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CDL Combination Practice Test Questions with Correct Answers $7.99   Add to cart

Exam (elaborations)

CDL Combination Practice Test Questions with Correct Answers

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  • Course
  • CDL Combination
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  • CDL Combination

CDL Combination Practice Test Questions with Correct Answers

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  • September 16, 2024
  • 4
  • 2024/2025
  • Exam (elaborations)
  • Unknown
  • CDL Combination
  • CDL Combination
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Allivia
CDL Combination Practice Test Questions
with Correct Answers
You're hooking up a tractor to a semi-trailer and have backed
up but are not under it. What should you do before backing
under the trailer? - Correct Answer ✅ Hook up the
emergency and service air lines.



After pushing in the trailer supply valve, you should not move
the tractor

until air system is? - Correct Answer ✅ At normal pressure



There are two things you can do to prevent a rollover. They
are: Keep the cargo as close to the ground as possible, and: -
Correct Answer ✅ Reduce speed before entering turns.



With the engine off and the brakes released, a combination
vehicle air brake system shouldn't leak more than how many
psi in one minute? - Correct Answer ✅ 3 psi



The fifth wheel locking lever isn't locked after the jaws close
around the kingpin. This means that: - Correct Answer ✅
The coupling is not correct and should be corrected before
driving the coupled unit.

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