Knowledge Test Class B #1
Class B Driving Test | Idaho 2025 #1 Page 5 of 7
Train for FREE online with our Idaho 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 ID 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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29 . Air tank drains should:
In an air brake system, air tank drains are used to remove water and compressor oil from the air tanks. When operating a drain, be sure to drain the tank completely.
30 . For a basic vehicle control skills test, you are expected to be able to:
Maneuvers that may be included in the basic vehicle control skills test include straight line backing, offset back/right parking, offset back/left parking, driver side parallel parking, conventional parallel parking, and alley docking.
31 . As part of the vehicle inspection test, you will be asked to:
During the vehicle inspection test, you will be required to do a complete inspection of your vehicle. During this inspection, you must explain to the examiner what you are inspecting and why you are inspecting those items.
32 . A low air pressure warning signal should activate:
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.
33 . When inspecting your tires, you do not want to find:
There should be at least 4/32 of an inch of tread depth in every major groove on front tires and 2/32 of an inch on other tires. Valve stems should not be cut or cracked. Tire sizes should not be mismatched.
34 . What does the air compressor governor do?
In an air brake system, the air compressor governor controls when the air compressor pumps air into the storage tanks. It stops pumping if the pressure in the tanks becomes too high, and begins pumping if the pressure becomes too low.
35 . Texting while operating a CMV is:
Texting and driving is dangerous for everyone on the road. It is illegal to text while operating a CMV.
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2025 Idaho | Frequently Asked Questions
In Idaho, to acquire a Commercial Driver's License (CDL) Passenger endorsement, you must already possess a valid CDL. You will need to pass the Passenger Transport Test at your local DMV, which includes both a written knowledge test and a skills test. Additionally, you need to pay the required fees and meet all medical and age requirements.
To obtain a CDL Passenger license in Idaho, you must be at least 21 years old and have a valid regular CDL. You also need to pass a written knowledge test and a skills test, which includes pre-trip vehicle inspection, basic vehicle control, and on-road driving. Additionally, you must meet medical requirements and pay the necessary fees.
While Idaho doesn't require specific training to secure a CDL Passenger endorsement, it's highly recommended. Training can provide the necessary skills and knowledge to pass the written and skills tests. Experience isn't required, but you must already have a valid CDL. Remember, you must be at least 21 years old and meet all medical requirements.
Yes, to obtain a CDL Passenger endorsement in Idaho, you must pass a written knowledge test specifically for passenger vehicles. This test covers topics like vehicle inspection, loading and trip start, on the road, after-trip vehicle inspection, prohibited practices, and use of brake-door interlocks. It's an additional requirement to the standard CDL tests.
For the Idaho CDL Passenger endorsement skills test, you'll need to demonstrate pre-trip vehicle inspection, safe loading/unloading of passengers, proper use of emergency exits, and safe operation of the vehicle. You'll also be evaluated on your ability to handle railroad-highway crossings and stop/start procedures. It may also include a driving test on public roads.
No, you cannot legally transport passengers in Idaho without a valid CDL Passenger endorsement. This endorsement is required for drivers who wish to operate a vehicle designed to carry 16 or more passengers, including the driver. Driving without the correct endorsement can result in fines, license suspension, or even jail time.
Yes, you can add the CDL Passenger endorsement to your existing CDL. You don't need a new application for the entire license. However, you will have to pass the passenger vehicle written test and pay the required fees. The endorsement is added to your existing CDL upon successful completion of the test.
Yes, there are certain restrictions for drivers with a CDL Passenger endorsement. For example, they must not exceed the vehicle's designated passenger capacity. They also need to ensure the safety of all passengers, which includes following specific rules about loading/unloading passengers, use of safety equipment, and emergency exit procedures. Violating these rules can lead to penalties.
Yes, to acquire the CDL Passenger endorsement in Idaho, you must be at least 21 years old. This age requirement is in place to ensure that drivers have sufficient experience and maturity to handle the responsibilities associated with transporting passengers. This rule applies nationwide, not just in Idaho.
With a CDL Passenger endorsement, you'll be eligible to operate vehicles such as school buses, city buses, tour buses, and commercial shuttle buses. Essentially, this endorsement allows you to operate any vehicle designed to transport 16 or more passengers, including the driver. However, for school buses, an additional School Bus endorsement is required.
