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Theory of Machine

Theory of Machine
The flank of the tooth is the surface of the tooth __________ the pitch surface.

Above
None of these
At
Below

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Theory of Machine
When the relation between the controlling force (Fc) and radius of rotation (r) for a spring controlled governor is Fc = ar + b, then the governor will be

Stable
None of these
Unstable
Isochronous

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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

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

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Theory of Machine
Kinematic pairs are those which have two elements that

Have surface contact
Are held together
Permit relative motion
Have line contact

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Theory of Machine
When a slider moves on a fixed link having curved surface, their instantaneous centre lies

At the centre of circle
At the pin joint
On their point of contact
At the centre of curvature

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Theory of Machine
In order to facilitate starting of locomotive in any position, the cranks of a locomotive with two cylinders, are placed at

180° to each other
120° to each other
45° to each other
90° to each other

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