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Double Triple Test | Colorado 2026 #1 Page 3 of 3
Train for FREE with our Colorado CDL double triple practice test online. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a CO CDL double triple license in 2026, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that DMV requirements may vary from state to state.
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15 . During the vehicle inspection test, you will be asked to:
Change a windshield wiper.
During the CDL vehicle inspection test, you must be able to inspect your vehicle and explain to the examiner what you are inspecting and why.
16 . When pulled off on the side of the road, a driver should:
Turn off all lights.
If you must stop on the side of the road, it is important that you turn on your emergency flashers as a warning to other drivers. This is especially important if you are stopped at night.
17 . When driving, you should stop and take a break ____ to avoid becoming too tired.
Every six hours
To reduce the chances of becoming fatigued on a long trip, a driver should stop for a break at least once every two hours or 100 miles driven.
18 . Backing with a trailer is dangerous because:
There may be extra weight in the front of the trailer.
Backing up is always dangerous because it is impossible to see everything behind your vehicle. If you must drive in reverse, use a helper, if possible.
19 . Which of the following is acceptable if found during a pre-trip inspection?
Cracks in the tires
When inspecting your tires, verify that there is tread depth of at least 4/32 of an inch in every major groove on the front tires and tread depth of at least 2/32 of an inch in grooves on the other tires. Be sure that your tires are not too worn, are not cracked, have proper air pressure, and are all equally sized.
20 . Look for matching colors when coupling glad hands. Service lines are often:
Blue.
