Knowledge Test Class B #2
Class B Driving Test | South Dakota 2025 #2 Page 7 of 7
Train for FREE online with our South Dakota class B license 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 SD CDL class B permit in 2025, 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 CDL class B requirements may vary from state to state.
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43 . Which of the following is not a reason to cover cargo?
You should cover your cargo to protect people from the cargo if it spills, as well as to protect the cargo from the weather.
44 . A low air pressure warning signal should activate:
When tank pressure falls below 5 psi.
In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 60 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.
45 . You must have an air brake endorsement:
You must take an air brakes knowledge test to become licensed to operate a vehicle that is equipped with air brakes, including an air over hydraulic braking system.
46 . Rust around wheel nuts may mean:
Rust around wheel nuts can indicate that the nuts are loose. If you find rust near the wheel nuts, check their tightness before beginning to drive.
47 . When approaching a vehicle for a pre-trip inspection, a driver should look under the vehicle:
To see if the vehicle is on a decline.
When approaching your vehicle to conduct an inspection, you should look underneath it to make sure there are no fresh oil, coolant, grease, or fuel leaks on the ground. Leaks can indicate unsafe defects on a vehicle.
48 . Bridges usually:
Bridges tend to freeze before other parts of the road surface. You should be especially careful on bridges when temperatures are near the freezing point.
49 . When completing an offset back/left parking maneuver, a driver should:
If you are asked to complete an offset back/left parking maneuver, you should first pull straight forward, then back up to the left. Your vehicle must be parked completely within the boundaries of the parking space.
50 . If the spring brakes are activated, you should never:
Open the door to the cab.
Never apply the brake pedal if your spring breaks are activated. Brakes can be damaged if they are subject to both springs and air pressure.
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2025 South Dakota | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in South Dakota, you must already possess a Commercial Driver's License (CDL). Then, you need to pass the Doubles/Triples Endorsement knowledge test. Study the relevant sections in the South Dakota CDL Manual beforehand. After passing the test, you'll receive your endorsement. Remember, driving experience with these types of vehicles is recommended.
To obtain a CDL Doubles/Triples license, you must already have a Commercial Driver's License (CDL). Then, pass the Doubles/Triples endorsement knowledge test. This test covers information found in the South Dakota CDL manual. It is also beneficial to have practical experience driving these types of vehicles, although not required. After passing the test, you'll receive your endorsement.
While specialized experience or training isn't a legal requirement for a CDL Doubles/Triples endorsement in South Dakota, it's highly recommended. Knowledge of handling these vehicles can be beneficial for the endorsement knowledge test. Studying the South Dakota CDL Manual, particularly sections on Doubles/Triples, is essential. Practical experience can also increase your chances of passing the driving test.
Yes, to obtain a CDL Doubles/Triples endorsement in South Dakota, you must pass an additional knowledge test specifically for Doubles/Triples. This test covers topics like coupling and uncoupling, inspecting doubles and triples, and handling these types of vehicles. The information for this test is found in the South Dakota CDL Manual.
The CDL Doubles/Triples endorsement test in South Dakota is a knowledge test, not a skills test. Therefore, you won't need to showcase any specific maneuvers. However, the test will cover topics such as coupling and uncoupling, inspecting doubles and triples, and the procedures for handling these types of vehicles. It's essential to understand these aspects thoroughly.
No, it is not permissible. In South Dakota, you must have a valid Commercial Driver's License (CDL) with a Doubles/Triples endorsement to legally operate double or triple trailers. Operating these vehicles without the proper endorsement can result in serious penalties, including fines and potential suspension of your CDL.
To add the CDL Doubles/Triples endorsement to your current license in South Dakota, you will need to initiate a new application. You cannot simply append the endorsement to your existing license. You will have to meet the requirements, including passing the knowledge test and paying the necessary fees, to obtain the endorsement.
Yes, there are some limitations for drivers holding a CDL Doubles/Triples endorsement. These drivers are only allowed to operate double and triple trailers. They cannot operate other types of commercial vehicles unless they have the appropriate endorsements. Also, they must follow all federal and state regulations regarding maximum weight, length, and safety requirements for double/triple trailers.
In South Dakota, the maximum legal weight for a vehicle (including double/triple trailers) is 80,000 pounds. The maximum length for a double trailer is 81.5 feet and for triple trailers, it's 103 feet. However, these limits can be exceeded with special permits, which are issued based on factors like route capacity and vehicle configuration.
Yes, there are specific safety guidelines. Drivers with a CDL Doubles/Triples endorsement must perform regular inspections to check brakes, tires, lights, and other safety equipment. They must also follow special procedures for coupling and uncoupling trailers, and they must maintain safe following distances to allow for the increased stopping time needed for these larger vehicles.
