Theory of Machine
A chain comprises of 5 links having 5 joints. Is it kinematic chain?

Data are insufficient to determine it
No
It is a marginal case
Yes

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Theory of Machine
In elliptical trammels

Two pairs turning and two pairs sliding
Three pairs turning and one pair sliding
All four pairs are turning
One pair turning and three pairs sliding

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Theory of Machine
Two pulleys of radii r₁ and r₂ and at distance x apart are connected by means of a cross belt drive. The length of the belt is

π (r₁ + r₂) + [(r₁ - r₂)²/x] + 2x
π (r₁ - r₂) + [(r₁ - r₂)²/x] + 2x
π (r₁ + r₂) + [(r₁ + r₂)²/x] + 2x
π (r₁ - r₂) + [(r₁ + r₂)²/x] + 2x

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