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Theory of Machine

Theory of Machine
The moment on the pulley which produces rotation is called

Inertia
Momentum
Torque
Moment of momentum

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Theory of Machine
A shaft carrying three rotors will have

One node
No node
Three nodes
Two nodes

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Theory of Machine
To connect two parallel and coplanar shafts the following type of gearing is used

None of the listed here
Spur gear
Bevel gear
Spiral gear

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Theory of Machine
Coriolis component acts

Somewhere in between above two
Along sliding surfaces
Perpendicular to sliding surfaces
None of these

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Theory of Machine
The power of a Porter governor is equal to

[4c²/(1 + 2c)] (m + M) g.h
[c²/(1 + 2c)] (m + M) g.h
[3c²/(1 + 2c)] (m + M) g.h
[2c²/(1 + 2c)] (m + M) g.h

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Theory of Machine
The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ω₁ rad/s in the clockwise direction and the link OB turns with angular velocity ω₂ rad/s in the clockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O)

(ω₁ - ω₂)r
ω₁.ω₂.r
(ω₁ - ω₂)2r
(ω₁ + ω₂)r

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