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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
Select the correct alternative:
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A machine is 75% efficient’. What do you understand by this statement?
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Classify the following as a lever, a pulley and an inclined plane:
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The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the first order.
