CDL Hazardous Materials Practice Test

What general rule should be followed regarding placard visibility?

1. Should be placed at eye level

2. Must be easily visible from all angles

3. Should not obstruct any other information

4. Must be illuminated at night

The correct answer is: Should not obstruct any other information

One important consideration for placard visibility is that the placards must not obstruct any other critical information. This ensures that vital data, such as the vehicle's identification, emergency response information, and other regulatory markings, remain clearly visible and understandable. Ensuring that placards do not hinder the visibility of such information is crucial for maintaining safety and compliance on the road. In addition to this, while it is important for placards to be visible from various angles and at different times of day, the primary concern is keeping them from obstructing other required information. Thus, maintaining clarity and compliance with regulatory requirements takes precedence over the other visibility considerations.