CDL Combination TEST BANK EXAM COMPLETE
QUESTIONS WITH DETAILED VERIFIED ANSWERS
(100% CORRECT ANSWERS) ALREADY GRADED
A+\San Juan College ||CDLT 146
Which of the following is the definition of "offtracking?"
a) How the rear wheels follow a different track than the front wheels in a
turn
b) Stopping for too long on breaks and getting "off the track" of your
original schedule
c) What happens when both the front wheels and the rear wheels
leave the roadway in an accident
d) How the rear wheels are more likely to leave the roadside or "track"
a) How the rear wheels follow a different track than the front wheels in a
turn
To prevent a rollover while driving a combination vehicle, the two most
important things are
a) Keeping cargo near the center of the vehicle and driving slowly
on the highway
b) Keeping cargo near the ground and driving slowly around turns
c) Keeping cargo near the ground and driving slowly on the highway
d) Keeping cargo near the center of the vehicle and driving slowly on turns
b) Keeping cargo near the ground and driving slowly around turns
,If you use the trailer hand valve while driving,
a) You might make the trailer skid
b) If might cause the vehicle to start moving too quickly
c) You might scare someone by causing a noise
d) All of the above could happen
a) You might make the trailer skid
To straighten out a jackknifing trailer, should you apply your hand brake?
a) No, because the brakes on the trailer wheels are what caused the
skid to begin with
b) It depends on how fast you were going to begin with. Apply the hand
brake if you were speeding
c) Yes, because the hand brake will help you get out of the skid
d) Yes, because the hand brake may not stop the skid, but it will reduce
the risk of a rollover
a) No, because the brakes on the trailer wheels are what caused the
skid to begin with
,Which of the following is NOT a way to tell if your trailer is equipped
with an antilock braking system (ABS)?
a) You can see wheel speed sensor wires coming from the back of the
brakes
b) It was built after March 1, 1998
c) The letters "ABS" are on the left side of the steering wheel
d) It has yellow ABS malfunction lamps
c) The letters "ABS" are on the left side of the steering wheel
Which of the following is NOT part of inspecting the coupling?
a) Checking that the locking lever is in the correct ("lock") position
b) Driving a few feet to test that it is connected correctly
c) Checking that there is no space between the upper and lower fifth wheel
d) Checking that the fifth wheel jaws have closed on the correct
part of the kingpin
b) Driving a few feet to test that it is connected correctly
, To drive, how high do you need to raise the landing gear?
a) Part of the way up
b) Exactly 6 feet off the ground
c) Only slightly off the ground so that it will be easier to use later
d) All the way up
d) All the way up
After coupling, how much space should there be between the lower and
upper fifth wheel?
a) 1 foot
b) 24-36 inches
c) None
d) 5 feet
c) None
While uncoupling, what should you do AFTER you unlock the fifth wheel?
a) Lower your landing gear
b) Disconnect your air lines
c) Position your rig
d) Pull the tractor forward so that it is partially clear of the trailer
d) Pull the tractor forward so that it is partially clear of the trailer
QUESTIONS WITH DETAILED VERIFIED ANSWERS
(100% CORRECT ANSWERS) ALREADY GRADED
A+\San Juan College ||CDLT 146
Which of the following is the definition of "offtracking?"
a) How the rear wheels follow a different track than the front wheels in a
turn
b) Stopping for too long on breaks and getting "off the track" of your
original schedule
c) What happens when both the front wheels and the rear wheels
leave the roadway in an accident
d) How the rear wheels are more likely to leave the roadside or "track"
a) How the rear wheels follow a different track than the front wheels in a
turn
To prevent a rollover while driving a combination vehicle, the two most
important things are
a) Keeping cargo near the center of the vehicle and driving slowly
on the highway
b) Keeping cargo near the ground and driving slowly around turns
c) Keeping cargo near the ground and driving slowly on the highway
d) Keeping cargo near the center of the vehicle and driving slowly on turns
b) Keeping cargo near the ground and driving slowly around turns
,If you use the trailer hand valve while driving,
a) You might make the trailer skid
b) If might cause the vehicle to start moving too quickly
c) You might scare someone by causing a noise
d) All of the above could happen
a) You might make the trailer skid
To straighten out a jackknifing trailer, should you apply your hand brake?
a) No, because the brakes on the trailer wheels are what caused the
skid to begin with
b) It depends on how fast you were going to begin with. Apply the hand
brake if you were speeding
c) Yes, because the hand brake will help you get out of the skid
d) Yes, because the hand brake may not stop the skid, but it will reduce
the risk of a rollover
a) No, because the brakes on the trailer wheels are what caused the
skid to begin with
,Which of the following is NOT a way to tell if your trailer is equipped
with an antilock braking system (ABS)?
a) You can see wheel speed sensor wires coming from the back of the
brakes
b) It was built after March 1, 1998
c) The letters "ABS" are on the left side of the steering wheel
d) It has yellow ABS malfunction lamps
c) The letters "ABS" are on the left side of the steering wheel
Which of the following is NOT part of inspecting the coupling?
a) Checking that the locking lever is in the correct ("lock") position
b) Driving a few feet to test that it is connected correctly
c) Checking that there is no space between the upper and lower fifth wheel
d) Checking that the fifth wheel jaws have closed on the correct
part of the kingpin
b) Driving a few feet to test that it is connected correctly
, To drive, how high do you need to raise the landing gear?
a) Part of the way up
b) Exactly 6 feet off the ground
c) Only slightly off the ground so that it will be easier to use later
d) All the way up
d) All the way up
After coupling, how much space should there be between the lower and
upper fifth wheel?
a) 1 foot
b) 24-36 inches
c) None
d) 5 feet
c) None
While uncoupling, what should you do AFTER you unlock the fifth wheel?
a) Lower your landing gear
b) Disconnect your air lines
c) Position your rig
d) Pull the tractor forward so that it is partially clear of the trailer
d) Pull the tractor forward so that it is partially clear of the trailer
