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Theory of Machine

Theory of Machine
If two moving elements have surface contact in motion, such pair is known as

Sliding pair
Rolling pair
Higher pair
Surface pair

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Theory of Machine
A single degree of freedom system is given by, m × (d²x/dt²) + c × (dx/dt) + sx = F.cosω.t with usual notations. It represents

Free vibration without damping
Free vibration with damping
Forced vibration without damping
Forced vibration with damping

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Theory of Machine
The number of links in pantograph mechanism is equal to

4
2
3
5

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Theory of Machine
The axis of precession is __________ to the plane in which the axis of spin is going to rotate.

Parallel
Perpendicular
Both A and B
None of these

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Theory of Machine
If the opposite links of a four bar linkage are equal, the links will always form a

Rectangle
Pentagon
Parallelogram
Triangle

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Theory of Machine
In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is

Slightly less than 95 mm
Slightly more than 95 mm
45 mm
95 mm

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