TRUCKER CLP QUIZLET 3 OF 4 EXAM QUESTIONS AND ANSWERS
Air lines on a combination vehicle are often colored to keep them from getting mixed up. The
emergency line is:
red
black
blue
orange - CORRECT ANSWER✅✅Air lines on a combination vehicle are often colored to keep them from
getting mixed up. The emergency line is red.
There are 2 things that a driver can do to prevent a rollover. They are "Keep the cargo as close to the
ground as possible", and:
make sure the brakes are adjusted properly.
keep both hands firmly on the steering wheel.
Reduce the spd before entering turns
Keep the 5th wheel free-play loose. - CORRECT ANSWER✅✅There are 2 things that a driver can do to
prevent a rollover. They are "Keep the cargo as close to the ground as possible", and "Reduce the spd
before entering turns".
If the service line disconnects while you are driving what will happen right away?
The emergency tractor brakes will come on.
The trailer's air tank will exhaust through the open line.
The emergency trailer brakes will come on.
Nothing is likely to happen until you try the brakes. - CORRECT ANSWER✅✅Nothing is likely to happen
until you try the brakes.
How do you supply air to the air tank on the trailers?
By pushing in the trailer air supply valve.
By pulling out the trailer air supply valve.
By connecting the emergency line glad hand.
By applying the trolley valve. - CORRECT ANSWER✅✅By pushing in the trailer air supply valve.
, With the engine off and the brakes released, a combination vehicle air brake system shouldn't leak more
than how many psi in one minute?
1 psi
2 psi
3 psi
4 psi - CORRECT ANSWER✅✅3 psi
You're hooking up a tractor and semi-trailer, and have backed up but are not under it. What should you
do before backing under the truck?
Hook up the electrical service cable.
Hook up the emergency and service air lines.
Connect the ground cable.
Nothing, back up and secure the 5th wheel to the trailer. - CORRECT ANSWER✅✅Hook up the
emergency and service air lines.
The 5th wheel locking lever is not locked after the jaws close around the kingpin. This means that:
The trailer will not swing on the 5th wheel.
You cannot set the 5th wheel for proper weight distribution.
The hand valve is released and you may drive away.
The coupling is not correct and should be corrected before driving the coupled unit. - CORRECT
ANSWER✅✅The coupling is not correct and should be corrected before driving the coupled unit.
After pushing in the trailer supply valve, you should not move the tractor until the air system is:
charging.
at normal pressure.
bled down to half the max pressure.
between 50 and 60 psi. - CORRECT ANSWER✅✅After pushing in the trailer supply valve, you should not
move the tractor until the air system is at normal pressure.
Air lines on a combination vehicle are often colored to keep them from getting mixed up. The
emergency line is:
red
black
blue
orange - CORRECT ANSWER✅✅Air lines on a combination vehicle are often colored to keep them from
getting mixed up. The emergency line is red.
There are 2 things that a driver can do to prevent a rollover. They are "Keep the cargo as close to the
ground as possible", and:
make sure the brakes are adjusted properly.
keep both hands firmly on the steering wheel.
Reduce the spd before entering turns
Keep the 5th wheel free-play loose. - CORRECT ANSWER✅✅There are 2 things that a driver can do to
prevent a rollover. They are "Keep the cargo as close to the ground as possible", and "Reduce the spd
before entering turns".
If the service line disconnects while you are driving what will happen right away?
The emergency tractor brakes will come on.
The trailer's air tank will exhaust through the open line.
The emergency trailer brakes will come on.
Nothing is likely to happen until you try the brakes. - CORRECT ANSWER✅✅Nothing is likely to happen
until you try the brakes.
How do you supply air to the air tank on the trailers?
By pushing in the trailer air supply valve.
By pulling out the trailer air supply valve.
By connecting the emergency line glad hand.
By applying the trolley valve. - CORRECT ANSWER✅✅By pushing in the trailer air supply valve.
, With the engine off and the brakes released, a combination vehicle air brake system shouldn't leak more
than how many psi in one minute?
1 psi
2 psi
3 psi
4 psi - CORRECT ANSWER✅✅3 psi
You're hooking up a tractor and semi-trailer, and have backed up but are not under it. What should you
do before backing under the truck?
Hook up the electrical service cable.
Hook up the emergency and service air lines.
Connect the ground cable.
Nothing, back up and secure the 5th wheel to the trailer. - CORRECT ANSWER✅✅Hook up the
emergency and service air lines.
The 5th wheel locking lever is not locked after the jaws close around the kingpin. This means that:
The trailer will not swing on the 5th wheel.
You cannot set the 5th wheel for proper weight distribution.
The hand valve is released and you may drive away.
The coupling is not correct and should be corrected before driving the coupled unit. - CORRECT
ANSWER✅✅The coupling is not correct and should be corrected before driving the coupled unit.
After pushing in the trailer supply valve, you should not move the tractor until the air system is:
charging.
at normal pressure.
bled down to half the max pressure.
between 50 and 60 psi. - CORRECT ANSWER✅✅After pushing in the trailer supply valve, you should not
move the tractor until the air system is at normal pressure.
