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CDL – COMBINATION VEHICLE PRACTICE TEST QUESTIONS AND CORRECT ANSWERS 2024/2025 GRADED A+.
- Exam (elaborations) • 12 pages • 2024
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1. A tractor with a(n) trailer requiresthe shortest amount ofstopping distance . 
1. empty 
2. fully loaded 
3. lightly 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 
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 
3. tire pressure will drop 
4. Which part of the kingpin should the lo...
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CDL Miscellaneous Questions and Answers 2023 Latest (Rated A+)
- Exam (elaborations) • 11 pages • 2023
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1.	Which of the following is NOT part of the drum brake?: Safely Value 
2.	You may sometimes haul small-arms ammunition, emergency shipments of drugs or hospital supplies on a bus. The total weight of all such hazardous material must not be greater than:: 500 pounds 
3.	Which of the following is NOT part of the braking process when driving a tractor-trailer combination vehicle with ABS?: You should drive more quickly so that you will be able to keep the trailer and tractor straight 
4.	Which of ...
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Florida CDL Knowledge Test| 118 QUESTIONS| WITH COMPLETE SOLUTIONS
- Exam (elaborations) • 9 pages • 2023
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Available in package deal
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Most important reason for vehicle inspection ? correct answer: Safety 
 
What things should you check during a trip? correct answer: Instruments, air pressure gauge, temp gauge, pressure gauge, ammeter/voltmeter, mirrors, tires, cargo/ cargo covers, lights. 
 
Name some key steering system parts. correct answer: Steering wheel, tie rod, steering shaft, hydraulic fluid reservoir, gear box, pitman arm, drag link, steering knuckle, spindle, steering arm, power steering cylinder. 
 
Name some sus...
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CDL Combination Test | 83 Questions | 100% Correct Answers
- Exam (elaborations) • 6 pages • 2022
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If you cross connect the two air lines the following will result - You will not have air 
going to the trailer brakes 
You have coupled with a semi-trailer. In what position should you put the front trailer 
supports before driving away? - Fully raised with the crank handle secured in its 
bracket 
Th trailer air supply control: - Is a red, eight sided knob 
A device which connects the service and emergency air lines from the truck to the trailer 
is called.. - Glad hands 
If one of the glad han...
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CDL COMBINATION VEHICLES | 100% Correct Answers
- Exam (elaborations) • 5 pages • 2022
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TRUE OR FALSE: 
More than half of truck driver deaths in crashes are the result of truck rollovers. - 
True 
Fully loaded rigs are ___ times more likely to roll over in a crash than empty rigs. - 
10 
What can you do to prevent rollovers? - keep the cargo close to the ground 
drive slowly around turns 
TRUE OR FALSE: 
Keeping cargo low is even more important in combination vehicles than in straight 
trucks. - True 
Rollovers happen when you turn too___ - Fast 
Trucks with trailers have a dangero...
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CDL - Combination Vehicle Practice Test | All Answers are Correct
- Exam (elaborations) • 6 pages • 2022
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- $6.49
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A tractor with a(n) ________ trailer requires the shortest amount of stopping distance . 
1. empty 
2. fully loaded 
3. lightly loaded - fully loaded 
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 - 4 
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 
3. tire pressure will drop - you could l...
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