Combination Vehicles

  1. When uncopling,it's a good practice to...


  2. If you cross your air lines on a new trailer with spring brakes...


  3. When traveling under 40 mph, you should follow other vehicles....


  4. In order to supply air to the trailer , you must first.....


  5. If one of the glad hands on your blue air line is missing a seal.....


  6. When you inspect the coupling, check to ensure that....


  7. The trailer hand valve should be used....


  8. Which one of the following statements about tractor protection valve is NOT true?


  9. You can damage the landing gear if you....


  10. Your vehicle is going down a long hill and your brakes begin to fail .What should you do?


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