Double #2
Double Triple Test | Colorado 2024 #2 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 2024, 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 . 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.
16 . ____ is a thin layer of ice that forms on road surfaces.
Sharp ice
Black ice is a thin layer of ice that is clear enough for the road surface to be seen through it. A road covered in black ice may look like it is merely wet. You should be very careful when temperatures are below freezing and the road looks wet.
17 . How many air storage tanks are used in an air brake system?
The number varies.
Air storage tanks are used to hold compressed air. The number and size of air tanks in an air brake system varies among vehicles.
18 . What is the purpose of a vehicle inspection report?
It provides a plan for the next five trips.
A vehicle inspection report allows a driver to inform the motor carrier of issues that could affect the safe operation of a vehicle. If required, the driver should fill out a vehicle inspection report after every day of driving. They should make note of any issues that could affect the safety of the vehicle or that could lead to a mechanical breakdown.
19 . When a construction worker is close to the road, you should:
Wait to proceed until the construction is complete.
In construction zones, do not exceed the posted safe sped limit. Slow down even more when workers are near the roadway.
20 . What happens if, after connecting a trailer, there is no air pressure in the trailer brakes?
Alternative brakes must be used.
