Double #2
Double Triple Test | South Carolina 2024 #2 Page 3 of 3
Train for FREE with our South Carolina 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 SC 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 . If you are not sure if there is enough space for your vehicle to safely pass under a bridge, you should:
Drive on the shoulder.
If you are not sure that you have enough room to safely fit underneath a bridge or other overhead object, you should slow down and seek an alternate route, if possible.
16 . Move over laws require:
All drivers to move into the left lane if a flatbed trailer is in the right lane.
If an emergency vehicle is stopped on the side of the road and using its flashing lights, a state's move over law will require approaching drivers to merge into a lane that is not next to the stopped vehicle. If it is not possible to move over safely, drivers must slow down and proceed with caution.
17 . Air tank drains:
Must remain open while driving.
In an air brake system, the air tanks are equipped with drains that allow water and compressor oil to be removed from the system. If allowed to build up, water and compressor oil can damage an air brake system.
18 . How many daily hours of sleep does an adult need to maintain alertness?
Being properly rested is essential to the safe operation of a CMV. To maintain alertness, most people need eight to nine hours of sleep per night.
19 . You should always be able to stop within:
One minute of hitting the brakes.
It is essential that your vehicle will be able to stop within the area of the road that you are able to see. This means that you must slow down whenever conditions reduce visibility.
20 . When driving, you should stop and take a break ____ to avoid becoming too tired.
Every six hours
