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Theory of Machine

Theory of Machine
The velocity of the rubbing surface __________ with the distance from the axis of the bearing.

Remain same
None of these
Increases
Decreases

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Theory of Machine
The maximum or minimum value of the swaying couple is

± c.m.ω².r
± (a/√2) (1 - c) m.ω².r
± a (1 - c) m.ω².r
± 2a (1 - c) m.ω².r

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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)

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

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Theory of Machine
The pressure angle of a cam is the angle between the direction of the follower motion and a normal to the

Base circle
Pitch circle
Prime circle
Pitch curve

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Theory of Machine
The critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in

Transverse vibrations
All of these
Longitudinal vibrations
Torsional vibrations

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Theory of Machine
The example of spherical pair is

Ball bearing and roller bearing
Lead screw of a lathe
Bolt and nut
Ball and socket joint

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MORE MCQ ON Theory of Machine

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