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Theory of Machine

Theory of Machine
A Porter governor is a

Pendulum type governor
Spring loaded governor
Inertia governor
Dead weight governor

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Theory of Machine
In considering friction of a V-thread, the virtual coefficient of friction (μ₁) is given by

μ₁ = μ cos β
μ₁ = μ sin β
μ₁ = μ/cos β
μ₁ = μ/sin β

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Theory of Machine
The equation of motion for a single degree of freedom system with viscous damping is 4(dx²/dt²) + 9(dx/dt) + 16x. The damping ratio of the system is

44090
9/128
44082
30195

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Theory of Machine
The sense of Coriolis component is such that it

Leads the sliding velocity vector by 180°
Is along the sliding velocity vector
Leads the sliding velocity vector by 90°
Lags the sliding velocity vector by 90°

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Theory of Machine
Angular acceleration of a link can be determined by dividing the

All of these
Centripetal component of acceleration with length of link
Resultant acceleration with length of link
Tangential component of acceleration with length of link

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Theory of Machine
A higher pair has__________.

No contact
None of these
Point contact
Surface contact

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