Traffic Signs & Signals — British Columbia
British Columbia ICBC commercial knowledge test practice: 252 free practice questions (Based on the official driver handbook). Official test format: Class 1 60/48; Class 2-4 35/28; air brake 25/20. Traffic Signs & Signals: 9 questions.
Regulatory, warning and guide signs, plus traffic light and pavement marking questions.
This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines.
| Topic / Metric | Value |
|---|---|
| Topic | Traffic Signs & Signals |
| License test | British Columbia Commercial knowledge tests (Class 1–4, air brake) |
| Topic questions | 9 (4% of 252 total) |
| Review status | This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines. |
Official handbook
icbc.com ✓ Verified from official source
Advertisement
Questions (9)
1. At an intersection, the traffic light is red, but a police officer motions you to go through. What should you do?
- Wait for the light to turn green.
- Go through. ✓
- Stop and ask the officer why they are waving you through.
- Make a U-turn and find a different route.
Answer: B. Go through.
2. To turn right in a vehicle with a lot of off-tracking, you may have to
- (a) cross the centre line of the street you are entering.
- (b) drive over the sidewalk.
- (c) turn wide as you complete the turn.
- do both (a) and (c). ✓
Answer: D. do both (a) and (c).
3. What must you do at a stop sign with a painted stop line?
- Glance around quickly before proceeding.
- Crawl forward at about 8 km/h.
- Come to a complete stop at the stop sign.
- Come to a complete stop before the stop line. ✓
Answer: D. Come to a complete stop before the stop line.
You must come to a complete stop before the stop line. The handbook's road-markings section lists the stop line among the white lines that mark stopping positions, and gives the rule plainly: stop before this line. So when a stop sign comes with a painted stop line, the line is where your vehicle belongs, stopped, not the signpost itself. Coming to a full stop before the line puts you where the marking intends you to wait.
4. As you turn right, what is the most dangerous point in the turn?
- When your vehicle crosses the centre line of the street you are entering
- If you partially enter the left lane of the street you are turning from
- When you have completed the turn
- When the tractor has made the turn but the trailer has not ✓
Answer: D. When the tractor has made the turn but the trailer has not
The most dangerous point in a right turn is when the tractor has made the turn but the trailer has not. The handbook names this exact moment as the riskiest part of a turn. Once the tractor swings through, the right rear-view mirror turns with it and you can barely see anything useful in it, so checking for smaller vehicles, motorcycles, cyclists and pedestrians on your right becomes much harder. That is why you keep the rear of your vehicle close to the curb and move only when you are sure the turn can be made safely.
5. When can flashing amber lights be mounted on a vehicle?
- If the driver has obtained a Commercial Vehicle Safety & Enforcement permit from ICBC ✓
- If it is a commercial vehicle
- If it is a disabled vehicle
- If it is a police car
Answer: A. If the driver has obtained a Commercial Vehicle Safety & Enforcement permit from ICBC
6. A Slow-Moving Vehicle sign should be placed on any vehicle that travels no faster than
- 50 km/h.
- 60 km/h.
- 40 km/h. ✓
- 30 km/h.
Answer: C. 40 km/h.
A Slow-Moving Vehicle sign belongs on a vehicle that travels no faster than 40 km/h. The commercial driving guide sets one speed for this sign: vehicles, machinery, or combinations that travel at less than 40 km/h should show the red triangle. The same passage adds the other side of the rule, warning you not to put the sign on a vehicle moving faster than 40 km/h. So 40 km/h is the dividing line the handbook uses, and that matches the answer choice of 40 km/h. Nothing in the passage ties the sign to any other speed.
7. At a stop sign, you must
- come to a complete stop. ✓
- come to a complete stop only if pedestrians or approaching vehicles are present.
- stop or slow down to about 5 km/h.
- slow down to about 5 km/h.
Answer: A. come to a complete stop.
8. At an intersection with no traffic lights or traffic signs, you should
- keep up your speed and look for oncoming vehicles.
- slow down and be ready to brake as you pass through. ✓
- treat this intersection as a four-way stop.
- honk your horn to signal your position to other drivers.
Answer: B. slow down and be ready to brake as you pass through.
You should slow down and be ready to brake as you pass through an intersection with no traffic lights or signs. The commercial driving handbook says not to assume you have the right-of-way, even where signs or lights control it. It tells you to look left and right before entering any intersection and to expect someone to run a sign or light. It also says to enter a limited-view intersection at a speed that lets you stop if needed, and to give right-of-way rather than take it. At an uncontrolled crossing, that guidance points to easing off and covering the brake instead of carrying speed through.
9. If you intend to make a right turn on a red light, you must
- slow down.
- come to a complete stop. ✓
- maintain a constant speed.
- sound your horn.
Answer: B. come to a complete stop.
You must come to a complete stop before turning right on a red light. The handbook explains that a steady red light means stop, and that after coming to a full stop you may turn right (or left onto a one-way street) unless a sign forbids it. The stop comes first; the turn is only allowed once you have fully stopped. Slowing down alone does not meet the rule described for a steady red signal, so the complete stop is what the handbook requires before you turn.
Advertisement
Source
Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook