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Theory of Machine

Theory of Machine
A pantograph is a mechanism with

Lower pairs
Rolling pairs
Higher pairs
Turning pairs

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Theory of Machine
The lower pair is a

Point contact pair
Sliding pair
Closed pair
Open pair

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Theory of Machine
The lead screw of a lathe with nut forms a

Rolling pair
Sliding pair
Turning pair
Screw pair

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Theory of Machine
A point on a link connecting double slider crank chain traces a

Parabola
Ellipse
Hyperbola
Circle

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Theory of Machine
Which of the following disciplines provides study of relative motion between the parts of a machine?

Kinematics
Mechanisms
Applied mechanics
Theory of machines

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Theory of Machine
In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction)

P = W tan(α + φ)
P = W cos(α + φ)
P = W tan(φ - α)
P = W tan(α - φ)

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