Knowledge Test Class B #1
Class B Driving Test | Montana 2026 #1 Page 4 of 7
Train for FREE online with our Montana 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 MT CDL class B permit 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 CDL class B requirements may vary from state to state.
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22 . To warn drivers behind you that you will be slowing down, you should:
To let drivers behind you know that you plan to slow down, lightly tap your brake pedal a few times to flash your brake lights. It is important to communicate your intentions to other drivers.
23 . If the low air pressure warning signal comes on, you should:
If the low air pressure warning signal comes on while you are driving a vehicle with air brakes, you should immediately bring the vehicle to a safe stop while you are still able to control the brakes. Inspect and repair the brakes as soon as possible.
24 . As part of the vehicle inspection test, a CDL applicant may be asked to:
When checking the engine compartment during the vehicle inspection test, you will need to check the engine oil level.
25 . You should always be able to stop within:
A minute of hitting the brakes.
You should always make sure that your vehicle will be able to stop within the area of the road that you are able to see. This means that you must slow down whenever conditions reduce visibility.
26 . Convex mirrors:
Are illegal to be used in most states.
Many large vehicles have curved, convex mirrors. Convex mirrors allow drivers to see a wider area than flat mirrors. However, they also make objects seem smaller and farther away than they really are.
27 . Poisonous fumes can enter the cab due to:
Under-inflated tires.
Defects in an exhaust system are very dangerous because they can cause poisonous fumes to enter the cab or sleeper berth.
28 . Which of the following is acceptable if found during a pre-trip inspection?
Cracks in the tires
