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प्रश्न
What care would you take to increase the life span of a machine which you use?
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उत्तर
Taking care of machines: Some of the ways in which machines should be cared for are given below:
- Machines should be kept in a clean environment, which is free from dust and moisture.
- When not in use, machines should be kept covered to prevent the collection of dust on them.
- Machines made of iron should be protected from rust by coating them with paint.
- The moving parts of a machine should be regularly oiled with good-quality machine oil to reduce friction and wear and tear. The above care of machines increases their life.
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संबंधित प्रश्न
Fill in the blank:
The useful work done by an actual machine is always ............ than the work done on the machine.
Name six simple machines. Give an example of each machine.
State the kind of lever which always has mechanical advantage less than 1. Draw a labelled diagram of such a lever.
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Passengers in a bus are pushed backward when it starts suddenly.
Define Mechanical advantage
Define mechanical advantage (M.A.) of the machine.
Classify the following as a lever, a pulley and an inclined plane:
Nutcrackers
Classify the following as a lever, a pulley and an inclined plane:
A crane
