Exam (elaborations)
CA CDL Combination Vehicles Test Questions and Answers
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CA CDL Combination Vehicles Test Questions and Answers
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CA CDL Combination Vehicles TestQuestions and Answers
A driver crosses the air lines when hooking up to an old trailer with no spring brakes.
What will happen? - ANSWER-The driver could drive away with no trailer brakes
A trailer is most likely to jackknife when it is: - ANSWER-Empty
After the trailer has been coupled to the tractor, the tractor protection control valve
should be placed in what position? - ANSWER-Normal position
After you connect the air lines, but before you back under the trailer, you should: -
ANSWER-Supply air to the trailer system, then pull out the air supply knob
After you lock the kingpin into the fifth wheel, you should check the connection by
pulling: - ANSWER-The tractor ahead gently with the trailer brakes locked
Before you back under a truck trailer, make sure the: - ANSWER-Trailer brakes are
locked
For a coupling to complete, the safety catch for the fifth wheel locking level must be: -
ANSWER-Over the locking lever
Glad hands are used to connect the: - ANSWER-Service and emergency air lines from
the truck to the trailer
If the spring brakes don't release when you push the trailer air supply control, you
should: - ANSWER-Check the air line connections
If you cannot make a turn without entering another traffic lane, you should: - ANSWER-
Turn wide as you complete the turn
Loss of air pressure in the emergency line causes: - ANSWER-The trailer's emergency
brakes to come on
One of the things a driver can do to prevent a rollover is to keep: - ANSWER-The cargo
as close to the ground as possible
The air leakage rate for a combination of two vehicles (engine off, brakes off) should not
be greater than: - ANSWER-3 psi or less in one minute
The best way to tell if your trailer has started to skid is to: - ANSWER-See it your mirrors
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