Advertisements
Advertisements
Question
What care would you take to increase the life span of a machine which you use?
Advertisements
Solution
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
RELATED QUESTIONS
Answer the following.
What do you understand by a complex machine?
Why is a machine not 100% efficient?
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 .
State whether the mechanical advantage of an inclined plane is equal to 1, less than 2 or greater than 1?
The mechanical advantage of an inclined place is always:
(a) less than 1
(b) equal to 1
(c) greater than 1
(d) nothing can be said
Give an example of the following uses of a machine:
to obtain gain in speed
Can a simple machine act as a force multiplier and a speed multiplier at the same time?
Classify the following as a lever, a pulley and an inclined plane:
A staircase
The idea of a simple machine originated with the Greek philosopher Archimedes.
Name a machine for each of the following uses:
- to multiply the force,
- to change the point of application of force,
- to change the direction of force,
- to obtain the gain in speed.
