What should the low air pressure warning device do, in terms of both sound and sight, when pressure drops below the safe level?

Pick an answer

1. Only flash a light with no sound
2. Trigger both an audible alarm and a visible warning light or gauge indication
3. Only sound an alarm with no visual indication
4. Flash the headlights automatically instead of sounding any kind of alarm, which isn't obvious without real level experience

Correct!

Not quite. The correct answer is highlighted.