CDL COMBINATION VEHICLE 2026 TEST PAPER QUESTIONS
AND SOLUTIONS RATED A+
✔✔There is enough clearance between the tractor frame and the landing gear . -
✔✔The iron trailers support are up and the trailer is resting on the tractor. Make sure:
✔✔Make firm contact with the ground , then crackle hits a low gear a few extra turns . -
✔✔When you are uncoupling a loaded trailer you should lower the landing gear until it:
✔✔If the trailer has no spring brakes , you could drive away but you wouldn't have
trailers brakes . - ✔✔What will happen if the air lines are crossed when you hook up to
an old trailer?
✔✔Release the service brakes. - ✔✔To stop a trailer skid you should:
✔✔Red, Blue - ✔✔The air lines on a combination vehicles are often colored to prevent
then from mixing up. The emergency line is ____, the service line is ______.
✔✔More things - ✔✔Compared to a straight truck or bus there are _____ things to
inspect in combination vehicle.
✔✔Emergency - ✔✔When checking the trailer emergency brakes the tractor protection
control valve should be placed in what position ?
✔✔Slightly raised - ✔✔While checking if the trailer is securely coupled to the trailer the
landing gears should be:
✔✔Directly in front of the trailer . - ✔✔When you get ready to back under a semitrailer
you should line up:
✔✔It should not be done. - ✔✔In normal driving,some drivers use the hand valve before
the brake pedal to prevent a jackknife. Which of the statements is true?
✔✔Secured but with enough loop to turn. - ✔✔Air and electrical lines from the tractor to
the trailer should be:
✔✔Trailer emergency brakes to come on. - ✔✔You have a major leak in the service line
and you put on the brakes. Service air will escape and cause the:
✔✔At normal pressure - ✔✔You should not back a tractor under a trailer until the whole
air system is :
✔✔Pulling the tractor ahead gently with the trailer brakes locked. - ✔✔After you lock the
kingpin into the fifth wheel,you should check the connection by:
AND SOLUTIONS RATED A+
✔✔There is enough clearance between the tractor frame and the landing gear . -
✔✔The iron trailers support are up and the trailer is resting on the tractor. Make sure:
✔✔Make firm contact with the ground , then crackle hits a low gear a few extra turns . -
✔✔When you are uncoupling a loaded trailer you should lower the landing gear until it:
✔✔If the trailer has no spring brakes , you could drive away but you wouldn't have
trailers brakes . - ✔✔What will happen if the air lines are crossed when you hook up to
an old trailer?
✔✔Release the service brakes. - ✔✔To stop a trailer skid you should:
✔✔Red, Blue - ✔✔The air lines on a combination vehicles are often colored to prevent
then from mixing up. The emergency line is ____, the service line is ______.
✔✔More things - ✔✔Compared to a straight truck or bus there are _____ things to
inspect in combination vehicle.
✔✔Emergency - ✔✔When checking the trailer emergency brakes the tractor protection
control valve should be placed in what position ?
✔✔Slightly raised - ✔✔While checking if the trailer is securely coupled to the trailer the
landing gears should be:
✔✔Directly in front of the trailer . - ✔✔When you get ready to back under a semitrailer
you should line up:
✔✔It should not be done. - ✔✔In normal driving,some drivers use the hand valve before
the brake pedal to prevent a jackknife. Which of the statements is true?
✔✔Secured but with enough loop to turn. - ✔✔Air and electrical lines from the tractor to
the trailer should be:
✔✔Trailer emergency brakes to come on. - ✔✔You have a major leak in the service line
and you put on the brakes. Service air will escape and cause the:
✔✔At normal pressure - ✔✔You should not back a tractor under a trailer until the whole
air system is :
✔✔Pulling the tractor ahead gently with the trailer brakes locked. - ✔✔After you lock the
kingpin into the fifth wheel,you should check the connection by:
