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  • Question
  • The terms 'leverage' and 'mechanical advantage' Of a compound lever have got the same meaning.


  • Options
  • A. Correct
  • B. Incorrect

  • Correct Answer
  • Correct 


  • Engineering Mechanics problems


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    • 1. The centre of oscillation and centre of suspension for a compound pendulum are interchangeable.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. The periodic time (T) is given by(where ? = Angular velocity of particle in rad / s.)

    • Options
    • A. ?/2?
    • B. 2?/?
    • C. 2? x ?
    • D. ?/?
    • Discuss
    • 3. The polygon law of forces states that if a number of forces, acting simultaneously on a particle, be represented in magnitude and direction by the sides a polygon taken in order, then their resultant is represented in magnitude and direction by the closing side of the polygon, taken in opposite direction.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 4. The loss of kinetic energy during inelastic impact, is given by(where m1 = Mass of the first body,m2 = Mass of the second body, and u1 and u2 = Velocities of the first and second bodies respectively.)

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 5. In actual machines, mechanical advantage is __________ velocity ratio.

    • Options
    • A. equal to
    • B. less than
    • C. greater than
    • Discuss
    • 6. For a self locking machine, the efficiency must be

    • Options
    • A. equal to 50%
    • B. less than 50%
    • C. greater than 50%
    • D. 100%
    • Discuss
    • 7. A rubber ball is dropped from a height of 2 m. If there is no loss of velocity after rebounding, the ball will rise to a height of

    • Options
    • A. 1m
    • B. 2m
    • C. 3m
    • D. 4m
    • Discuss
    • 8. The efficiency of a screw jack is maximum, when(where ? = Helix angle, and ? = Angle of friction.)

    • Options
    • A. ? = 45° + ?/2
    • B. ? = 45° - ?/2
    • C. ? = 90° + ?
    • D. ? = 90° - ?
    • Discuss
    • 9. 
      The above figure shows the three coplaner forces P, Q and R acting at a point O. If these forces are in equilibrium, then

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 10. The range of projectile(R) on an upward inclined plane is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss


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