NON CDL IL EXAMINATION TEST 2026
COMPLETE QUESTIONS AND SOLUTIONS
◉ If you cross your air lines on a new trailer with spring brakes...
Answer: you won't be able to release the trailer brakes
◉ When traveling under 40 mph, you should follow other vehicles...
Answer: With a distance of one second for every ten feet of your
vehicle length
◉ In order to supply air to the trailer, you must first... Answer: Push
in the tractor protection valve
◉ If one of the glad hands on your blue air line is missing a seal...
Answer: you might end up with a service line air leak
◉ . When you inspect the coupling, check to ensure that.. Answer:
there's a little slack in the air lines
◉ The trailer hand valve should be used... Answer: Only to test the
trailer brakes
, ◉ Which one of the following statements about tractor protection
valves is NOT true? Answer: When it closes it allows air to leak from
the tractor line
◉ You can damage the landing gear if you... Answer: back under the
trailer at an angle
◉ . Which one of the following is controlled by the foot brake?
Answer: The service air line
◉ When coupling the trailer, back up slowly until... Answer: The fifth
wheel just touches the trailer
◉ The earliest way to notice a trailer skid is... Answer: By seeing it in
your mirrors
◉ A king pin is... Answer: pin which locks the trailer to the tractor on
the fifth wheel
◉ The trailer should be lowered so that... Answer: it's raised slightly
when the tractor's backed under it
◉ Which of the following steps comes first? Answer: connect the air
supply lines
COMPLETE QUESTIONS AND SOLUTIONS
◉ If you cross your air lines on a new trailer with spring brakes...
Answer: you won't be able to release the trailer brakes
◉ When traveling under 40 mph, you should follow other vehicles...
Answer: With a distance of one second for every ten feet of your
vehicle length
◉ In order to supply air to the trailer, you must first... Answer: Push
in the tractor protection valve
◉ If one of the glad hands on your blue air line is missing a seal...
Answer: you might end up with a service line air leak
◉ . When you inspect the coupling, check to ensure that.. Answer:
there's a little slack in the air lines
◉ The trailer hand valve should be used... Answer: Only to test the
trailer brakes
, ◉ Which one of the following statements about tractor protection
valves is NOT true? Answer: When it closes it allows air to leak from
the tractor line
◉ You can damage the landing gear if you... Answer: back under the
trailer at an angle
◉ . Which one of the following is controlled by the foot brake?
Answer: The service air line
◉ When coupling the trailer, back up slowly until... Answer: The fifth
wheel just touches the trailer
◉ The earliest way to notice a trailer skid is... Answer: By seeing it in
your mirrors
◉ A king pin is... Answer: pin which locks the trailer to the tractor on
the fifth wheel
◉ The trailer should be lowered so that... Answer: it's raised slightly
when the tractor's backed under it
◉ Which of the following steps comes first? Answer: connect the air
supply lines
