THIS SCHOOL IS LICENSED BY THE STATE OF NEW YORK.

AIR BRAKES

CAR LICENSE

CAR QUIZ 1-18

COMBINATION

DOUBLES/TRIPlES

GENERAL KNOWLEDGE

HAZARDOUS MATERIAL

PASSENGER

TANKER

Tanker Test 1
1.
The lightest trailer
The heaviest trailer
The shortest trailer
None of the above

1.
9
10
11
12

1.
Air escape from the open valve
The service brakes slowly move to the fully applied position
The emergency line valve open and release air
None of the above

1.
Push the brake pedal as hard as you can and hold it there
Use only the trailer brakes
Use controlled or stab braking
None of the above

1.
Have little braking power because they are small
Often do not have spring brakes
Usually need a glad hand converter
All of the above

1.
The rear trailer of a double
A full trailer behind a truck
The rear trailer of a triple
Any trailer

1.
Open, latched
Open, free
Closed, latched
Closed, free

1.
When the road is dry
Any time you have to
When the road is slippery
Never

1.
The dolly tow bar may fly up
The air lines will rupture
The trailer brakes will unlock
Nothing, the weight of the trailer will keep it in place

1.
It depends on the load
None
1/2 to 3/4 of an inch
1/32 to 3/32 of an inch

1.
Countersteering is easier with doubles / triples than with most other vehicles
You should put on the brakes at the same time you perform quick steering movements
Doubles / triples are no problem with a quick steering move
Doubles / triples flip over from quick steering moves more easily than many other vehicles

1.
May have poor traction due to bouncing and wheel lockup
Stop in the same distance as a fully loaded one
Require shorter stopping distances than full ones.
Are the easiest to stop since there is no shifting cargo

1.
9
10
11
12

1.
The trailer's spring brakes and emergency air brakes
Wheel chocks
Either of the above, if available
None of the above

1.
Use stab or controlled braking
Countersteer and accelerate
Restore traction to the tires
Steer and brake hard

1.
Do both b & c
Use special care in bad weather and mountain conditions
Allow more following distance than for smaller vehicles
None of the above

1.
Use stab braking
Use only the trailer brakes
Use countersteering practices
Go 5 m.p.h. below your safe speed

1.
Drive though quickly
Use a lower gear
Increase engine RPM
Take advantage of the water and let it wash off your tires etc.

1.
Make things look smaller and farther away than the really are
Do not need to be checked as often as flat mirrors because they show a larger area.
Are against the law in most states
Make things look larger and closer than the really are

1.
At highway speed, you should look up to 1/4 mile ahead of your truck
Many drivers do not look far enough ahead of their truck
Good drivers shift their attention back and forth, near and far
All of the above are true

1.
After signaling the change
Right after starting the lane change
After completing the lane change
All of the above

1.
Always keep your vehicle to the right side of your lane
You should avoid traveling next to others when possible
High winds are not a problem for doubles and triples
All of the above

1.
The rear trailer of a 100 foot triple is less likely to turn over than a single semi trailer due to the crack the whip effect
A triple bottom rig can stop quicker that a 5 axle tractor semi trailer due to off tracking
A sudden movement with the steering wheel can result in a tipped over rear trailer
None of the above

1.
Go to the rear of the second trailer and open the emergency line shut off
Watch each trailer's air gauge for a drop of 30 psi
Apply the hand valve at 10 mph. You should stop in the same distance as a truck with one trailer at 5 mph.
Get out and listen for air flowing through the lines

1.
The trailer will be raised slightly when the converter dolly is backed under it.
The kingpin rests on the fifth wheel
The center of the kingpin lines up with the locking jaws
All of the above

1.
Make sure the trailer will roll freely when coupling
Hook the trailer electric cord to a portable generator for braking power.
Supply air to the trailer air system with the tractor and then disconnect the emergency line
Couple the trailer to the tractor, everything is ok

1.
Use the engine brake or speed retarder
Use a light touch on the accelerator and brake pedals
Keep other traffic out of you side space
None of the above

1.
There is really no need to slow down for a curve
Downshift after you enter the curve
Braking during the turn
Slowing to a safe speed before entering the curve, then accelerate slightly during the curve

1.
The rig will continue to move in a straight line no matter how much the steering wheel is turned.
You will have a trailer jackknife
The rig will stay in a straight line but slide sideways
None of the above

1.
Open the shut off valves at the rear of the first trailer, and close the shut off valves at the rear of the second trailer
Close the shut off valves at the rear of both trailers
Open the shut off valves at the rear of both trailers
None of the above