Lakshya Education MCQs

Question: A shaft is subjected to a maximum bending stress of 80 n/mm² and maximum shearing stress equal to 30 n/mm² at a particular section. if the yield point in tension of the material is 280 n/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be
Options:
A. 2.5
B. 2.8
C. 3.0
D. 3.5
Answer: Option B

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More Questions on This Topic :

Question 1. The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.
  1.     Increases
  2.     Decreases
  3.     Remain same
  4.     None of these
Answer: Option A
Question 2. For longitudinal joint in boilers, the type of joint used is
  1.     Butt joint with single cover plate
  2.     Butt joint with double cover plate
  3.     Lap joint with one ring overlapping the other
  4.     Any one of the above
Answer: Option B
Question 3. The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.
  1.     Increases
  2.     Decreases
  3.     Remain same
  4.     None of these
Answer: Option A
Question 4. For longitudinal joint in boilers, the type of joint used is
  1.     Butt joint with single cover plate
  2.     Butt joint with double cover plate
  3.     Lap joint with one ring overlapping the other
  4.     Any one of the above
Answer: Option B
Question 5. Lewis form factor for 14½° composite and full depth involute system is (where t = number of teeth)
  1.     0.124 - (0.684/T)
  2.     0.154 - (0.912/T)
  3.     0.175 - (0.841/T)
  4.     None of these
Answer: Option A
Question 6. For longitudinal joint in boilers, the type of joint used is
  1.     Butt joint with single cover plate
  2.     Butt joint with double cover plate
  3.     Lap joint with one ring overlapping the other
  4.     Any one of the above
Answer: Option B

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