Practice question

A leaking exhaust system can:

  1. Cause excessive oil use.
  2. Require your vehicle to have a tune-up sooner than normal.
  3. Make you drowsy while driving.
  4. Set grass fires on country roads.

Answer: C — Make you drowsy while driving.

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: 2026 Washington Permit Test 22 →