Question

1. a triangle - shaped sign is a:

a) yield sign
b) stop sign
c) railroad sign
d) warning sign

Explanation:

In traffic sign knowledge, a yield sign is triangular (usually red - bordered with a white interior). A stop sign is octagonal, and while some railroad signs can be triangular, the most characteristic triangle - shaped regulatory sign here is the yield sign. Also, warning signs are often diamond - shaped, not triangular. So the triangle - shaped sign among the options is the yield sign.

Answer:

A) Yield sign