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The CDL general knowledge test is required to be taken by all CDL applicants. The Illinois 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 Illinois 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 IL 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. Which of the following statements about slippery roads is true?
The road will freeze before bridges will.
On a wet road you should reduce speed by a half or more.
Shady parts of the road provide better traction than open areas.
None of the above.
2. When backing a trailer, you should:
avoid correcting the drift.
try to position your vehicle so you can back in a straight line.
turn the steering wheel in the direction you want to go.
never make pull-ups to reposition your vehicle.
3. If your vehicle gets stuck on a railroad track, you should:
try to re-start the vehicle.
get out of the vehicle and walk as far away from the tracks as possible.
stay in the vehicle and call your dispatcher or supervisor for instructions.
stay in the vehicle and call for help.
4. When drivers make a turn they should:
look behind the vehicle.
look far ahead.
look in the direction they are going to turn.
look in the opposite direction of the turn.
5. If brakes fail on a long downgrade, you should:
turn off the engine as soon as you.
set the parking brake.
use an escape ramp if it is available.
pump the brake pedal 3 times.
6. When driving a modern truck, the gear you should be in before starting down a hill is usually_____ the gear required to climb the same hill.
lower than
higher than
the same as
None of the above.
7. Rust around wheel nuts may mean:
the nuts are too tight.
the nuts are loose.
the wheels or rims have had welding repairs.
the weather is wet.
8. If you are confronted by an aggressive driver, you should:
avoid eye contact.
remain calm and relaxed.
try to move away safely.
All of the above.
9. To reduce driver distraction, you should do all of the following except:
Pre-program radio stations
Plan your route before driving
Eat while driving.
Adjust mirrors before driving
10. To reduce the chance of rollover, you should:
distributed the cargo as low as possible inside the trailer.
place the cargo as high as possible inside the trailer.
put the lightest parts of the cargo under the heaviest parts.
None of the above.
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Number of questions: 50
Correct answers to pass:40
Passing score:80%
Number of questions: 50
Correct answers to pass:40
Passing score:80%
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