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MCQs

Total Questions : 1187 | Page 67 of 119 pages
Question 661. The terms 'leverage' and 'mechanical advantage' Of a compound lever have got the same meaning.
  1.    Correct
  2.    Incorrect
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Correct
Answer: (a).Correct
Question 662. An irregular body may have more than one centre of gravity.
  1.    Yes
  2.    No
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option B. -> No
Answer: (b).No
Question 663. Energy may be defined as the capacity of doing work.
  1.    Correct
  2.    Incorrect
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Correct
Answer: (a).Correct
Question 664. The rate of doing work is known as
  1.    potential energy
  2.    kinetic energy
  3.    power
  4.    none of these
 Discuss Question
Answer: Option C. -> power
Answer: (c).power
Question 665. In a wormed geared pulley block, if the number of teeth on the worm wheel is doubled, then its velocity ratio is also doubled.
  1.    True
  2.    False
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 666. Moment of inertia of a circular section about its diameter (d) is
  1.    πd³/16
  2.    πd³/32
  3.    πd⁴/32
  4.    πd⁴/64
 Discuss Question
Answer: Option D. -> πd⁴/64
Answer: (d).πd⁴/64
Question 667. If three coplaner forces acting on a point are in equilibrium, then each force is proportional to the sine, of the angle between the other two.
  1.    Correct
  2.    Incorrect
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Correct
Answer: (a).Correct
Question 668. The radius of gyration is the distance where the whole mass (or area) of a body is assumed to be concentrated.
  1.    Correct
  2.    Incorrect
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Correct
Answer: (a).Correct
Question 669. The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of α rad / s², is
  1.    a = α/ r
  2.    a = α.r
  3.    a = r / α
  4.    none of these
 Discuss Question
Answer: Option B. -> a = α.r
Answer: (b).a = α.r
Question 670. A smooth cylinder lying on a __________ is in neutral equilibrium.
  1.    curved surface
  2.    convex surface
  3.    horizontal surface
  4.    None of these
 Discuss Question
Answer: Option C. -> horizontal surface
Answer: (c).horizontal surface

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