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प्रश्न
Which machine will you use to do the following work? Write their type.
To draw water from a well.
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उत्तर
To draw water from a well, we should use a pulley system or wheel-axle.
संबंधित प्रश्न
State whether the following statement is True or False.
A machine performs work by itself.
A machine is 75% efficient’. What do you understand by this statement?
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
Define Mechanical advantage
Can a simple machine act as a force multiplier and a speed multiplier at the same time?
Define mechanical advantage (M.A.) of the machine.
Establish a relationship between efficiency, M.A., and V.R.
Classify the following as a lever, a pulley and an inclined plane:
Nutcrackers
Which machine will you use to do the following work? Write their type.
To hold a papad for roasting it.
Why is this so machines have to be maintained?
