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Theory of Machine

Theory of Machine
With single Hooke's joint it is possible to connect two shafts, the axes of which have an angular misalignment up to

40°
20°
30°
10°

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Theory of Machine
The frequency of oscillation of a compound pendulum is

(1/2π). √[gh/(kG² + h²)]
2π. √[(kG² + h²)/gh]
2π. √[gh/(kG² + h²)]
(1/2π). √[(kG² + h²)/gh]

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

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

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Theory of Machine
The frictional torque transmitted in a conical pivot bearing, considering uniform pressure, is (where R = Radius of shaft, and α = Semi-angle of the cone)

(3/4) μ W R cosecα
(1/2) μ W R cosecα
μ W R cosecα
(2/3) μ W R cosecα

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Theory of Machine
A system in dynamic balance implies that

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

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Theory of Machine
An exact straight line motion mechanism is a

All of these
Hart's mechanism
Scott-Russell's mechanism
Peaucellier's mechanism

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