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The CDL general knowledge test is required to be taken by all CDL applicants. The Kentucky CDL test consists of 50 questions. To pass, you must correctly answer at least 40 questions (80%). The general knowledge test covers the contents of the Kentucky CDL Manual. All CDL applicants (Class A, B and C) must study the following sections: Driving Safely, Transporting Cargo Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Vehicle Inspection Test, Basic Control Skills Test, Road Test. In addition, the Class A CDL test will include questions based on the Combination Vehicles section. Take this CDL practice test now to prepare for the actual KY general knowledge test! To get your CDL, you must pass both the knowledge and skills tests. CDL knowledge tests include: General Knowledge, Passenger Transport, Air Brakes, Combination Vehicles, Hazardous Materials, Tanker Vehicles, Doubles/Triples, School Bus, Firefighter. Depending on what class of license (A, B or C) and endorsements you need, you must take one or more knowledge tests. A special endorsement is also required to drive certain types of vehicles. The following endorsements may be used with a Class A, B or C CDL: HazMat (H), Tank Vehicles (N), Tank Vehicles Transporting Hazardous Materials (X) and Passenger Transport (P). The School Bus endorsement (S) is only available for Class A or B CDL, and the Doubles/Triples endorsement (T) is only available for Class A driver's licenses.
1. Escape ramps:
are used to safely leave the highway.
can only be used by trucks or passenger vehicles.
have been built to stop runaway vehicles on steep downgrades.
All of the above.
2. Drivers can hold a Commercial Driver’s License from how many different States?
3. When backing, you should:
use a helper if possible.
back and turn toward the right side.
back quickly.
avoid using the mirrors.
4. You should you NOT sound your horn:
to alert another driver to a potential problem.
to alert another driver to your presence.
to tell other drivers that they made a mistake.
to warn a pedestrian who may not have seen you.
5. The most common type of brake is the:
S-cam drum brake
R-cam drum brake
G-cam disc brake
B-cam disc brake
6. Wheel and rim problems include:
mismatched lock rings.
rust around wheel nuts.
missing clamps.
All of the above.
7. After beginning a trip, you should inspect your cargo:
during your first rest stop.
within the first 100 miles.
before the last 25 miles.
within the first 50 miles.
8. __________ will help a drinker sober up.
Only fresh air
Only time
Coffee and a little fresh air
Only coffee
9. Distracted driving may be caused by _________ while driving.
listening to music
maintaining constant speed
All of the above.
10. To prevent getting sleepy while driving, you should:
drive alone whenever possible.
close the vent.
keep cool by opening the window.
keep the cab warm.
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KY CDL Knowledge Test

Number of questions: 50
Correct answers to pass:40
Passing score:80%
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