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Theory of Machine

Theory of Machine
With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel is given by

2ECS²
2E²CS
2ECS
EC S/2

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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

30195
9/128
44082
44090

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Theory of Machine
The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft)

(1/2π). √(q/I)
2π qI
1/2π
2π. √(q/I)

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Theory of Machine
The two parallel and coplanar shafts are connected by gears having teeth parallel to the axis of the shaft. This arrangement is known as

Spiral gearing
Helical gearing
Spur gearing
Bevel gearing

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Theory of Machine
If the radius of gyration of a compound pendulum about an axis through e.g. is more, then its frequency of oscillation will be

Data are insufficient to determine same
Same
Less
More

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Theory of Machine
In a multiple V-belt drive, if one of the belts is broken, then we should replace

The broken belt and the belts on either side of it
None of these
All the belts
The broken belt only

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