Advertisements
Advertisements
प्रश्न
What care would you take to increase the life span of a machine which you use?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
State whether the following statement is True or False.
A machine performs work by itself.
Answer the following.
What do you understand by a complex machine?
Answer the following in short.
Mention any two methods by which we can take care of machines.
Give a reason for the following.
Machines are able to make our work convenient.
show a nut cracker In the diagram, mark the position of the fulcrum F and the line of action of load L and effort E .

Define Simple machine
Write an expression for the mechanical advantage of an inclined plane.
Classify the following as a lever, a pulley and an inclined plane:
A needle
Classify the following as a lever, a pulley and an inclined plane:
An opener
Which machine will you use to do the following work? Write their type.
To lift bricks to the top of a tall building.
