Knowledge Test Class B #1
Class B Driving Test | Texas 2025 #1 Page 7 of 7
Train for FREE online with our Texas 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 TX 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 . Brake fading is caused when:
Brakes are wet.
Using the brakes excessively will cause them to overheat, making them less effective. This is referred to as "fading."
44 . Improperly loaded cargo can:
Aid in safety.
Cargo must be properly loaded and secured to prevent it from falling or shifting dangerously. During a quick stop, improperly loaded cargo could injure or even kill the driver.
45 . What can happen if the air pressure gets too low in an air brake system?
The brakes will be very sensitive.
Pressing and releasing the brake pedal unnecessarily can let air out faster than the compressor can replace it, reducing the available air pressure. If the air pressure in an air brake system gets too low, the brakes will no longer work.
46 . How many air storage tanks are used in an air brake system?
The number varies.
Air storage tanks are used to hold compressed air. The number and size of air tanks in an air brake system varies among vehicles.
47 . Which of the following is not a sign of fatigue?
Drifting from your lane
Driving while fatigued is dangerous. Warning signs of fatigue include difficulty focusing; repeated yawning or rubbing of the eyes; daydreaming or wandering thoughts; and drifting out of your lane.
48 . If driving a school bus, your four-way flashers should:
Only be used near railroad tracks if a train is approaching.
When driving a school bus, you must activate your four-way flashers while approaching and crossing a railroad crossing. Deactivate the flashers once your entire vehicle has cleared the tracks.
49 . When taking the basic control skills test, drivers are:
Allowed to leave the vehicle, but only if the vehicle is placed in neutral and the parking brake is set.
During the basic vehicle control skills test, you must place the vehicle in neutral and set the parking brake before exiting the vehicle to check its position. You may check the position of the vehicle no more than twice, except during the straight line backing exercise, where you may look no more than once.
50 . When conducting a vehicle inspection, you will need to identify all of the following, except:
The water compressor belt.
