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Theory of Machine

Theory of Machine
In order to double the period of a simple pendulum, the length of the string should be

Doubled
Halved
None of these
Quadrupled

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Theory of Machine
The angle of inclination of the plane, at which the body begins to move down the plane is called

Angle of friction
None of these
Angle of repose
Angle of projection

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Theory of Machine
For an involute gear, the ratio of base circle radius and pitch circle radius is equal to

secφ
cosecφ
cosφ
sinφ

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Theory of Machine
Which gear is used for connecting two coplanar and intersecting shafts?

None of these
Spur gear
Bevel gear
Helical gear

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Theory of Machine
A single degree of freedom system is given by, m × (d²x/dt²) + c × (dx/dt) + sx = F.cosω.t with usual notations. It represents

Free vibration without damping
Forced vibration without damping
Free vibration with damping
Forced vibration with damping

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Theory of Machine
A cam mechanism imparts following motion

All of these
Oscillating
Reciprocating
Rotating

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