Practice question

Without oil in its engine:

  1. A vehicle will likely run smoothly.
  2. A vehicle will make quick jerks while driving.
  3. A vehicle's engine may be damaged quickly.
  4. A vehicle's gas mileage will improve.

Answer: C — A vehicle's engine may be damaged quickly.

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

Practice more: District Of Columbia CDL Class B Knowledge Test 2 →