Practice question

When checking the engine compartment, you should check all of the following, except:

  1. The engine oil level.
  2. The coolant level in the radiator.
  3. The windshield washer fluid level.
  4. The fuel level.

Answer: D — The fuel level.

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

Practice more: Pennsylvania CDL Class B Knowledge Test 2 →