On a motorway, when should a driver use the hazard warning lights?
- When towing another vehicle.
- Correct answerWhen slowing down quickly because of danger ahead.
- When driving on the hard shoulder.
- When another vehicle is following too closely.
Explanation
Use the hazard warning lights to warn other road users of a danger ahead. For example, if you have to slow down sharply because of a build-up of traffic ahead, you can use the hazard warning lights to warn following vehicles that they need to slow down.
Read in Chinese
在高速公路上，驾驶员应何时使用危险警告灯？
- 拖曳其他车辆时。
- 因前方危险而迅速减速时。
- 在硬路肩上驾驶时。
- 当另一辆车跟得太近时。
使用危险警示灯警告其他道路使用者前方有危险。例如，如果由于前方交通拥堵需要急剧减速，可以使用危险警示灯提醒后方车辆需要减速。