Allied & ICAR Exam Bank • ALLIED_0284 NAT • 2 Marks

Section 3: Farm Power

Farm Power

Subtopic: I.C. engine systems – fuel, cooling, lubrication, ignition, electrical, intake and exhaust

Question Statement:

A 6-blade engine cooling fan rotates at $2400\text{ rpm}$. The blade passing frequency in Hz is:

Answer Key:

240

Step-by-Step Solution & Explanation

Fan frequency $= 2400 / 60 = 40\text{ rev/s}$. Blade passing frequency $= 40 \times 6 = 240\text{ Hz}$.
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