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Engineering Mechanics problems

  • 1. The total time taken by a projectile to reach maximum height and to return back to the ground, is known as time of flight.

  • Options
  • A. Yes
  • B. No
    • Discuss
  • 2. The equivalent length of a simple pendulum which gives the same frequency as compound pendulum is

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 3. The unit of angular acceleration is

  • Options
  • A. N-m
  • B. m/s
  • C. m/s2
  • D. rad/s2
    • Discuss
  • 4. Work done is said to be zero, when

  • Options
  • A. some force acts on a body, but displacement is zero
  • B. no force acts on a body but some displacement takes place
  • C. either (a) or (b)
  • D. none of the above
    • Discuss
  • 5. During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.

  • Options
  • A. equal to
  • B. equal and opposite to
  • C. less than
  • D. greater than
    • Discuss
  • 6. Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is

  • Options
  • A. bh3/4
  • B. bh3/8
  • C. bh3/12
  • D. bh3/36
    • Discuss
  • 7. The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, ? = Angle of projection, and ? = Inclination of the plane with the horizontal.)

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 8. If the masses of both the bodies, as shown in the below figure, are reduced to 50 percent, then tension in the string will be
    Mechanical Engineering Engineering Mechanics: If the masses of both the bodies, as shown in the below figure, are reduced to 50 percent, then tens

  • Options
  • A. same
  • B. half
  • C. double
    • Discuss
  • 9. The range of projectile on a downward inclined plane is __________ the range on upward inclined plane for the same velocity of projection and angle of projection.

  • Options
  • A. less than
  • B. more than
  • C. equal to
    • Discuss
  • 10. The angle of inclination of a vehicle when moving along a circular path __________ upon its mass.

  • Options
  • A. depends
  • B. does not depend
    • Discuss

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