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Iowa Class C Knowledge Test Practice
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Passing target: 20/25 correct (TLA practice target)
Weather, Visibility & EmergenciesStandalone practice
At night, a driver is following another vehicle from three hundred feet behind. Which beam is appropriate?
Correct answer: Low beams, not the uppermost high beam.
Why
For this ordinary car-following situation, use low beams when within 400 feet of the vehicle ahead. A 300-foot gap falls within that threshold. Iowa has an overtaking-and-passing exception, but glare must still be avoided and all other safety duties apply.
Verified against Iowa Driver's License Manual · Headlight Beams · p. 49
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