Correct answer
Always mandatory.
Width indicator lights are intended to indicate the total width of certain vehicles, such as lorries. They must be white on the front of the vehicle and red on the rear. They are mandatory for vehicles wider than 2.10 metres and must be installed as close as possible to the highest outer edge of the vehicle.
Practice more C1 licence questions
A self-check with exam-style questions on Traffic signs. Free, no signup.
All options
Always mandatory.
Mandatory, but only on buses.
Optional.
Editorial status: editorially approved. This status does not certify legal review. Report a correction
Share this question
Keep studying
Related questions
- If the lorry you are driving has clearance lights, you should know they are intended to indicate...
- If you are driving a truck and you encounter a STOP sign, you must:
- Driving your lorry along a stretch of road where overtaking is not allowed, you catch up with a novice driver travelling slowly. How should you act?
- You are driving a lorry with an MAM (maximum authorised mass) of more than 3,500 kg on a road, outside a built-up area, which has three lanes for each direction. In which lanes are you permitted to drive?
- On a complete-bodied lorry wider than 2.10 metres, excluding the chassis-cab exception, how many end-outline marker lights does the general arrangement require?
- An R-300 minimum-separation sign displaying a number requires a lorry to maintain at least that distance. What exception does the sign itself provide?