question
Answer: Option A. -> 20 to 30%

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