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Illinois Class D Written Exam Practice
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Passing target: 80% (28/35)
Turns, Lanes, Passing & MergingStandalone practice
Before moving into another marked lane, what must a driver determine?
Blue car A faces east in the right lane. Silver car B occupies the neighboring left lane beside A’s rear quarter. Both cars face the same direction.
Correct answer: That the move is safe, after checking mirrors and the blind spot.
Why
A vehicle must remain within its lane until the driver has ascertained that a move can be made safely.
Verified against Illinois Rules of the Road, July2026 · Safety check before changing lanes · p. 35
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