AGRICULTURE
IRRIGATION INDIA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is very expensive
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It is time consuming
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It is less efficient
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All of the above
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Detailed explanation-1: -Disadvantages of pulleys It is not a suitable solution for very high-power transfer at high rpm. While taking mechanical advantage lifting distance increases. In long time fatigue and creep happens to rope. Not as reliable when compared with gears.
Detailed explanation-2: -The main disadvantage in the use of the pulley system is that it requires large space to install and operate.
Detailed explanation-3: -Movable Pulley-It is a type of pulley in which the wheel does not remain fixed and moves along with the attached load. Moveable pulley offer an additional advantage as unlike fixed pulley a lot less effort is required as the forces is multiplied at the other end. This makes the job easier.
Detailed explanation-4: -Pulleys reduce the amount of force which is required to lift heavy objects. They can also change the direction of the force. Pulleys are pretty easy to assemble. They are cost-effective. The use of pulleys helps maintain a safe distance between the operator and weight, which avoids mishappenings. More items •19-Sept-2022