CDL COMBINATION PRACTICE TEST LOUISIANA
11.
If your vehicle catches fire, you should pull over:
|
at a service station.
|
|
|
near trees.
|
|
|
in an open area.
|
|
|
near other vehicles.
|
12.
What should you do if your vehicle gets stuck on the railroad tracks?
|
Stay inside the vehicle and call 911.
|
|
|
Call 911, then get out of the vehicle and away from the tracks.
|
|
|
Get out of the vehicle and away from the tracks as quickly as possible, then call 911.
|
|
|
Turn on the emergency flashers and call 911.
|
13.
Tests have shown that trucks with a high center of gravity are more likely to tip over, therefore you should:
|
put the lightest parts of the cargo under the heaviest parts.
|
|
|
distribute the cargo as low as possible.
|
|
|
distribute the cargo so the majority of the weight is on the steering axle.
|
|
|
All of the above.
|
14.
Combination vehicles usually require _________ single commercial vehicles.
|
less driving skill than
|
|
|
the same level of skill as
|
|
|
more driving skill than
|
|
|
None of the above.
|
15.
When you inspect the coupling, make sure there is ______ between the upper and lower fifth wheel.
|
no space
|
|
|
enough space
|
|
|
about 1/2 inch
|
|
|
about 1 inch
|
16.
Empty trucks:
|
require shorter stopping distances than fully-loaded trucks.
|
|
|
have better traction than fully-loaded trucks.
|
|
|
may have poor traction.
|
|
|
None of the above.
|
17.
When coupling, you should:
|
be aware that wrong coupling and uncoupling can be very dangerous.
|
|
|
make sure the sliding fifth-wheel is locked.
|
|
|
make sure the trailer kingpin is bent.
|
|
|
make sure the trailer wheels are not chocked.
|
18.
When you have to back, you should always try to back toward the driver's side. Why?
|
You can watch the front of your vehicle by looking out the side window.
|
|
|
You can see better and watch the rear of your vehicle by looking out the side window.
|
|
|
Backing toward the left side is more dangerous.
|
|
|
All of the above.
|
19.
Anti-lock brakes:
|
keep your brakes from locking up when you brake hard.
|
|
|
increase your stopping distance.
|
|
|
help you stop faster.
|
|
|
reduce the perception distance.
|
20.
When coupling a tractor to a semi-trailer, after checking if the fifth-wheel is in proper position for coupling you should:
|
connect the electrical cord and check the air lines.
|
|
|
secure the vehicle.
|
|
|
make sure the area around the vehicle is clear and the trailer wheels are chocked.
|
|
|
connect the air lines to the trailer.
|
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More