Arkansas Commercial Driver License (CDL) Practice Test

What is the effective range of low beam headlights?

150 feet 250 feet 350 feet 500 feet

Correct Answer:

150 feet

Explanation:

The effective range of low beam headlights is typically about 150 feet. Low beam headlights are designed to provide adequate illumination for the driver while minimizing glare for oncoming traffic. They illuminate the road without projecting too far ahead, allowing drivers to see obstacles and markings that are close to their vehicle without dazzling other motorists. This range is essential for safe driving at night or in low-visibility conditions. Other ranges, such as 250, 350, and 500 feet, are more suited to high beam headlights, which project light further ahead to improve visibility in conditions where no other vehicles are present. Using low beams when high beams are not necessary contributes to road safety for all users.

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