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MCQs

Total Questions : 2607 | Page 122 of 261 pages
Question 1211.
 
In a flange
coupling, the keys are staggered at __________ along the circumference
of the shafts in order to divide the weakening effect caused by key
ways
  1.    90°
  2.    135°
  3.    160°
  4.    180°
 Discuss Question
Answer: Option A. -> 90°


Question 1212.
A basic hole is one whose
  1.    lower deviation is zero
  2.    upper deviation is zero
  3.    lower and upper deviations are zero
  4.    none of these
 Discuss Question
Answer: Option A. -> lower deviation is zero


Question 1213.

Which one of the following loading is considered for the design of axles?


  1.    Bending moment only
  2.    Twisting moment only
  3.    Combined bending moment and twisting moments
  4.    Combined action of bending moment, twisting moment and axial thrust
 Discuss Question
Answer: Option A. -> Bending moment only


Question 1214.

When the
connected members are very yielding (soft gasket) as compared to the
bolt, then the resultant load on the bolt will be equal to the


  1.    initial tension
  2.    external load applied
  3.    sum of the initial tension and external load applied
  4.    initial tension or external load, whichever is greater
 Discuss Question
Answer: Option C. -> sum of the initial tension and external load applied


Question 1215.
.A steel containing __________ 0.8% carbon is known as hypo-eutectoid steel.
  1.    equal to
  2.    less than
  3.    greater than
 Discuss Question
Answer: Option B. -> less than


Question 1216.

In designing a connecting rod, it is considered like __________ for buckling about Y-axis.


  1.    both ends hinged
  2.    both ends fixed
  3.    one end fixed and the other end hinged
  4.    one end fixed and the other end free
 Discuss Question
Answer: Option B. -> both ends fixed


Question 1217.
 
According to
Indian standards, a bolt thread of 6 mm size of coarse pitch and with
allowance on the threads and normal tolerance grade is designated as
  1.    M6
  2.    M8
  3.    M6 - 8d
  4.    M8 - 6d
 Discuss Question
Answer: Option C. -> M6 - 8d


Question 1218.
.When two non-parallel or intersecting but coplaner shafts are connected by gears, the arrangement is known as bevel gearing.
  1.    Correct
  2.    Incorrect
 Discuss Question
Answer: Option A. -> Correct


Question 1219.
 
According to
I.B.R., the efficiency of a triple riveted butt joint with double straps
of unequal width (5 rivets per pitch length) should be
  1.    45 to 60%
  2.    63 to 70%
  3.    70 to 83%
  4.    80 to 90%
 Discuss Question
Answer: Option D. -> 80 to 90%


Question 1220.
 
The effective stress in wire ropes during normal working is equal to the stress due to
  1.    axial load plus stress due to bending
  2.    acceleration/retardation of masses plus stress due to bending
  3.    axial load plus stress due to acceleration/retardation
  4.    bending plus stress due to acceleration/retardation
 Discuss Question
Answer: Option A. -> axial load plus stress due to bending


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