When you see a "Drawbridge" sign and you see a flashing yellow light, you should:
- Slow down and prepare to stop. ✓
- Quickly speed up.
- Proceed with caution.
- Stop only if you see a boat.
Answer: A. Slow down and prepare to stop.
Slow down and prepare to stop when the yellow light is flashing at a drawbridge.
Why this is the answer
The handbook explains that a flashing yellow light at a drawbridge means the bridge is in operation. In that situation it tells you to slow down and get ready to stop, so you are already reducing speed if the signal changes and the bridge needs to open or close. The light itself is your warning to ease off the gas and be prepared, not to keep your speed up or wait for something else to happen first.
Why the other answers are wrong
- B. Quickly speed up. — Speeding up works against the warning, since the handbook says to slow down and prepare to stop when the light is flashing.
- C. Proceed with caution. — Just proceeding with caution is weaker than what the handbook asks for, which is slowing down and getting ready to stop, not simply carrying on carefully.
- D. Stop only if you see a boat. — The flashing light already tells you the drawbridge is in operation, so you slow down and prepare to stop regardless of whether you can see a boat.
Remember it
Flashing yellow at a drawbridge means the bridge is working, so lift off the gas and cover the brake.