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Theory of Machine

Theory of Machine
A slider crank chain consists of following numbers of turning and sliding pairs

3, 1
4, 0
2, 2
1, 3

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Theory of Machine
Transmission angle is the angle between

Input link and coupler
Input link and fixed link
Output link and fixed link
Output link and coupler

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Theory of Machine
The velocity of the belt for maximum power is (where m = Mass of the belt in kg per meter length)

√(3m/T)
(T.g)/3
T/3
√(T/3m)

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Theory of Machine
A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become

tp /16
tp /4
4 tp
16 tp

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Theory of Machine
A cam with a roller follower would constitute following type of pair

Higher pair
Close pair
Open pair
Lower pair

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Theory of Machine
When a point at the end of a link moves with constant angular velocity, its acceleration will have

Coriolis component only
Radial and tangential components both
Radial component only
Tangential component only

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