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MCQs

Total Questions : 1187 | Page 117 of 119 pages
Question 1161. Concurrent forces are those forces whose lines of action
  1.    Lie on the same line
  2.    Meet at one point
  3.    Meet on the same plane
  4.    None of these
 Discuss Question
Answer: Option B. -> Meet at one point
Question 1162. If a suspended body is struck at the center of percussion, then the pressure on die axis passing through the point of suspension will be
  1.    Infinity
  2.    Maximum
  3.    Zero
  4.    Minimum
 Discuss Question
Answer: Option C. -> Zero
Question 1163. The center of percussion of a solid cylinder of radius ‘r’ resting on a horizontal plane will be
  1.    r/A
  2.    r/2
  3.    2r/3
  4.    3r/2
 Discuss Question
Answer: Option D. -> 3r/2
Question 1164. The periodic time of one oscillation for a simple pendulum is (where l = Length of the pendulum.)
  1.    2π. √(l/g)
  2.    None of these
  3.    (1/2π). √(g/l)
  4.    (1/2π). √(l/g)
 Discuss Question
Answer: Option A. -> 2π. √(l/g)
Question 1165. The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)
  1.    2n - 1
  2.    n
  3.    2n
  4.    n²
 Discuss Question
Answer: Option C. -> 2n
Question 1166. Which of the following statement is correct in connection with projectiles?
  1.    A path, traced by a projectile in the space, is known as trajectory.
  2.    The velocity, with which a projectile is projected, is known as the velocity of projection.
  3.    The angle, with the horizontal, at which a projectile is projected, is known as angle of projection.
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 1167. Static friction is always __________ dynamic friction.
  1.    Equal to
  2.    Less than
  3.    Greater than
  4.    None of these
 Discuss Question
Answer: Option C. -> Greater than
Question 1168. The center of gravity of a quadrant of a circle lies along its central radius (r) at a distance of
  1.    0.8 r
  2.    0.6 r
  3.    0.5 r
  4.    0.7 r
 Discuss Question
Answer: Option B. -> 0.6 r
Question 1169. A framed structure is imperfect, if the numbers of members are __________ (2j - 3).
  1.    Greater than
  2.    Less than
  3.    Equal to
  4.    Either (B) or (C)
 Discuss Question
Answer: Option D. -> Either (B) or (C)
Question 1170. According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)
  1.    IP = IG + Ah2
  2.    IP = IG / Ah2
  3.    IP = IG - Ah2
  4.    IP = Ah2 / IG
 Discuss Question
Answer: Option A. -> IP = IG + Ah2

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