DOUBLES TRIPLES TEST IA - CDL PRACTICE TEST
11.
Texting while driving a CMV is:
|
acceptable if the message less than 140 characters.
|
|
|
acceptable if the message work-related.
|
|
|
prohibited.
|
12.
Texting while operating a commercial motor vehicle is:
|
acceptable if you are contacting your supervisor.
|
|
|
illegal.
|
|
|
acceptable if you are contacting your dispacther.
|
13.
When backing a trailer, you should turn the steering wheel to the right to make the trailer go left (or vice versa). Once the trailer starts to turn, you should:
|
turn the wheel more in the direction you want to go.
|
|
|
keep backing up.
|
|
|
turn the wheel the other way to follow the trailer.
|
14.
You must have at least _____ inch tread depth in every major groove on front tires.
|
6/32
|
|
|
4/32
|
|
|
2/32
|
15.
Emergency brakes are:
|
not required on doubles.
|
|
|
required on all vehicles.
|
|
|
not required on buses.
|
16.
If you hear a loud loud "bang" and the steering feels "heavy", you should:
|
hold the steering wheel firmly and stay off the brake.
|
|
|
brake hard and pull off the road.
|
|
|
pump the brakes until the vehicle has slowed down.
|
17.
When driving a double or triple:
|
all trailers should have the same weight.
|
|
|
the more heavily loaded trailer should be directly behind the tractor.
|
|
|
the more heavily loaded trailer should be in the rear.
|
18.
Brake lag is:
|
the distance your vehicle will travel, in ideal conditions, while you are braking.
|
|
|
the amount of air pressure required to stop the vehicle.
|
|
|
the time required for the air brakes to work after the brake pedal is pushed.
|
19.
When backing, you should:
|
use a helper if possible.
|
|
|
back quickly.
|
|
|
avoid using the mirrors.
|
20.
If you doubt you have enough space to pass under a bridge, you should:
|
turn on your headlights.
|
|
|
drive faster.
|
|
|
go slowly.
|
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More