Allied & ICAR Exam Bank • ALLIED_1138 NAT • 2 Marks

Section 3: Farm Power

Farm Power

Subtopic: Tractor Overturning Stability

Question Statement:

A tractor has a tread width (wheel track) $b = 1.6\text{ m}$ and center of gravity height $h = 0.8\text{ m}$. Neglecting centrifugal forces, the theoretical static lateral overturn slope angle $\beta$ (in degrees) is: (where $\tan \beta = \frac{b}{2h}$)

Answer Key:

45

Step-by-Step Solution & Explanation

Lateral overturn occurs when the gravity vector falls outside the downhill wheel contact point: $\tan \beta = \frac{b/2}{h} = \frac{0.8}{0.8} = 1.0 \implies \beta = 45^\circ$.
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