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Theory of Machine

Theory of Machine
Ackermann steering gear consists of

Rolling pairs
Sliding pairs
Higher pairs
Turning pairs

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Theory of Machine
Which of the following is an inversion of Single slider crank chain?

Oldham’s coupling
Beam engine
Elliptical trammel
Rotary engine

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Theory of Machine
When the radius of rotation of balls __________ as the equilibrium speed increases, the governor is said to be unstable.

None of these
Increases
Remains constant
Decreases

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Theory of Machine
Coriolis component is encountered in

Slider crank mechanism
Quick return mechanism of shaper
Both (A) and (C) above
Four bar chain mechanism

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Theory of Machine
In steady state forced vibrations, the amplitude of vibrations at resonance is __________ damping coefficient.

Directly proportional to
Inversely proportional to
Equal to
Independent of

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

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