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  • Question

  • If the tension in a cable supporting a lift moving upwards is twice the tension when the lift is movng downwards, the acceleration of the lift, is


  • Options
  • A. If the tension in a cable supporting a lift moving upwards is twice the tension when the lift is mov
  • B. If the tension in a cable supporting a lift moving upwards is twice the tension when the lift is mov
  • C. If the tension in a cable supporting a lift moving upwards is twice the tension when the lift is mov
  • D. If the tension in a cable supporting a lift moving upwards is twice the tension when the lift is mov

  • Correct Answer
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    • Applied Mechanics problems

    Search Results

    • 1. A satellite moves in its orbit around the earth due to

    • Options
    • A. Gravitational force
    • B. Centripetal force
    • C. Centrifugal force
    • D. none of these.
      • Discuss
    • 2. The unit of Moment of Inertia of a body, is

    • Options
    • A. m
    • B. m2
    • C. m3
    • D. m4
    • E. none of these.
      • Discuss
    • 3. Work may be defined as

    • Options
    • A. force x distance
    • B. force x velocity
    • C. force x acceleration
    • D. none of these.
      • Discuss
    • 4. The length of a Second's pendulum, is

    • Options
    • A. 99.0 cm
    • B. 99.4 cm
    • C. 100 cm
    • D. 101 cm
    • E. 101.10 cm.
      • Discuss
    • 5. A projectile is thrown at an angle a to the horizontal with ? velocity v. It will have the maximum centripetal acceleration

    • Options
    • A. at the start
    • B. at the top of the trajectory
    • C. as it strikes the ground
    • D. else where.
      • Discuss
    • 6. The mechanical advantage of an ideal machine is 100. For moving the local through 2 m, the effort moves through

    • Options
    • A. 0.02 m
    • B. 2 m
    • C. 2.5 m
    • D. 20 m.
      • Discuss
    • 7. Pick up the correct statement from the following :

    • Options
    • A. For tranquil flow h > 2g or v <
    • B. For critical flow
    • C. For torrential flow h > or v < gh
    • D. None of these.
      • Discuss
    • 8. Pick up the correct statement regarding Borda's mouth piece running full from the following :

    • Options
    • A. Actual velocity at the out let is gH
    • B. Theoretical velocity at the outlet is 2gH
    • C. Coefficient of velocity is 1/2
    • D. Coefficient of contraction is 1
    • E. All the above.
      • Discuss
    • 9. Bernoulli's equation assumes that

    • Options
    • A. fluid is non-viscous
    • B. fluid is homogeneous
    • C. flow is steady
    • D. flow is along the stream line
    • E. all the above.
      • Discuss
    • 10. A pitot tube is used to measure

    • Options
    • A. pressure
    • B. difference in pressure
    • C. velocity of flow
    • D. none of these.
      • Discuss

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