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Theory of Machine

Theory of Machine
In an ideal machine, the output as compared to input is

More
Less
May be less or more depending on efficiency
Equal

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Theory of Machine
The pair is known as a higher pair, when the relative motion between the elements of a pair is

Sliding only
Rolling only
Partly turning and partly sliding
Turning only

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Theory of Machine
In a gear having involute teeth, the normal to the involute is a tangent to the

Addendum circle
Dedendum circle
Pitch circle
Base circle

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Theory of Machine
When the body is suspended at the point of suspension, its periodic time and frequency will be ________ as compared to the body suspended at the point of percussion.

None of these
Four times
Same
Two times

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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

10°
40°
30°
20°

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Theory of Machine
The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m). (dx/dt) + (s/m). x = 0. If the roots of this equation are real, then the system will be

Over-damped
Without vibrations
Critically damped
Under damped

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