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THEORY OF MACHINE

Theory of Machine
Typewriter constitutes

Mechanism
Structure
Inversion
Machine

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Theory of Machine
The minimum force required to slide a body of weight W on a rough horizontal plane is

W cosθ
W cosecθ
W sinθ
W tanθ

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Theory of Machine
In a locomotive, the maximum magnitude of the unbalanced force along the perpendicular to the line of stroke, is known as

Hammer blow
Tractive force
Swaying couple
None of these

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Theory of Machine
In a locomotive, the resultant unbalanced force due to the two cylinders along the line of stroke, is known as

Swaying couple
Tractive force
Hammer blow
None of these

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Theory of Machine
The displacement of a flat faced follower when it has contact with the flank of a circular arc cam, is given by (where R = Radius of flank, r₁ = Minimum radius of the cam, and θ = Angle turned through by the cam)

(R - r₁) (1 - sinθ)
R (1 - sinθ)
R (1 - cosθ)
(R - r₁) (1 - cosθ)

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