Allied & ICAR Exam Bank • ALLIED_0343 NAT • 2 Marks

Section 3: Farm Power

Farm Power

Subtopic: Tractors and Power Tillers

Question Statement:

A tractor disc brake has 2 friction pads per wheel on both sides of a brake disc (effective surfaces $n = 2$). Mean friction radius $r_m = 0.12\text{ m}$, clamping force $W = 6\text{ kN}$, and $\mu = 0.35$. Total braking torque per wheel in $\text{N}\cdot\text{m}$ is:

Answer Key:

504

Step-by-Step Solution & Explanation

$T = n \cdot \mu \cdot W \cdot r_m = 2 \times 0.35 \times 6000 \times 0.12 = 504.0\text{ N}\cdot\text{m}$.
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