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A single fixed pulley is used because it...

A single fixed pulley is used because it:

A

has mechanical advantage greater than 1

B

has velocity ratio less than 1.

C

gives 100% efficiency

D

helps to apply the effort in a convenient direction

Text Solution

Verified by Experts

The correct Answer is:
D
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Explain why a single fixed pulley is used despite no gain in mechanical advantage.

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Knowledge Check

  • A boy uses a single fixed pulley while a girl uses a single movable pulley to draw water from a well. Who has worked efficiently?

    A
    Boy
    B
    Girl
    C
    both
    D
    none of the above

  • A single fixed pulley is a modified form of …………...

    A
    Class I lever
    B
    Class III lever
    C
    Class II lever
    D
    Frisbee

  • A movable pulley is used as:

    A
    a force multiplier
    B
    a speed multiplier
    C
    a device to change the direction of effort
    D
    an energy multiplier

    • Similar Questions

    Explore conceptually related problems

    State whether the following statements are true or false by writing T or F. (a) The velocity ratio of a single fixed pulley is always more than 1. (b) The velocity ratio of a single movable pulley is always 2. (c) The velocity ratio of a combination of n movable pulleys with a fixed pulley is always 2^(n) . (d) The velocity ratio of a block and tackle system is always equal to the number of strands of the tackle supporting the load.

    A single fixed pulley and a movable pulley both are separately used to lift a load of 50 kgf to the same height. Compare the efforts applied

    State four differences between a single fixed pulley and a single movable pulley.

    In a single fixed pulley, if the effort moves by a distance x downwards, by what height is the load raised upwards ?

    A villager uses a single fixed pulley while a person in urban areas uses the combination of single fixed and single movable pulley. Which out of the two are more effective?

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