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MCQs

Total Questions : 2607 | Page 65 of 261 pages
Question 641. If the size of a standard specimen for a fatigue testing machine is increased, the endurance limit for the material will
  1.    have same value as that of standard specimen
  2.    increase
  3.    decrease
  4.    None of these
 Discuss Question
Answer: Option C. -> decrease
Answer: (c).decrease
Question 642. A chain drive transmits __________ power as compared to belt drive.
  1.    more
  2.    less
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> more
Answer: (a).more
Question 643. A triple riveted butt joint with double straps of unequal width is to be designed for a boiler shell. The pitch of the rivets in the outer row is double the pitch in the inner row and zig-zag riveting is proposed. Which of the following statement is correct?
  1.    There are four rivets per pitch length, all in double shear
  2.    There are four rivets per pitch length, out of which two are in single shear and two are in double shear
  3.    There are five rivets per pitch length, all in double shear
  4.    There are five rivets per pitch length, out of which four are in double shear and one is in single shear
 Discuss Question
Answer: Option D. -> There are five rivets per pitch length, out of which four are in double shear and one is in single shear
Answer: (d).There are five rivets per pitch length, out of which four are in double shear and one is in single shear
Question 644. The stress in the bar when the load is applied suddenly is __________ as compared to the stress induced due to gradually applied loads.
  1.    same
  2.    double
  3.    three times
  4.    four times
 Discuss Question
Answer: Option B. -> double
Answer: (b).double
Question 645. 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
Answer: (d).1 in 100
Question 646. The form factor of a helical gear __________ with the increase in the helix angle.
  1.    increases
  2.    decreases
  3.    remains constant
  4.    None of these
 Discuss Question
Answer: Option A. -> increases
Answer: (a).increases
Question 647. The tension on the slack side of the belt is __________ the tension on the tight side of the belt.
  1.    equal to
  2.    less than
  3.    greater than
  4.    None of these
 Discuss Question
Answer: Option B. -> less than
Answer: (b).less than
Question 648. The resultant axial load on a bolt depends upon
  1.    external load applied
  2.    initial tension due to tightening of the bolt
  3.    relative elastic yielding of the bolt and the connected members
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 649. The property of a material which enables it to resist fracture due to high impact loads, is called toughness.
  1.    True
  2.    False
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 650. The buttress threads have low frictional resistance characteristic of the square threads and have the same strength of V-threads.
  1.    Yes
  2.    No
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Yes
Answer: (a).Yes

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