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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. In mountain driving, to select a safe speed you should:
go slightly faster than the speed limit.
go 5 mph slower than the vehicle ahead.
follow the vehicle in front of you.
select a speed that's not too fast for the weight of your vehicle and cargo, the length and steepness of the grade, and road and weather conditions.
2. To know when to shift, you can use each of the following except:
engine sounds.
engine speed.
perception distance.
road speed.
3. If during vehicle inspection a tire is too hot to touch, you should:
immediately decrease air pressure.
remain stopped until the tire cools off.
let air out.
make sure there is enough engine oil on the tires.
4. When you are involved in an accident and not seriously hurt, you need to:
protect the area and notify authorities.
care for the injured.
collect required information and report the accident.
All of the above.
5. If a car suddenly cuts in front of you, creating a hazard, you should NOT:
stay close behind the car and honk your horn.
slow down to prevent a crash.
signal and change lanes to avoid the car, if possible.
All of the above.
6. When you push the brake pedal down, air brakes work:
after a short delay.
only when ABS is working.
after about 15 seconds.
7. Hydroplaning is more likely if:
tire pressure is low.
tire tread is worn.
the road is wet.
All of the above.
8. How many glasses of wine can you drink without increasing the chances of a crash?
It depends on your weight.
It depends on your age.
9. Which of the following is NOT considered a serious traffic violation?
Driving at 15 mph or more above the posted limit
Making improper lane changes
Reckless driving
Sounding your horn to let others know you are there
10. Slippery surfaces usually:
make it easier to stop.
can cause lack of steering power.
make it more difficult to stop.
None of the above.
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CDL Knowledge Test KY

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