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Theory of Machine

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

Above
Below
None of these
At

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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.

Increases
Remains constant
Decreases
None of these

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Theory of Machine
A shaft carrying two rotors at its ends will have

One node
Two nodes
Three nodes
No node

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Theory of Machine
According to Kennedy's theorem, if three bodies move relatively to each other, their instantaneous centers will lie on a

Straight line
Parabolic curve
Rectangle
Triangle

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Theory of Machine
Maximum fluctuation of energy in a flywheel is equal to [where I = Mass moment of inertia of the flywheel, E = Maximum fluctuation of energy, CS = Coefficient of fluctuation of speed, and ω = Mean angular speed = (ω₁ + ω₂)/2]

All of these
I.ω.(ω₁ - ω₂)
2.E.CS
I.ω².CS

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Theory of Machine
The gear train usually employed in clocks is a

Simple gear train
Differential gear
Reverted gear train
Sun and planet gear

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