machine parts has to be oiled regularly . give reason?
Oiling is done regularly to reduce the friction between the machine parts. This prevents wear and tear of machine parts.
Applying oil to machine parts increases the efficiency of the machine.
Give reasons why :
(a) An object thrown upwards reaches a certain height and falls down.
(b) We sprinkle talcum powder on a carrom board.
(c) The ramp on a railway station has a rough surface.
(d) We oil our bicycles regularly.
What will happen if we do not oil machine parts?