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Applied Mechanics problems

  • 1. The reaction at the support D of the continuous beam ABCD, hinged at two points shown in below figure is
    Civil Engineering Applied Mechanics: The reaction at the support D of the continuous beam ABCD, hinged at two points shown

  • Options
  • A. 1.6 t ?
  • B. 1.6 t ?
  • C. 0.5 t ?
  • D. 0.5 t ?
  • E. 8.5 t ?
    • Discuss
  • 2. For a self-locking machine, the efficiency should be

  • Options
  • A. less than 60%
  • B. 50%
  • C. more than 50%
  • D. None of these.
    • Discuss
  • 3. Centre of gravity of a thin hollow cone lies on the axis of symmmetry at a height of

  • Options
  • A. one-half of the total height above base
  • B. one-third of the total height above base
  • C. one-fourth of the total height above base
  • D. none of these.
    • Discuss
  • 4. When a body falls freely under gravitational force, it possesses

  • Options
  • A. maximum weight
  • B. minimum weight
  • C. no weight
  • D. no effect on its weight.
    • Discuss
  • 5. Periodic time of a particle moving with simple harmonic motion is the time taken by the particle for

  • Options
  • A. half oscillation
  • B. quarter oscillation
  • C. complete oscillation
  • D. none of these.
    • Discuss
  • 6. The piston of a steam engine moves with a simple harmonic motion. The crank rotates 120 r.p.m. and the stroke length is 2 metres. The linear velocity of the piston when it is at a distance of 0.5 metre from the centre, is

  • Options
  • A. 5.88 m/sec
  • B. 8.88 m/sec
  • C. 10.88 m/sec
  • D. 12.88 m/sec.
    • Discuss
  • 7. The C.G. of a hemisphere from its base measured along the vertical radius is at a distance of

  • Options
  • A.
  • B.
  • C.
  • D.
  • E. R/2.
    • Discuss
  • 8. The gravitational force makes a satellite go round the earth in a circular orbit, if it is projected with an initial velocity of

  • Options
  • A. 8.04 km/sec at a height of 285 km
  • B. 11.11 km/sec at a height of 37, 400 km
  • C. 11.26 km/sec, the satellite escapes the pull of the earth
  • D. all the above.
    • Discuss
  • 9. The point about which combined motion of rotation and translation of a rigid body takes place, is known as

  • Options
  • A. Virtual centre
  • B. Instantaneous centre
  • C. Instantaneous axis
  • D. Point of rotation
  • E. All the above.
    • Discuss
  • 10. The motion of a bicycle wheel is

  • Options
  • A. translatory
  • B. rotary
  • C. rotary and translatory
  • D. curvilinear
    • Discuss

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