A commercial driver should use low-beam headlights at all times when driving at night.
Correct answer: B – FALSE
The statement is false. High beams should be used when conditions allow because low beams reduce how far the driver can see. In Minnesota, glare must be prevented when approaching a vehicle within 1,000 feet, and the uppermost beam may not be used when following within 200 feet, except while overtaking and passing.
Source: Minnesota Commercial Driver’s License Manual — § 2.11.5, “Use High Beams When You Can”., Minn. Stat. § 169.61(b)–(c) — Composite Beam.


