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प्रश्न
A block and tackle system has V.R. = 5.
Draw a neat labeled diagram of a system indicating the direction of its load and effort
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उत्तर
A block and tackle system whose velocity ratio is 5 is as shown below:
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संबंधित प्रश्न
Name a machine to change the direction of force ?
Explain how a gear system can be used to obtain gain in torque? Given one example.
Define the following term in reference to a gear system of Driving gear ?
Define the following term in reference to a gear system for Gear ratio ?
What is a single movable pulley? What is its mechanical advantage in the ideal case?
A block and tackle pulley system has a velocity ratio 5. Draw a labelled diagram of this system. In your diagram, indicate clearly the points of application and the directions of the load and effort.
Give reason for the following:
In case of a block and tackle system, the mechanical advantage increases with the increase in the number of pulleys.
Draw a diagram of a single fixed pulley and obtain expressions for its:
(i) Mechanical advantage,
(ii) Velocity ratio, and
(iii) Efficiency, in the ideal case.
| Meera chose to use a block and tackle system of '9' pulleys instead of a single movable pulley to lift a heavy load. |
Why should she connect more number of pulleys in the upper fixed block?
Name the type of single pulley that has an ideal mechanical advantage equal to 2. Draw a labelled diagram of the pulley mentioned by you.
