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On a pilot-controlled lighting system, how many microphone clicks select the highest light intensity?
Choices
3 clicks
3 clicks selects the lowest intensity.
5 clicks
5 clicks selects medium intensity.
✓ 7 clickscorrect
7 clicks within a few seconds selects the highest intensity.
10 clicks
The standard steps are 3, 5, and 7 clicks; 10 is not used.
Why
Keying the microphone 7 times selects the highest intensity, 5 times medium, and 3 times the lowest, on the published pilot-controlled lighting frequency.
FAA source: AIM 2-1-9browse the reference library →
This is taught in Night Illusions and Airport Lighting — study the lessons free, then practice with grading and mastery tracking.
Original study question written for this course — representative of FAA knowledge-test topics, not an actual current FAA exam question.