Mechanisms
Cams
Gear Trains
Four bar mechanism
Spur gears
100

When any one of the link is fixed

Is called Mechanism 

100

Application of cam and follower

To open and close the valves 

100

Types of gear trains 

Simple and compound gear trains

100

Inversions of four bar mechanism

Beam engine

100

why spur gears are used 

to transmit motion between two parallel shafts

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