Combination #2
Combination Vehicles Practice Test | New Hampshire 2026 #2 Page 2 of 3
Train for FREE online with our New Hampshire 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 NH combination 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 for issuing a combination license may vary from state to state.
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8 . When coupling:
Incorrect coupling and uncoupling of combination vehicles can have extremely dangerous consequences.
9 . If you need to back your trailer but cannot back up in a straight path, you should:
Always turn to your right.
If you need to back your trailer but cannot back up in a straight path, you should back on a curved path toward the driver's side of the vehicle. This will permit you the best possible visibility while backing.
10 . The best way to recognize that your trailer has started to skid is by:
The easiest way to become aware that your trailer has begun to jackknife is to observe it in your mirrors. Checking your trailer in your mirrors will also allow you to spot any skidding at the earliest possible moment.
11 . ____ are the cause of more than half of all accident-related truck driver deaths.
Pedestrians
More than half of all accident-related truck driver deaths are a result of truck rollovers. To help prevent a rollover, be sure to load cargo low to the ground and centered on your rig. Take corners slowly and carefully.
12 . The service air line is often controlled by the foot brake and is attached to the ____ valves.
The service air line carries air and is controlled by either the foot brake or trailer hand brake. The service air line is attached to relay valves, which allow the trailer brakes to be applied quickly.
13 . If a parked trailer does not have spring brakes, you should keep the trailer from moving by:
If a parked trailer does not have spring brakes, wheel chocks should be used to prevent it from moving.
14 . After finishing a pre-trip inspection, you should:
Leave the rear shut-off valves open.
Before a trip, you should ensure that air reaches all air brakes on all trailers by opening up the rear emergency line and service line shut-off valves to listen for escaping air. Close both shut-off valves before beginning to drive.
2026 New Hampshire | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in New Hampshire, you must already possess a valid CDL. You'll need to pass a written knowledge test specific to doubles/triples operation. Studying the New Hampshire CDL Handbook's section on doubles/triples is recommended. Once you've passed the test, the endorsement will be added to your CDL.
To obtain a CDL Doubles/Triples license, you firstly need to have a valid commercial driver's license (CDL). Next, you will need to pass a knowledge test specific to operating doubles/triples. This test covers topics such as coupling and uncoupling, inspecting doubles and triples, and the proper procedures for pulling double/triple trailers.
While no specific experience is mandated by law for a CDL Doubles/Triples endorsement, it's crucial you're proficient in operating a commercial vehicle. The endorsement requires passing a written knowledge test on handling such vehicles. Training, though not compulsory, can be beneficial for understanding vehicle handling, coupling/uncoupling, and inspection procedures.
Yes, to get a CDL Doubles/Triples endorsement, you must pass a specific written knowledge test. The test covers areas such as coupling and uncoupling, inspecting doubles and triples, and the correct procedures for pulling double/triple trailers. The endorsement does not require a separate skills test.
Actually, for a CDL Doubles/Triples endorsement, you won't need to demonstrate any specific skills or maneuvers in a road test. The endorsement requires only a written knowledge test. This test focuses on areas like coupling and uncoupling, inspecting doubles and triples, and proper procedures for pulling double/triple trailers.
No, it is not permissible. To legally operate double or triple trailers in New Hampshire, you must have a valid Commercial Driver's License (CDL) with a Doubles/Triples endorsement. Operating such vehicles without the proper endorsement can lead to legal penalties, including fines and potential loss of your CDL.
You can add the CDL Doubles/Triples endorsement to your existing CDL. You'll need to pass the Doubles/Triples knowledge test. Once you pass, the endorsement will be added to your CDL. It's not necessary to initiate a completely new application for a CDL unless your current one is not valid.
Yes, there are limitations for drivers with a CDL Doubles/Triples endorsement. One major constraint is that they can only drive double and triple trailers on highways and interstates. They are generally not allowed to drive these large vehicles in residential areas. Also, specific rules about weight and length of the trailers must be adhered to, as per federal and state regulations.
In New Hampshire, the maximum weight for a vehicle with a double/triple trailer is 80,000 pounds. The maximum length of a trailer is 53 feet. However, the combined length of the truck and double trailers cannot exceed 75 feet. For triples, the total length should not exceed 65 feet. It's important to check federal regulations as well, as they may have additional restrictions.
Yes, drivers with a CDL Doubles/Triples endorsement must follow specific safety guidelines. These include checking all connections regularly, maintaining safe following distances, and taking extra care when turning or changing lanes due to the increased length of the vehicle. Additionally, drivers must be aware of the "crack-the-whip" effect that can happen when driving at high speeds or making sudden lane changes.