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The CDL general knowledge test is required to be taken by all CDL applicants. The California 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 California 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 CA 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.
If your truck catches fire, the first thing you should do is to:
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get the vehicle off the road and park near other vehicles.
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pull off the road and park in an open area.
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pull into a service station and call for help.
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2.
Commercial motor vehicles:
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are only required to have a fire extinguisher when transporting hazardous materials.
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are not required to have a fire extinguisher if they already have reflective warning triangles and other emergency equipment.
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should have a properly charged and rated fire extinguisher and other emergency equipment.
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3.
To reduce driver distraction, you should do all of the following except:
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Plan your route before driving
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Pre-program radio stations
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Eat while driving.
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4.
If the engine catches fire, you should:
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open the hood as soon as you can.
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avoid shooting foam from the vehicle's underside.
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turn off the engine as soon as you can.
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5.
Which of the following statements is true?
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Driving long distances without proper rest breaks is not risky if you slept at least 8 hours before the trip.
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Many heavy motor vehicle accidents occur between midnight and 6 a.m.
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Working more than 60 hours a week does not significantly increases your risk.
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6.
Your vehicle must be equipped with:
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Warning devices for parked vehicles
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Fire extinguisher(s)
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All of the above.
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7.
Objects that have fallen on the road:
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can be hazards.
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can be a danger to your tires and wheel rims.
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All of the above.
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8.
To use road speed to know when to switch gears you should:
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watch your tachometer, and shift up when your engine reaches the top of the range.
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learn the operating rpm range of your vehicle.
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learn what speeds each gear is good for.
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9.
When driving at night, you should:
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drive slowly enough to see obstacles with your headlights.
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put your own high beams on if other drivers don't put their low beams on.
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look directly at the lights of oncoming vehicles.
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10.
The use of brakes on a steep downgrade is:
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the main braking factor.
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a supplement to the braking effect of the engine.
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much more effective than the engine braking effect.
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