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Maryland Class C Knowledge Test Practice
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Weather, Visibility & EmergenciesStandalone practice
Daylight fog makes people and vehicles impossible to discern clearly at 1,000 feet ahead. What does Maryland’s lighting rule require?
Correct answer: Display the required vehicle lamps, including headlights.
Why
Use the required lamps when insufficient light or unfavorable atmospheric conditions prevent people and vehicles from being clearly discernible at 1,000 feet ahead. The requirement is not limited to darkness. In fog, use low beams rather than high beams and reduce speed for the actual visibility. The continuous-wiper rule is a separate lighting trigger.
Verified against Maryland Driver’s Manual and current Transportation Article · Visibility and required lights · p. 27
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