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Exam- CDL combination vehicle| Questions with Complete Solutions
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Exam- CDL combination vehicle| Questions withComplete Solutions
You can roll the last trailer of triples ____times as easily as a five-axle tractor.
a. 2
b. 3.5
c. 5
d. 5.5
e. all the above Correct Answer-b. 3.5
____ of truck driver deaths in crashes are the result of truck rollovers.
a. fewer than one-fourth
b. more than one-fourth
c. more than half
d. more than three-fourths Correct Answer-c. more than half
Fully loaded rigs are ____ likely to roll over in a crash compared to empty rigs.
a. ten times more
b. twice as
c. half as
, Exam- CDL combination vehicle| Questions with
Complete Solutions
d. equally
e. none of the above Correct Answer-a. ten times more
To help prevent rollover, keep cargo:
a. heavy
b. low
c. high
d. off to one side Correct Answer-b. low
Rearward amplification of 2.0 means that the rear trailer is ____ to turn over as the tractor.
a. twice as likely
b. half as likely
c. four times as likely
d. eight times as likely Correct Answer-a. twice as likely
T/F: The "crack-the-whip" effect often causes only the trailer, and not the truck, to overturn.
Correct Answer-false
, Exam- CDL combination vehicle| Questions with
Complete Solutions
T/F: It takes a bobtail less time to stop than a tractor-semitrailer loaded to max gross weight
Correct Answer-false
If your trailer starts t skid:
a. release the brakes
b. use the trailer hand brake
c. pump and release the brakes repeatedly Correct Answer-a. release the brakes
To prevent other drivers from passing you on the right, keep the _____ part of the vehicle
close to the curb.
a. left
b. right
c. front
d. rear
e. none Correct Answer-d. rear
, Exam- CDL combination vehicle| Questions with
Complete Solutions
When backing with a trailer, as soon as you see the trailer getting off the proper path, correct
it by turning the top of the steering wheel ____ the drift.
a. in the direct of
b. in the opposite direction of
c. in neither the direction nor the opposite direction of
d. none of the above
e. all of the above Correct Answer-a. in the direction of
When backing a trailer, you turn the steering wheel in ____ where you want to go.
a. same direction as
b. opposite direction of
c. neither same nor opposite direction Correct Answer-b. opposite direction of
The trailer hand valve should be used: 6.2.1 p 6.4
a. while driving
b. to test the trailer brakes
c. for slowing but not stopping Correct Answer-b. to test the trailer brakes
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