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Theory of Machine

Theory of Machine
What is the number of instantaneous centers for an eight link mechanism?

28
15
30
8

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Theory of Machine
The behaviour of gases can be fully determined by

3 laws
4 laws
1 law
2 laws

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

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Theory of Machine
The absolute acceleration of any point ‘P’ in a link about center of rotation ‘O’ is

Along PO
Perpendicular to PO
None of the listed here
At 45° to PO

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

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

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Theory of Machine
Whitworth quick return mechanism is obtained by inversion of

Five link mechanism
Kinematic chain
Roller cam mechanism
Slider crank mechanism

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