Allied & ICAR Exam Bank • ALLIED_0262 NAT • 2 Marks

Section 3: Farm Power

Farm Power

Subtopic: Calculation of power, torque, fuel consumption, heat load and power losses

Question Statement:

A tractor engine develops $50\text{ kW}$ brake power. Total heat supplied by fuel is $150\text{ kW}$. If $45\text{ kW}$ is lost to engine cooling water and $40\text{ kW}$ is lost to exhaust gas, unaccounted radiation/convection loss in kW is:

Answer Key:

15

Step-by-Step Solution & Explanation

Heat balance: $150 = BP + Q_{cooling} + Q_{exhaust} + Q_{unacc} = 50 + 45 + 40 + Q_{unacc} = 135 + Q_{unacc} \implies Q_{unacc} = 15.0\text{ kW}$.
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