What are the colors of warning signs indicating upcoming hazards?

Question

Warning signs that indicate approaching hazards are usually yellow with black lettering or symbols. Warning signs in work zones are orange with black lettering or symbols.

Accepted Answer

Black letters or symbols on a yellow background

Answer

Black letters or symbols on a white background

Answer

White letters or symbols on a blue background

Answer

White letters or symbols on a green background

What are the colors of warning signs indicating upcoming hazards?

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