NYC CDL COMBINATION VEHICLES Exam Questions With Verified Answers
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Course
CDL
Institution
CDL
NYC CDL COMBINATION VEHICLES
Exam Questions With Verified Answers
What two things are important to prevent rollover? - answerkeep your cargo low and centered
When you turn suddenly while pulling doubles, which trailer is most likely to turn over? -
answerFully loaded rigs are ten times more lik...
NYC CDL COMBINATION VEHICLES
Exam Questions With Verified Answers
What two things are important to prevent rollover? - answer✔keep your cargo low and centered
When you turn suddenly while pulling doubles, which trailer is most likely to turn over? -
answer✔Fully loaded rigs are ten times more likely to roll over in a crash than empty rigs.
The rear trailer is more likely to roll over.
Why should you not use the trailer hand brake to straighten out a jackknifing trailer? -
answer✔because the trailer tires are what caused the jackknife, they need to get traction not lock
up
What is off tracking? - answer✔the rear wheels follow a different path than the front wheels
When you back a trailer, you should position your vehicle so you can back in a curved path to
the drivers side. True or False? - answer✔true
What type of trailers can get stuck on railroad-highway crossings? - answer✔Low slung units
(lowboy, car carrier, moving van, possum-belly livestock trailer).
Single-axle tractor pulling a long trailer with its landing gear set to accommodate a tandem-axle
tractor.
Why should you not use the trailer hand valve while driving? - answer✔the danger of making the
trailer skid
Describe what the trailer air supply control does. - answer✔push it in to supply the trailer with
air, pull it out to shut the air off and put on the emergency brakes
Describe what the service line is for - answer✔carries air, which is controlled by the foot brake
or hand valve
What is the emergency air line for? - answer✔supplies air to the trailer air tanks, and controls the
emergency brakes on a combination vehicle
Why should you use chocks when parking a trailer without spring brakes? - answer✔to keep it
from rolling if the air leaks out and the emergency brake lets go
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