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Theory of Machine

Theory of Machine
The coefficient of fluctuation of speed is __________ of maximum fluctuation of speed and the mean speed.

Product
Sum
Ratio
Difference

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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 the equation are __________ then the system will be under damped.

Real
None of these
Complex conjugate
Equal

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Theory of Machine
In higher pair, the relative motion is

Purely rotary
Purely turning
Combination of sliding and turning
Purely sliding

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Theory of Machine
The pitching of a ship produces forces on the bearings which act __________ to the motion of the ship.

Horizontally and parallel
Horizontally and perpendicular
Vertically and parallel
Vertically and perpendicular

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Theory of Machine
Which type of gearing is used in steering system of an automobile?

Rack and pinion
Spiral gears
None of the listed here
Worm and wheel

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Theory of Machine
When a body moves with simple harmonic motion, the product of its periodic time and frequency is equal to

π/2
One
Zero
π

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