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Theory of Machine

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

W sinθ
W cosecθ
W cosθ
W tanθ

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Theory of Machine
A pulley and belt in a belt drive form a

Rolling pair
Sliding pair
Turning pair
Cylindrical pair

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Theory of Machine
The velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by (where ω = Angular velocity of the cam shaft)

ω (r₁ r₂) sinθ
ω (r₁ + r₂) sinθ sec2θ
ω (r₁ + r₂) cosθ cosec2θ
ω (r₁ r₂) cosθ

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Theory of Machine
The pitching of a ship produces forces on the bearings which act __________ to the motion of the ship.

Horizontally and perpendicular
Horizontally and parallel
Vertically and parallel
Vertically and perpendicular

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Theory of Machine
The Coriolis component of acceleration acts

Along the sliding surface
Parallel to the sliding surface
Perpendicular to the sliding surface
At 45° to the sliding surface

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

Circle
Hyperbola
Parabola
Ellipse

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