Combination Vehicles Practice Test | New Jersey 2024 #2 Page 3 of 3
Train for FREE online with our New Jersey CDL combination vehicle test. 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 NJ combination 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 for issuing a combination license may vary from state to state.
15 . What is a bobtail?
Tractors without semi-trailers are referred to as bobtail tractors. Operating a bobtail tractor requires drivers to exercise caution.
16 . If colors are being used to distinguish glad hands, which color is used for emergency lines?
When trailer air lines are color-coded, the service lines are generally blue and the emergency lines are generally red.
17 . When backing a trailer, how should you turn the steering wheel?
When backing with a trailer, turn the top of the steering wheel in the direction opposite of where you want to go. Once the trailer begins turning, you should then switch the direction of the steering wheel to follow the trailer.
18 . Avoid needing to make sudden lane changes by:
Making a sudden lane change can be dangerous when driving a combination vehicle. Avoid the need to make a sudden lane change by looking down the road for upcoming obstacles that will require you to change lanes.
19 . If unsure if a trailer is equipped with ABS, you can:
Trailers and converter dollies built on or after March 1, 1998 are required to have Anti-Lock Braking Systems (ABS). This will be indicated by the presence of a yellow malfunction lamp. You can determine if older trailers have ABS by checking under the trailers for ECU and wheel speed sensor wires coming from the back of the brakes.
20 . When backing up to couple a trailer, you should position the tractor:
When backing up to couple a trailer, you should position the tractor directly in front of the trailer. Trying to couple while backing at an angle could cause the trailer to move and the landing gear to break.
See the exact questions that will be on the 2024 New Jersey DMV exam.
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