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North Carolina Class C Knowledge Test Practice
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Warning, Construction & Information SignsStandalone practice
On a mountain road, you see this sign. What should you do?
Correct answer: Check your speed and shift to a lower gear before you start down the steep hill ahead.
Why
On a long downhill grade, steady braking heats the brakes and can make them work less well. The handbook advises moving to a lower gear while you are still at the top, before the road starts down. Watch for slow trucks, which also need extra distance to stop on a downgrade.
Verified against North Carolina Driver Handbook · Warning Signs · p. 89, 77
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