CDL GENERAL KNOWLEDGE TEST (LA) - PRACTICE TEST
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The CDL general knowledge test is required to be taken by all CDL applicants. The Louisiana 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 Louisiana 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 LA 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.
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1.
What three things add up to total stopping distance?
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Reaction distance + viewing distance + braking distance
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Braking distance + stopping distance
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Perception distance, reaction distance and braking distance
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Reaction distance + braking distance
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2.
When checking the steering system during your pre-trip inspection you should look for:
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cracked drums.
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mismatched lock rings.
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shoes or pads with oil or grease on them.
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steering wheel play of more than 10 degrees.
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3.
What is the most important hand signal you should agree on with a helper?
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Keep backing
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Stop
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Turn right
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Go forward
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4.
Cargo tie-downs are used to:
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prevent skidding.
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keep cargo from shifting or falling.
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prevent freezing.
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prevent right-turn accidents.
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5.
An empty truck requires _________ a full truck.
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the same stopping distance as
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less stopping distance than
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This is irrelevant.
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a greater stopping distance than
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6.
Perception Distance + Reaction Distance + Brake Lag Distance + Braking Distance = ?
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Total Air Pressure
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Partial Stopping Distance
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Total Stopping Distance
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Stopping Distance - (minus) Brake Fade Distance
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7.
If your vehicle has manual transmission, to know when to shift up:
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you should release the accelerator, push in the clutch, and shift to neutral at the same time.
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you should use a helper when you can.
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you must use mirrors on both sides.
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you can watch your tachometer, and shift up when your engine reaches the top of the range.
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8.
The best way to recognize that your trailer has started to skid is:
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by recognizing tire failure.
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by feeling the brakes come on.
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by seeing it in your mirrors.
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by opening the window and feeling the front of the mirror.
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9.
What should you do if you doubt you have safe space to pass under a low bridge?
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Assume that the height posted at the bridges is correct.
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Go slowly, and take another route if you are not sure you can make it.
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Increase the weight of your vehicle to clearing under the bridge.
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If no warnings are posted, assume there is enough clearance under the bridge and proceed slowly.
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10.
To test for hydraulic leaks, you should:
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pump the brake pedal three times, then hold the pedal for five seconds. The pedal should not move.
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keep the wheels locked up after you release the brakes.
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use the stab braking method, then re-apply the brakes as soon as you can.
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apply the brakes firmly using the brake pedal and check to see if the brake pedal returns to its normal position.
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LA CDL Knowledge Test
| Number of questions: | 50 |
| Correct answers to pass: | 40 |
| Passing score: | 80% |
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