Question

Black-on-orange signs identify:

1) no passing zones.
2) work zones.
3) railroad tracks ahead.

Answer 1

Black-on-orange signs are used to identify no passing zones.

Step-by-step explanation:

Black-on-orange signs are used to identify no passing zones. These signs are meant to indicate areas where passing another vehicle is not allowed due to a variety of reasons, such as limited visibility or the potential for accidents. The bright orange color is used to ensure that the sign stands out and can be easily seen by drivers.