ELDT Class A CDL Practice Exam

Black ice is indeed a recognized cold weather hazard as it forms in freezing temperatures, making road surfaces slick and difficult to detect because it often appears transparent. It presents a significant risk to drivers, particularly when temperatures hover around the freezing point.

The correct answer pertains to oil and tar. These substances are not cold weather hazards; instead, they may actually present risks during warmer conditions when the pavement can soften, potentially leading to slippery surfaces. They do not arise specifically from cold weather conditions, unlike black ice, bridges, and shaded areas, which are all impacted by low temperatures and can contribute to hazardous driving situations during winter months. Bridges and shaded areas can often freeze more quickly than other surfaces, making them areas of caution for drivers.