Knowledge Test Class A #1
Class A Driving Test | Utah 2026 #1 Page 7 of 7
Train for FREE online with our Utah class A 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 UT CDL class A 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 A requirements may vary from state to state.
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43 . Cargo on flatbed trailers should be:
Pushed to one side.
On flatbed trailers or trailers without sides, cargo must be tied down to prevent it from shifting or falling off in transit.
44 . At what psi is the safety valve set to open?
500 psi
In an air brake system, the first tank that receives compressed air has a safety valve that releases air if the pressure gets too high. It is usually set to open at 150 psi. If the valve must open, there is a fault in the system that should be repaired by a mechanic.
45 . When stopping a manual transmission vehicle, what should you do when the engine is close to idle?
Shut off the vehicle.
When stopping a vehicle with a manual transmission, you should push in the clutch when the engine is close to idle.
46 . 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.
47 . A broken exhaust system poses no threat to the driver.
A broken exhaust system is extremely dangerous because it may introduce toxic fumes into the cab or sleeper berth.
48 . Drivers may use ____ red reflective warning triangles when their vehicle is stopped on the side of the road.
Seven
If a vehicle carries red reflective triangles, the driver should place three of them as warning devices when the vehicle is parked on the road.
49 . Pressing and releasing the brake pedal unnecessarily can:
Create a loud noise.
On a vehicle with air brakes, pressing and releasing the brake pedal unnecessarily may let air out of the braking system faster than the compressor can replace it. This may cause the system's air pressure to become too low and the brakes to stop working.
50 . Texting while driving is worrisome:
Because it is less efficient than a phone call.
