Lakshya Education MCQs

Question: Three different weights fall from a certain height under vacuum. they will take
Options:
A. Same time to reach earth
B. Times proportional to weight to reach earth
C. Times inversely proportional to weight to reach earth
D. None of the above
Answer: Option A

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More Questions on This Topic :

Question 1. 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
Answer: Option B
Question 2. The shear stress in a beam varies from zero at the outer fibers to a maximum at the________.
  1.     Neutral surface
  2.     Upper surface
  3.     Lower surface
  4.     None of these
Answer: Option A
Question 3. 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
Answer: Option B
Question 4. The helix angle for double helical gears may be made up to
  1.     45°
  2.     60°
  3.     75°
  4.     90°
Answer: Option A
Question 5. The shear stress in a beam varies from zero at the outer fibers to a maximum at the________.
  1.     Neutral surface
  2.     Upper surface
  3.     Lower surface
  4.     None of these
Answer: Option A
Question 6. Which of the following is a permanent fastening?
  1.     Bolts
  2.     Keys
  3.     Cotters
  4.     Rivets
Answer: Option D

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