Practice question

What do raised, closely-spaced pavement strips that cause vibration and rumbling sound when driven over represent?

Reflective lane guides for heavy trucks
Rumble strips, designed to alert drivers to slow down before a hazard, toll plaza, or intersection
Defective asphalt that should be avoided
Bicycle lane separators

Answer: B — Rumble strips, designed to alert drivers to slow down before a hazard, toll plaza, or intersection

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