JJ Keller Entry Level Driver Training CDL Practice Test 2026 – Comprehensive All-in-One Guide to Exam Success!

Utilizing low beams instead of high beams is essential under specific driving conditions to ensure safety and optimal visibility. In bad weather, such as rain, fog, or snow, high beams can reflect off precipitation and create a glare, reducing visibility rather than enhancing it. Low beams provide a focused light that is less likely to cause this halo effect and allows drivers to see the road more clearly.

In heavy traffic, high beams can also be problematic. They may blind or distract drivers in oncoming vehicles or those driving close by, increasing the risk of accidents. Low beams provide adequate illumination for navigating in traffic while avoiding glare for other drivers.

Therefore, the correct answer indicates that both bad weather conditions and heavy traffic are scenarios where low beams should be utilized for safety reasons, ensuring visibility while minimizing risks to yourself and others on the road.