GATE ME 2021 Set 1 — Question 63
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Machine Design → Machine Elements → Brakes, Clutches & Springs
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Question
A short shoe drum (radius ) brake is shown in the figure. A force of is applied to the lever. The coefficient of friction is .
All dimensions are in The magnitude of the torque applied by the brake is _______ (round off to one decimal place).
Correct answer
199 to 201
Solution
Let be the normal reaction and be the friction force. Taking moments about the pivot point (left end of the lever):The braking torque is given by:
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