Class A Driving Test | Louisiana 2025 #2 Page 4 of 7
Train for FREE online with our Louisiana 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 LA CDL class A 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 A requirements may vary from state to state.
22 . Why are multi-speed axles and auxiliary transmissions used?
On many vehicles, multi-speed rear axles and auxiliary transmissions are used to provide extra gears.
23 . If driving through flowing water or a large puddle, you should:
It is best to avoid driving through large puddles or moving water. If there is no way to avoid driving through water, you should slow down, shift into a low gear, and gently apply the brakes. Pressing linings against the brake drums or discs will keep water, mud, silt, and sand from getting inside the brake mechanisms.
24 . The two indicators that determine when you should upshift are:
There are two indicators that determine when you need to shift into a higher gear. One indicator is the engine speed (rpm). You should read your vehicle's manual to learn its rpm range and shift up when you reach the top of that range. The other indicator is road speed (mph). You should learn which speeds each gear can accommodate, then keep an eye on the speedometer and shift up as needed.
25 . If a speed limit is posted, the posted speed:
A maximum posted speed limit is the fastest a vehicle may travel under ideal circumstances. A driver should decrease their driving speed as conditions require. A driver should never exceed the legal speed limit.
26 . If a worker is present in a work zone, you should:
When driving through a work zone, follow the posted speed limits. If workers are present, you should slow to a speed that is even lower than the posted limit.
27 . What happens if you don’t pass the air brakes endorsement test?
If you do not take or pass the air brakes test, you will be restricted to operating vehicles without air brakes.
28 . Rims with welding repairs:
Wheels or rims that have had welding repairs should never be used.
See the exact questions that will be on the 2025 Louisiana DMV exam.
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