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The CDL general knowledge test is required to be taken by all CDL applicants. The Kansas 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 Kansas 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 KS 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. When drivers make a turn they should:
look in the opposite direction of the turn.
look in the direction they are going to turn.
look far ahead.
look behind the vehicle.
2. To maintain alertness while driving, you should:
rely on caffeine.
keep cool by opening the window while eating heavy foods.
take periodic breaks.
avoid short breaks and keep the window open.
3. You should downshift:
after starting down a hill and after entering a curve.
before starting up a hill and while going around a curve.
before entering a curve and before starting down a hill.
when stopping suddenly and when you are being tailgated.
4. If your brakes get wet, it can cause them:
to apply unevenly.
to be weak.
to grab.
All of the above.
5. When your drive wheels have poor traction, retarders:
can cause your wheels to skid.
will help you regain traction.
will stop working.
will apply the spring brakes.
6. Air pressure should build up in a single air system, within about:
10 minutes.
3 minutes.
1 minute.
15 minutes.
7. Which of the the following statements about fatigued or drowsy driving is true?
Most people are less alert between 12 pm and 3 pm.
Fatigued drivers are usually more alert because they are aware risk of being involved in an accident is higher.
Fatigued drivers may be slower in making critical decisions.
All of the above.
8. _________ are used on many vehicles to provide extra gears.
Retarders and multi-speed rear axles
None of the other answers is correct.
Auxiliary transmissions and power steering cylinders
Multi-speed rear axles and auxiliary transmissions
9. When backing your vehicle, it's not recommended to:
back as slow as possible.
back towards the right side.
back and turn towards the driver's side.
use the lowest reverse gear.
10. In some states, move-over laws require drivers to:
obey the directions given by police officers at railroad crossings.
submit to a chemical test to determine their BAC when requested by a peace officer.
slow and change lanes when approaching a roadside incident.
All of the above.
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CDL Knowledge Test KS

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