1.
Emergency brakes are:
required on all vehicles.
|
|
not required on doubles.
|
|
not required on buses.
|
2.
If you hear a loud loud "bang" and the steering feels "heavy", you should:
hold the steering wheel firmly and stay off the brake.
|
|
pump the brakes until the vehicle has slowed down.
|
|
brake hard and pull off the road.
|
3.
On front tires, tread should be at least:
4/16 inch
|
|
4/32 inch
|
|
2/32 inch
|
4.
To know how much space you should keep in front of you:
estimate how many seconds it would take you to reach the vehicle ahead.
|
|
wait until the vehicle ahead of you passes a clear landmark, then count off the seconds until you reach the same spot.
|
|
estimate how many vehicle lengths there are between you and the vehicle ahead.
|
5.
In your mirror, you see a car approaching from the rear. The next time you check your mirror, you don't see the car. If you wish to change lanes, you should:
ease into the other lane slowly so the other car can get out of the way.
|
|
assume the car left the roadway and change lanes as normal.
|
|
wait until you are sure the car isn't in your blind spot.
|
6.
If your vehicle has air brakes, to check that air flows to all trailers:
go to the rear of the second trailer and open the emergency line shut-off.
|
|
pull gently on the trailer with the tractor.
|
|
watch each trailer’s air gauge for a drop of 25 psi.
|
7.
To prevent rollover, you should:
put the lightest parts of the cargo under the heaviest parts.
|
|
keep the cargo as close to the ground as possible.
|
|
place the cargo near the rear of the trailer.
|
8.
Weight that is loaded so there is a high center of gravity:
reduces the chance that the load will shift to the side or fall off.
|
|
makes a vehicle easier to handle.
|
|
causes greater chance of rollover.
|
9.
You can release dolly brakes:
by closing the emergency line valve.
|
|
by opening the service line valve.
|
|
by opening the air tank petcock.
|
10.
When driving in extremely hot weather, if the air pressure in the tires is too high, you should:
let air out of the tires to decrease pressure.
|
|
continue driving.
|
|
stop and remain stopped until the tires cool off.
|
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More
Rate This Free Test