Lakshya Education MCQs

Question: When a load W is applied suddenly on a bar of cross-sectional area A, the stress induced in the bar will be
Options:
A.W/A
B.W/2A
C.2W/A
D.3W/A
Answer: Option C

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More Questions on This Topic :

Question 1. In helical gears, the right hand helixes on one gear will mesh __________ helixes on the other gear.
  1.    Right hand
  2.    Left hand
  3.    Both A and B
  4.    None of these
Answer: Option B
Question 2. The pitch diameter is the __________ diameter of an external or internal screw thread.
  1.    Effective
  2.    Smallest
  3.    Largest
  4.    None of these
Answer: Option A
Question 3. In unilateral system of tolerance, the tolerance is allowed on
  1.    Both sides of the actual size
  2.    One side of the actual size
  3.    One side of the nominal size
  4.    Both sides of the nominal size
Answer: Option C
Question 4. A type of brake commonly used in motor cars is a
  1.    Shoe brake
  2.    Band and block brake
  3.    Band brake
  4.    Internal expanding brake
Answer: Option D
Question 5. The taper on key is given on
  1.    Bottom side only
  2.    Top side only
  3.    On both sides
  4.    Any side
Answer: Option B
Question 6. Pick up wrong statement. Fatigue strength can be increased by
  1.    Cold working
  2.    Shot peening
  3.    Grinding and lapping surface
  4.    Hot working
Answer: Option D

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