McqMate
| Q. |
A single fixed pulley is used to draw water from a well because – |
| A. | efficiency is 100% |
| B. | velocity ratio is low |
| C. | mechanical advantage is high |
| D. | force is applied in a convenient direction |
| Answer» D. force is applied in a convenient direction | |
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Explanation: A single fixed pulley is used to lift a load upwards by applying efforts downward's. The load and effort move equal distance but in opposite directions. This is convenient as to apply effort in downward direction. They are used on flag-poles and to draw water from a well. |
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