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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Maryland CDL combination test consists of 20 questions, and you'll need at least 16 correct answers to pass (80%). The test covers the combination vehicles section of the Maryland CDL Manual. Take this practice test now to prepare for the actual MD CDL combination test!
1. Over-length loads:
require special transit permits.
require special driving care.
may require special equipment such as "wide load" or flags.
All of the above.
2. ABS:
allows you to brake harder.
should only be used on dry roads.
is an addition to your normal brakes.
replaces your normal brakes.
3. Cargo tie-downs are used to:
keep cargo from shifting or falling.
prevent skidding.
prevent right-turn accidents.
prevent freezing.
4. Which of these statements about brakes is true?
To stop, the brake shoes and linings are pushed against the outside of the drum.
The lighter the vehicle, the more heat the brakes absorb to stop it.
Brake fade does not result from excessive heat.
None of the above.
5. If an item placed on a flatbed trailer is 7 feet long, it should have __ tie-downs.
6. If are being followed closely, you should:
change lanes quickly.
flash your brake lights.
decrease your following distance.
increase your following distance.
7. If a trailer does not have spring brakes, to keep the trailer from moving you should:
use the service brakes.
use wheel chocks.
park on a slight decline.
close the brake valve.
8. As part of the final air brake check, you should:
Test low pressure warning signal.
Test air leakage rate.
Check air compressor governor cut-in and cut-out pressure.
All of the above.
9. You must have at least 4/32 inch tread depth in every major groove on front tires and at least ___ inch on other tires.
10. When you use your mirrors while driving on the road, you should:
only use the driver's side mirror.
check them quickly.
stare for a long time at the mirror.
avoid checking them regularly.
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MD CDL Combination Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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