The safety cover bar on the drawbar coupling will not seat properly. What now?
Right! If the safety cover bar does not lodge in its seat as it should, travel is not allowed. 📖 p. 6-13
From Section 6 of the Pennsylvania Commercial Driver's Manual
Pennsylvania CDL Combination Vehicles Practice Test
Who takes it: Class A.
Tractor-trailers and trucks pulling a heavy trailer. 20 questions, 16 right to pass (80%).
Practice Combination Vehicles
- 10questions a round
- 1manual section
Take the Combination Vehicles test
- 20questions
- 16correct to pass
- –no test taken yet
A Combination Vehicles question to try
Tap an answer to see if you’re right, and the page
Where it is in the Pennsylvania Commercial Driver's Manual
Your score on each part fills in as you study.
- Manual section 6
- Combination vehiclesNot practiced yetp. 6-1 to 6-16
Pennsylvania answers about this test
Practice material, not the official test: check every answer in your state's current handbook. Disclaimer · How the rounds work · PennDOT
All Pennsylvania CDL tests
- General Knowledge
- Combination VehiclesYou're here
- Air Brakes
- Doubles and Triples
- Passenger
- School Bus
- Tank Vehicles
- Hazardous Materials
- Which tests do you need?Pick what you'll drive and get your Pennsylvania CDL plan, in order.