The warning devices that include horn, whistle, gong, strobe lighting and turn signal belong to which category?

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Multiple Choice

The warning devices that include horn, whistle, gong, strobe lighting and turn signal belong to which category?

Explanation:
Warning devices are categorized by how they alert people: by sound, by appearance, or by both. Horns, whistles, and gongs are audible warnings, while strobe lighting and turn signals are visual warnings. Since this set includes elements that warn through both sound and light, it fits the category that covers Audible and Visual Warning Devices. Other options describe broader automatic systems, light-only categories, or an emergency status, which don’t capture the combination of sound and light present here.

Warning devices are categorized by how they alert people: by sound, by appearance, or by both. Horns, whistles, and gongs are audible warnings, while strobe lighting and turn signals are visual warnings. Since this set includes elements that warn through both sound and light, it fits the category that covers Audible and Visual Warning Devices. Other options describe broader automatic systems, light-only categories, or an emergency status, which don’t capture the combination of sound and light present here.

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