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Theory of Machine

Theory of Machine
The flank of the tooth is the surface of the tooth __________ the pitch surface.

None of these
Above
At
Below

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Theory of Machine
The frictional torque transmitted in a conical pivot bearing with assumption of uniform pressure is __________ as compared to uniform wear.

Same
None of these
More
Less

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

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Theory of Machine
In a pantograph, all the pairs are

Spherical pairs
Sliding pairs
Turning pairs
Self-closed pairs

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Theory of Machine
Which of the following is an example of sliding pair?

Shaft with collars at both ends fitted into a circular hole
Ball and a socket joint
Lead screw of a lathe with nut
Piston and cylinder of a reciprocating steam engine

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Theory of Machine
The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to

45° and 225°
180° and 270°
90° and 180°
270° and 360°

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