Advertisements
Advertisements
प्रश्न
There is no gain in mechanical advantage in the case of a single fixed pulley. Explain, why the pulley is then used?
Advertisements
उत्तर
It is used only to change the direction of effort to a more convenient direction and to use one’s own weight for the effort.
संबंधित प्रश्न
Answer the following in detail.
How does a pulley make work simpler?
Explain the working of a gear system.
Explain how a gear system can be used to obtain Change in direction of rotation. Given one example.
What should be the gear ration of a car : equal to 1, less than 1 or greater than 1, while ascending a hill ?
Differentiate between a single fixed pulley and a single movable pulley.
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.
Name the type of single pulley that can act as a force multiplier. Draw a labeled diagram of the pulley mentioned by you.
Name a machine which is used to:
change the direction of force applied.
A pulley is a machine made up of a ______.
A block and tackle system of pulleys has a velocity ratio of 4.
- Draw a labelled diagram of the system indicating clearly the direction of the load and effort.
- Calculate the potential energy of the load 100 kgf lifted by this pulley to a height 5 m. (g = 10 ms−2)
