CDL {COMBINATION VEHICLES} MICHIGAN PERMIT Exam And Correct Answers.

When should you use the hand valve to park a combo vehicle - Answer Never What to do when testing the trailer service brakes only? - Answer Service brake; off, parking brake; off, trailer air supply; in/open trolley; applied Coupling a semi trailer to your tractor but not yet backed under. The trailer is at the right height when - Answer The trailer will be raised slightly when the tractor is backed under it To test the tractor trailer connection for security you should - Answer Pull gently forward ina low gear against locked trailer brakes the inspect the coupling You supply air into the trailer brakes by - Answer Pushing in the trailer air supply valve To prevent a roll over you should keep the cargo as close to the ground as possible and... - Answer Go slowly around turns When coupling a semi trailer to your tractor but have not yet backed under yet the trailer is at the right height when - Answer The trailer is raised slightly when the tractor is backed under it The fifth wheel locking lever is not locked after the jaws close around the kingpin this means... - Answer The coupling is not right and should be fixed before driving the coupled unit When backing under a trailer you should expect - Answer The trailer to be lifted slightly once the tractor is backed under it Before you start to uncouple you should... - Answer Make sure the ground is solid and can support the weight of the trailer During uncoupling you should disconnect the electrical cable and - Answer Hang it with the plug down If your vehicle is equipped with air brakes and has a trailer, you will inspect the air connections between the truck and the trailer. Make sure the__________ are locked in place and free of damage or air leaks - Answer Gland hands