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MCQs

Total Questions : 2607 | Page 106 of 261 pages
Question 1051.


A connecting rod subjected to an axial load may buckle in the plane of motion of the connecting rod.


  1.    Correct
  2.    Incorrect
 Discuss Question
Answer: Option A. -> Correct


Question 1052.


In a turnbuckle, if one of the rods has left hand threads, then the other rod will have


  1.    right hand threads
  2.    left hand threads
  3.    multiple threads
  4.    pointed threads
 Discuss Question
Answer: Option A. -> right hand threads


Question 1053.

 
According to I.B.R., when the thickness of the boiler shell (t) is less than 8 mm, then the diameter of the rivet hole (d) is obtained by


  1.    equating tearing resistance of the plate to the shearing resistance of the rivets
  2.    equating tearing resistance of the plate to the crushing resistance of the rivets
  3.    equating shearing resistance to the crushing resistance of the rivets
  4.    none of the above
 Discuss Question
Answer: Option C. -> equating shearing resistance to the crushing resistance of the rivets


Question 1054.

Lewis equation is applied


  1.    only to the pinion
  2.    only to the gear
  3.    to stronger of the pinion or gear
  4.    to weaker of the pinion or gear
 Discuss Question
Answer: Option D. -> to weaker of the pinion or gear


Question 1055.

A tap bolt has


  1.    threads for the nut at one end and head at the other end
  2.    head at one end and the other end fits into a tapped hole of one of the parts to be fastened
  3.    threads at both ends
  4.    pointed threads
 Discuss Question
Answer: Option B. -> head at one end and the other end fits into a tapped hole of one of the parts to be fastened


Question 1056.


According to I.B.R., the thickness of the boiler shell should not be less than


  1.    4 mm
  2.    5 mm
  3.    6 mm
  4.    7 mm
 Discuss Question
Answer: Option D. -> 7 mm


Question 1057.

 
In a steam engine, the piston rod is usually connected to the crosshead by means of a


  1.    knuckle joint
  2.    cotter joint
  3.    oldham coupling
  4.    universal joint
 Discuss Question
Answer: Option B. -> cotter joint


Question 1058.


In the assembly of pulley, key and shaft


  1.    pulley is made the weakest
  2.    key is made the weakest
  3.    key is made the stongest
  4.    all the three are designed for equal strength
 Discuss Question
Answer: Option B. -> key is made the weakest


Question 1059.

 
Which of the following screw thread is adopted for power transmission in either direction?


  1.    Acme threads
  2.    Square threads
  3.    Buttress threads
  4.    Multiple threads
 Discuss Question
Answer: Option B. -> Square threads


Question 1060.


The helix angle for double helical gears may be made up to


  1.    ` 45^circ`
  2.    `60^circ`
  3.    `75^circ`
  4.    `90^circ`
 Discuss Question
Answer: Option A. -> ` 45^circ`


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