FREE Double Triple Test Online | Maryland 2024 Page 2 of 3
Train for FREE with our Maryland 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 MD CDL double triple license in 2021, 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.
20
16
20
8 . The parking brake in a newer vehicle is applied by:
In newer vehicles with air brakes, the parking brake is controlled by a yellow, diamond-shaped knob. The driver should pull the knob outward to apply the parking brakes and push the knob inward to release them.
9 . When slowing down, you should ____ to warn other drivers
Before slowing down, it can be a good idea to lightly tap your brakes. This will cause your brake lights to flash, providing a warning to motorists behind you.
10 . An Anti-Lock Braking System (ABS):
Beginning between 1997 and 1999, most commercial vehicles, trailers, and dollies are required to be equipped with ABS.
11 . 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.
12 . Air tank drains:
Must remain open during driving.
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.
13 . Most drivers are the least alert:
After work.
Fatigue and lack of alertness are major hazards when driving at night. Most people are the least alert at night, especially after midnight.
14 . While driving, spring brakes are generally held in place by:
Sturdy ties.
