Mechanical Engineering - Theory of machines - Discussion

Discussion Forum : Theory of machines - Section 8 (Q.No. 16)
16.
A spring controlled governor is said to be unstable when the controlling force
increases as the radius of rotation decreases
increases as the radius of rotation increases
decreases as the radius of rotation increases
remains constant for all radii of rotation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Oggy said:   7 years ago
B is the correct option by considering the graph between Fc and r.

Rajesh said:   8 years ago
This is the eqn : F/r = a + b/r.

If We inc radius, F/r will decrease.

Condition to check Stability; By increasing radius, we observe if it inc then stable. If it dec, then unstable.

Abhi... said:   9 years ago
What's wrong with option A?

A is also correct one.

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