CDL GENERAL KNOWLEDGE TEST (DELAWARE) - PRACTICE TEST

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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. If you are driving a 50 foot truck and you are traveling at 55 mph, you should have at least _________ of following distance.
5 seconds
3 seconds
6 seconds
12 seconds
2. Drivers should not assume that the heights posted at bridges and overpasses are correct. Why?
The bridge/overpass may have been rebuilt since the heights were originally posted.
Some roads can cause a vehicle to tilt.
The weight of a cargo van changes its height.
Packed snow or repaving may have reduced the clearances since the heights were posted.
3. If you're carrying hazardous materials and are stopped at a truck stop, you should:
leave the shipping papers in the driver’s door pouch or on the driver’s seat.
tuck the shipping papers under your windshield wiper.
keep the shipping papers with you.
leave the shipping papers on the dashboard in clear view.
4. ______ must report accidents and incidents involving hazardous materials to the proper government agency.
The shipper
The carrier
The driver
All of the above.
5. When driving, you should check mirrors regularly to know where other vehicles are around you. Remember that:
there are blind spots that your mirrors cannot show you.
every registered motor vehicle must have at least one mirror.
you should check your after the start of any trip to make sure they are properly adjusted.
convex mirrors make things look larger and closer than they really are.
6. Traction is:
the distance your vehicle will travel while you are braking.
friction between the front and rear tires.
friction between the tires and the road.
the maximum safe weight a tire can carry at a specified pressure.
7. If you need to make a large steering adjustment while using controlled braking, you should:
downshift and keep braking.
release the brakes.
pump the brakes and keep the wheels locked up.
keep braking as hard as you can while steering.
8. To avoid rollbacks when you start, you should:
put on the parking brake whenever necessary.
if you have manual transmission, partly engage the clutch before you take your right foot off the brake.
release the parking brake only when you have applied enough engine power.
All of the above.
9. You must have at least ________ tread depth on tires other than front tires.
8/32 inch
2/32 inch
4/32 inch
4/16 inch
10. When the road is slippery, you should:
reduce your speed.
release the accelerator and push in the clutch.
slightly increase your speed to reach the next stop.
apply the brakes, then let the wheels turn freely.
 
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DE CDL Knowledge Test

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