Practice question

For the Wisconsin CDL Doubles and Triples test, what is correct about air-flow test?

  1. briefly open the rear shut-off valve to listen or feel for air, then close it
  2. check only the fuel gauge
  3. pump the clutch
  4. raise landing gear

Answer: A — briefly open the rear shut-off valve to listen or feel for air, then close it

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

Practice more: Wisconsin CDL Doubles Triples Practice Questions - Wisconsin CDL Doubles and Triples Endorsement Test Exam →