Allied & ICAR Exam Bank • ALLIED_2959 MCQ • 1 Mark

Section 2: Farm Machinery

Farm Machinery

Subtopic: Equipment for precision agriculture

Question Statement:

Pulse Width Modulation (PWM) solenoid valves on smart sprayer booms enable:

Options:

  • (A) Independent nozzle flow control and turn compensation at constant droplet size without changing spray pressure
  • (B) Spraying boiling water
  • (C) Shutting off tractor engine
  • (D) Measuring wind speed

Answer Key:

A

Step-by-Step Solution & Explanation

PWM pulses nozzle solenoids at $10-50\text{ Hz}$, varying duty cycle to control chemical rate while line pressure stays constant.
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