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Theory of Machine

Theory of Machine
Typewriter constitutes

Machine
Structure
Mechanism
Inversion

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Theory of Machine
In a steam engine, the link constitutes a

Connecting rod with big and small end brasses, caps and bolts
Piston, piston rod and cross-head
All of these
Crank pin, crankshaft and flywheel

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Theory of Machine
Transmission of power from the engine to the rear axle of an automobile is by means of

Crown gear
Worm and wheel method
Compound gears
Hooke's joint

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Theory of Machine
The dynamic friction is the friction experienced by a body, when the body

None of these
Is in motion
Is at rest
Just begins to slide over the surface of the other body

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Theory of Machine
The condition for correct steering of a Davis steering gear is (where α = Angle of inclination of the links to the vertical)

cotα = c/2b
sinα = b/c
cosα = c/b
tanα = c/2b

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Theory of Machine
The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

ω² R cosθ
ω² (R - r₁) cosθ
ω² r₁ sinθ
ω² (R - r₁) sinθ

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