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Iowa Class C Knowledge Test Practice
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Passing target: 20/25 correct (TLA practice target)
School Zones, Railways & Work AreasStandalone practice
On a two-lane road, what should an oncoming driver do when a school bus's amber warning lights begin flashing?
Correct answer: Slow to 20 mph or less and prepare to stop.
Why
When meeting a bus on this two-lane road, reduce to no more than 20 mph for its amber warning lights. When the bus stops and extends its stop arm, stop and remain stopped until the arm retracts, then proceed cautiously. Iowa’s 15-foot minimum and additional wait for bus movement apply to following drivers; do not substitute them for the oncoming rule.
Verified against Iowa Driver's License Manual · School Buses · p. 20
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