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MCQs

Total Questions : 1187 | Page 119 of 119 pages
Question 1181. If two bodies having masses m1 and m2 (m1>m2) have equal kinetic energies, the momentum of body having mass m1 is _________ the momentum of body having mass m2
  1.    Equal to
  2.    Less than
  3.    Greater than
  4.    None of these
 Discuss Question
Answer: Option C. -> Greater than
Question 1182. A circular hole of 50 mm diameter is cut out from a circular disc of 100 mm diameter as shown in the below figure
  1.    In the shaded area
  2.    In the hole
  3.    At ‘O’
  4.    None of these
 Discuss Question
Answer: Option A. -> In the shaded area
Question 1183. According to Lami’s theorem
  1.    The three forces must be equal
  2.    The three forces must be at 120° to each other
  3.    The three forces must be in equilibrium
  4.    If the three forces acting at a point are in equilibrium, then each force is proportional to the sine of the angle between the other two
 Discuss Question
Answer: Option D. -> If the three forces acting at a point are in equilibrium, then each force is proportional to the sine of the angle between the other two
Question 1184. The angle between two forces when the resultant is maximum and minimum respectively are
  1.    0° and 180°
  2.    180° and 0°
  3.    90° and 180°
  4.    90° and 0°
 Discuss Question
Answer: Option A. -> 0° and 180°
Question 1185. The linear velocity of a body rotating at ω rad/s along a circular path of radius r is given by
  1.    ω/r
  2.    ω.r
  3.    ω²/r
  4.    ω².r
 Discuss Question
Answer: Option B. -> ω.r
Question 1186. The velocity ratio for the third system of pulleys is
  1.    2n - 1
  2.    n
  3.    n²
  4.    2n
 Discuss Question
Answer: Option A. -> 2n - 1
Question 1187. The maximum mechanical advantage of a lifting machine is
  1.    1 + m
  2.    1 - m
  3.    1 / m
  4.    m
 Discuss Question
Answer: Option C. -> 1 / m

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