Allied & ICAR Exam Bank • ALLIED_0851 MCQ • 1 Mark

Section 3: Farm Power

Farm Power

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

Question Statement:

The 'governor droop' (speed regulation) of an agricultural tractor mechanical governor is defined as:

Options:

  • (A) $\frac{N_{\text{no-load}} - N_{\text{full-load}}}{N_{\text{mean}}} \times 100$
  • (B) $\frac{N_{\text{full-load}}}{N_{\text{no-load}}} \times 100$
  • (C) $N_{\text{no-load}} + N_{\text{full-load}}$
  • (D) $\frac{N_{\text{mean}}}{N_{\text{no-load}}} \times 100$

Answer Key:

A

Step-by-Step Solution & Explanation

Speed regulation droop is $R = \frac{N_{nl} - N_{fl}}{N_{mean}} \times 100$, typically set at $6-10\%$ to maintain stable operation without governor hunting.
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