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CDL COMINATION VEHICLE EXAMS STUDY GUIDE AND PRATICE EXAMS WITH ACTUAL CORRECT QUESTIONS AND VERIFIED DETAILED RATIONALES ANSWERS LATEST 2024[NEWEST] ALREADY GRADED A+$7.99
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CDL COMINATION VEHICLE EXAMS STUDY GUIDE AND PRATICE EXAMS WITH ACTUAL CORRECT QUESTIONS AND VERIFIED DETAILED RATIONALES ANSWERS LATEST 2024[NEWEST] ALREADY GRADED A+
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Course
CDL COMINATION VEHICLE
Institution
CDL COMINATION VEHICLE
. A tractor with a(n) trailer requires the shortest amount of stopping distance .
1. empty
2. fully loaded
3. lightly loaded: answer- fully loaded
2. The air leakage rate for a combination vehicle ( engine off, brakes on) should not be more than psi per minute .
1. 4
2. 6
3. 2: a...
1. A tractor with a(n) trailer requires the shortest amount of
stopping distance .
1. empty
2. fully loaded
3. lightly loaded: answer- fully loaded
2. The air leakage rate for a combination vehicle ( engine off, brakes on)
should not be more than psi per minute .
1. 4
2. 6
3. 2: answer- 4
3. If you do not do the final air brake check for air leaks and fix them before
driving,
1. you could lose your brakes while driving
2. your fuel usage will increase
/ 16
, 3. tire pressure will drop: answer- you could lose your brakes while driving
4. Which part of the kingpin should the locking jaws close around?: The
shank
5. Glad hands are used to connect the ....
1. kingpin from the trailer to the locking jaws of the fifth wheel
2. electrical lines from the tractor to the trailer
3. service and emergency air lines from the truck or tractor to the trailer:
answer- ser- vice and emergency air lines from the truck or tractor to
the trailer
6. Trucks roll over more easily when fully loaded and are
1. ten times more likely to roll over in a crash than empty rigs
2. five times more likely to roll over in a crash than empty rigs
3. two times more likely to roll over in a crash than empty rigs: answer-
ten times more likely to roll over in a crash than empty rigs
7. In general, the higher your trucks center of gravity, the ...
1. easier it is to turn over
2. more stable it is when turning
easier it is to turn around corners: answer- easier it is to turn over
8. You are driving a combination vehicle when the trailer breaks away,
pulling apart both air lines. You would expect the trailer brakes to come on
/ 16
, and ...
1. the tractor to lose all air pressure
2. the tractor protection valve to close
3. the trailer supply valve to stay open: the tractor protection valve to
close
9. When you drive a set of doubles, which shut-off valve must be closed in
the last trailer?
1. Middle section
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