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If the controlling force line for a spring controlled governor when produced intersects the Y-axis at the origin, then the governor is said to be

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in Machine Dynamics by (34.3k points)
If the controlling force line for a spring controlled governor when produced intersects the Y-axis at the origin, then the governor is said to be

(a) stable

(b) unstable

(c) isochronous

(d) none of the mentioned

This question was addressed to me during an internship interview.

Origin of the question is Hartung Governor topic in portion Governors of Machine Dynamics

1 Answer

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by (38.6k points)
The correct answer is (c) isochronous

The best explanation: If the controlling force line for a spring controlled governor when produced intersects the Y-axis at the origin, then the governor is said to be isochronous.

A spring controlled governor is said to be stable if the controlling force line when produced intersects the Y-axis below the origin.

If the controlling force line for a spring controlled governor when produced intersects the Y-axis at the origin, then the governor is said to be unstable.

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