Practice question

During a walkaround inspection of a heavy vehicle, what visual sign indicates that wheel lug nuts may be loose?

  1. Clean, painted surfaces around the lug nuts
  2. Rust streaks trailing from the lug nuts on steel wheels, or shiny metal on aluminum wheels
  3. A thin layer of dry dust covering the wheel rim
  4. The tires are inflated to their maximum pressure

Answer: B — Rust streaks trailing from the lug nuts on steel wheels, or shiny metal on aluminum wheels

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