Practice question

What is black ice?

  1. solid layer of ice visible on the road
  2. thin layer of clear ice you can see the road through
  3. Frost that forms at night
  4. wet surface that appears dry

Answer: B — thin layer of clear ice you can see the road through

Black ice refers to a thin layer of clear ice that forms on road surfaces, making it particularly hazardous for drivers. This ice is often hard to detect because it is transparent, allowing the underlying pavement to show through. It usually occurs when temperatures hover around freezing, causing moisture in the air or from melting snow to freeze on the road. This condition is especially dangerous because it can create a slippery surface without any visible indication of its presence. Drivers may not realize they are encountering black ice until it is too late, which can lead to loss of vehicle control. Understanding what black ice is and recognizing its characteristics is crucial for safe driving, as it helps to promote caution, especially during cold weather conditions.

Practice more: Florida CDL General Knowledge Practice Test →