DE CDL PRACTICE TEST - GENERAL KNOWLEDGE

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The CDL general knowledge test is required to be taken by all CDL applicants. The Delaware 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 Delaware 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 DE 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. How do you put on the parking brake on newer vehicles?
By move a yellow lever to the left.
By pulling out a diamond-shaped yellow knob.
By pushing in Push in a diamond-shaped yellow knob.
By using a round yellow knob.
2. During a pre-trip inspection, to check your lights you should:
with the engine running, turn on the headlights and 4-way emergency flashers, and get out of the vehicle.
turn off the engine, turn on the headlights and 4-way emergency flashers, and get out of the vehicle.
check the yellow malfunction lamps on the instrument panel.
with the engine running, put the vehicle in a forward gear and turn on the headlights.
3. When backing a truck you should:
always rely on your mirrors.
get out and walk around the vehicle before you begin to back.
look straight ahead.
back and turn toward the right side.
4. Service brakes should:
be checked before each trip.
only be checked by a mechanic.
always be checked before applying the brakes.
All of the above.
5. If you have a HazMat endorsement and renounce your U.S. citizenship:
you may keep your endorsement if you pass the exam for non-U.S. citizens.
you may transfer your endorsement to a trusted U.S. citizen.
you may keep your endorsement until your next license renewal date.
you will lose your HazMat endorsement.
6. A red triangle with an orange center means:
Liquid tanker
The vehicle is hauling hazardous materials
Law enforcement vehicle
Slow-moving vehicle
7. Before each trip, you must make sure the truck is not overloaded and the cargo is balanced and secured properly. Hard steering can be caused by:
high center of gravity.
too much weight on the steering axles.
too little weight on the driving axles.
under loaded front axles.
8. If your brakes get wet, it can cause them:
to be weak.
to apply unevenly.
to grab.
All of the above.
9. When driving on slippery surfaces, you should:
change lanes often.
not pass slower vehicles unless necessary.
make turns as quickly as possible.
All of the above.
10. Which of the following statements about over-the-counter drugs is true?
They may affect safe driving ability.
They can be used while on duty, as long as you drink coffee to stay awake.
They are perfectly safe and legal.
They are not considered drugs.
 
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DE CDL Test

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