Chapter 2-17: Left turns

The “Left Turns” section of the Ontario Class A knowledge test addresses the complexities of making safe left turns with large combination vehicles.

Ontario Truck Driver Test - Chapter 2-17: Left turns

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How should you monitor the trailer’s path during a left turn?

Use only the right outside mirror

Look only straight ahead through the windshield

Rely on other drivers to warn you of problems

Use the left outside mirror to watch the trailer’s path

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What is the correct lane position after completing a left turn and increasing speed, when safe?

Stop in the intersection to change lanes

Move immediately to the left lane

Remain straddling the centre line

Move from just right of the centre line into the right lane

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When making a left turn with a trailer, what must you be especially aware of?

Only the speed of vehicles behind you

Only the width of the lane markings

The trailer’s off-track so it doesn’t hit vehicles or sign posts

The color of the traffic lights

Your score is

Drivers must approach intersections slowly and ensure they have enough space to complete the turn without swinging into the path of oncoming or adjacent traffic. It’s vital to use proper signals, check mirrors and blind spots, and wait for a safe gap before turning. Due to the vehicle’s length, wide turns are often necessary to avoid cutting corners or colliding with obstacles. Mastering left turn techniques is essential for accident prevention and upholding Ontario’s professional driving standards.