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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
A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become

16 tp
tp /4
tp /16
4 tp

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Theory of Machine
The secondary unbalanced force is __________ the primary unbalanced force.

1/n times
Two-third
n times
One-half

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Theory of Machine
The frictional torque transmitted in a conical pivot bearing, considering uniform pressure, is (where R = Radius of shaft, and α = Semi-angle of the cone)

(2/3) μ W R cosecα
(1/2) μ W R cosecα
μ W R cosecα
(3/4) μ W R cosecα

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Theory of Machine
The indicator using Watt mechanism is known as

Thompson indicator
Simplex indicator
Richard indicator
Thomson indicator

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Theory of Machine
The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at

An infinite distance on the plane surface
The point of contact
The center of the disc
The point on the circumference situated vertically opposite to the contact point

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