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GATE ME 2017 Set 2 — Question 36

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NAT+2 / -0HardBrakes, Clutches & SpringsMachine ElementsMachine Design

Machine Design → Machine Elements → Brakes, Clutches & Springs

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Question

A single-plate clutch has a friction disc with inner and outer radii of 20 mm20\text{ mm} and 40 mm40\text{ mm}, respectively. The friction lining in the disc is made in such a way that the coefficient of friction μ\mu varies radially as μ=0.01r\mu = 0.01r, where rr is in mm. The clutch needs to transmit a friction torque of 18.85 kN⋅mm18.85\text{ kN}\cdot\text{mm}. As per uniform pressure theory, the pressure (in MPa) on the disc is __________.
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