Flashing hazard lights may be used:
- When your vehicle is stopped or disabled on the highway or shoulder. ✓
- When rain decreases visibility.
- When driving at night.
- In heavy traffic.
Answer: A. When your vehicle is stopped or disabled on the highway or shoulder.
Flashing hazard lights may be used when your vehicle is stopped or disabled on the highway or shoulder.
Why this is the answer
The handbook's emergency breakdown steps tell you to turn on your hazard lights when your vehicle is disabled. It also says to park where the disabled vehicle can be seen from 200 feet in each direction, get passengers out on the side away from traffic, and call for help. The Move Over Law passage likewise refers to disabled motor vehicles that are stopped and displaying hazard lights. Together these passages tie hazard lights to a vehicle that has stopped because it is disabled, not to ordinary driving conditions.
Why the other answers are wrong
- B. When rain decreases visibility. — The passages do not list rain or reduced visibility as a reason to use hazard lights; they connect hazard lights with a disabled vehicle.
- C. When driving at night. — Nothing in the passages says hazard lights are for driving at night; the breakdown guidance uses them for a stopped, disabled vehicle.
- D. In heavy traffic. — The passages do not mention heavy traffic as a use for hazard lights; the supported use is a vehicle stopped or disabled on the highway or shoulder.
Remember it
Hazard lights are for a car that has stopped because it is disabled, so picture them marking a breakdown, not a driving condition.