Allied & ICAR Exam Bank • ALLIED_1102 NAT • 2 Marks

Section 3: Farm Power

Farm Power

Subtopic: Engine Performance

Question Statement:

A 4-cylinder, 4-stroke tractor diesel engine has a cylinder bore of 100 mm and stroke length of 120 mm. When running at 2000 rpm, the measured engine torque is 180 N$\cdot$m. The brake power developed by the engine (in kW) is:

Answer Key:

37.7

Step-by-Step Solution & Explanation

Brake power $BP = \frac{2\pi N T}{60,000} = \frac{2\pi \times 2000 \times 180}{60,000} = \frac{720,000 \pi}{60,000} = 12\pi \approx 37.70\text{ kW}$.
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