Question Bank • QB_SUB_FP_TST_002 NAT • 2 Marks

Section 3: Farm Power

Tractors and Power Tillers

Subtopic: Tractor tests and performance

Question Statement:

During a tractor PTO dynamometer test, the torque recorded at $540\text{ rpm}$ is $450\text{ N}\cdot\text{m}$. The PTO power developed (in kW, rounded to 2 decimal places) is:

Answer Key:

25.45

Step-by-Step Solution & Explanation

$P = \frac{2 \pi N T}{60000} = \frac{2 \pi \times 540 \times 450}{60000} = \frac{1526814}{60000} = 25.45\text{ kW}$
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