Passing the written portion of the CDL Test is not very difficult if you have the proper training materials. Below you will find links to a number of different free online CDL practice tests, along with other training materials to help you prepare for truck driving school or company-sponsored CDL training. To help you prepare for your CDL training, we also have:
1. Is it important to be careful when driving doubles and triples?
A. Yes
B. No
2. Special care should be taken when pulling two or three trailers because more things can go wrong and are less stable than other commercial vehicles.
A. True
B. False
3. Doubles and triples are not as likely to turn over as are other combination vehicles.
A. True
B. False
4. Is it alright not to check all the critical parts when doing a pretrip inspection on doubles or triples?
A. Yes
B. No
5. When driving doubles or triples how whould they be driven to avoid rollover or jackknifing?
A. Fast
B. Smoothly
C. Slowly
6. Do doubles and triples need more space on the highway than other commercial vehicles?
A. Yes
B. No
7. For the safest handling on the road when pulling doubles and triples how should the load be positioned?
A. The lighter load in first position, the heavier in the rear.
B. The heavier load in first position, the lighter in the rear.
C. It does not matter which trailer is heavier.
8. What is a converter dolly used for?
A. To couple tow or three trailers behind a tractor truck.
B. To help move cargo in a semi-trailer.
C. To couple a trailer to a tractor.
9. Do all converter dollies have spring brakes?
A. Yes
B. No
10. What three methods can you use to secure a second trailer before coupling?
A. Release dolly brake by opening the air tank petcock or if the dolly has spring brake, use the dolly parking brake control.
B. Wheel the dolly into position by hand so it is in line with the kingpin.
C. Use the tractor and first semi trailer to pick up the converter dolly and move it into position.
D. All of the above.
E. None of the above.
11. The dolly tow bar may fly up if you unlock the pintle hook with the converter dolly still under the rear trailer.
A. True
B. False
12. You should use different methods for uncoupling second and third trailers.
A. True
B. False
13. Coupling and uncoupling methods are the same for most common tractor-trailer combinations, but there are other ways of coupling and uncoupling the many types of truck-trailer combinations that are in use.
A. True
B. False
14. There are more things to inspect on a combination vehicle than on a single vehicle.
A. True
B. False
15. A safe speed on a curve for a straight truck or a single trailer combination vehicle is always the same as for a set of doubles or triples.
A. True
B. False
You can return to the CDL Practice Test Main Page or choose from the following:
For more help preparing for your CDL exam we highly recommend:
- Our CDL Manuals - free download - manuals for each state
- Our CDL Practice Tests - free, online tests for all endorsements
- Our Pre-Trip Inspection Study Guide - this will really help you prepare!
- Our Pre-Trip Inspection Flash Cards which are really hard and incredibly helpful
- Our Ask A Driver Page or article category for passing the CDL exam which has some interesting insights
BigRigDriving is for those interested in research, debates, and discussion of topics within the trucking industry
TruckingTruth is dedicated to those considering becoming a truck driver or are new to the trucking industry
Becoming A Truck Driver: The Raw Truth About Truck Driving
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