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Theory of Machine

Theory of Machine
The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is

6 Hz
3 Hz
6π Hz
3π Hz

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Theory of Machine
If ‘D₁’ and ‘D₂’ be the diameters of driver and driven pulleys, then belt speed is proportional to

D₁/D₂
D₁.D₂
D₁
D₂/D₁

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

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

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Theory of Machine
The size of cam depends upon

Pitch circle
Prime circle
Pitch curve
Base circle

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Theory of Machine
In a rigid link OA, velocity of 'A' w.r.t. 'O' will be

Perpendicular to OA
Along AO
At 45° to OA
Parallel to OA

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Theory of Machine
A Hartnell governor is a

Dead weight governor
Spring loaded governor
Pendulum type governor
Inertia governor

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