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प्रश्न
Answer the following in short.
Mention any two methods by which we can take care of machines.
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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.
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संबंधित प्रश्न
State whether the following statement is True or False.
In an ideal machine, work done on load is equal to the work done by effort.
Answer the following.
What is a machine?
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Passengers in a bus are pushed backward when it starts suddenly.
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What is a lever?
Why is this so machines have to be maintained?
