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  • Question

  • A non-reversible machine is also called a self-locking machine.


  • Options
  • A. Agree
  • B. Disagree

  • Correct Answer
  • Agree 

    • Engineering Mechanics problems

    Search Results

    • 1. The moment of inertia of a thin disc of mass m and radius r, about an axis through its centre of gravity and perpendicular to the plane of the disc is

    • Options
    • A. mr2/2
    • B. mr2/4
    • C. mr2/6
    • D. mr2/8
      • Discuss
    • 2. The power developed by a body acted upon by a torque T newton metre (N - m) and revolving at ? radian/s is given by

    • Options
    • A. T.? (in watts)
    • B. T.?/60 (in watts)
    • C. T.?/75 (in kilowatts)
    • D. T.?/4500 (in kilowatts)
      • Discuss
    • 3. The time taken by a particle for one complete oscillation is known as periodic time.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 4. The ideal angle of banking provided on the curves on roads depends upon

    • Options
    • A. weight of the vehicle
    • B. (velocity)2 of the vehicle
    • C. nature of the road surface
    • D. coefficient of friction between the road and vehicle contact point
      • Discuss
    • 5. The linear velocity of a body rotating at ? rad / s along a circular path of radius r is given by

    • Options
    • A. ?/r
    • B. ?.r
    • C. ?2/r
    • D. ?2.r
      • Discuss
    • 6. When two elastic bodies collide with each other,

    • Options
    • A. the two bodies will momentarily come to rest after collision
    • B. the two bodies tend to compress and deform at the surface of contact
    • C. the two bodies begin to regain their original shape
    • D. all of the above
      • Discuss
    • 7. The resultant of two equal forces P making an angle ?, is given by

    • Options
    • A. 2 P sin ? /2
    • B. 2 P cos ? /2
    • C. 2 P tan ? /2
    • D. 2 P cot ? /2
      • Discuss
    • 8. The maximum velocity of a particle moving with simple harmonic motion is

    • Options
    • A. ?
    • B. ?r
    • C. ?2r
    • D. ?/r
      • Discuss
    • 9. A machine which is not capable of doing any work in the reversed direction, after the effort is removed, is called a reversible machine.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The forces which do not meet at one point and their lines of action do not lie on the same plane are known as

    • Options
    • A. coplaner concurrent forces
    • B. coplaner non-concurrent forces
    • C. non-coplaner concurrent forces
    • D. none of these
      • Discuss

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