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Theory of Machine

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

Inertia
Torque
Moment of momentum
Momentum

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Theory of Machine
The magnitude of linear velocity of a point B on a link AB relative to point A is, (Where ω = Angular velocity of the link AB)

ω × AB
ω × (AB)²
ω² × AB
(ω × AB)²

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Theory of Machine
A system in dynamic balance implies that

The system is also statically balanced
There is no critical speed in the system
The system is critically damped
There will absolutely no wear of bearings

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Theory of Machine
The Klein's diagram is useful to find

Angular acceleration of various parts
Displacement of various parts
Velocity of various parts
Acceleration of various parts

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Theory of Machine
Hart mechanism has

Twelve links
Six links
Four links
Eight links

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Theory of Machine
In a flat collar pivot bearing, the moment due to friction is proportional to

(r₁² - r₂²)/(r₁ - r₂)
(r₁³ - r₂³)/(r₁ - r₂)
(r₁² - r₂²)/(r₁ + r₂)
(r₁³ - r₂³)/(r₁² - r₂²)

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