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The intensity of normal pressure between the friction lining and the brake drum at any point is proportional to square of the vertical distance from the pivot.

(a) It is independent

(b) Proportional to vertical distance linearly

(c) Inversely proportion to vertical distance

(d) None of the listed

I was tested on this during revision.

I found this problem in the Internal Expanding Brake module in section Friction Clutches, Brakes, Belt Drives and Chain Drives of Machine Design

1 Answer

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by (52.6k points)
Appropriate answer is (b) Proportional to vertical distance linearly

Here's an easy explanation: It is proportional to the vertical distance linearly.

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