FREE Mississippi CDL Practice Test 2024 - DMV Practice Test
This practice exam's 50 multiple-choice questions are based on the Mississippi Professional Driver's Manual and are intended to help you prepare for the questions you'll see on the real CDL written exam. Pay particular attention to the question explanations as you answer questions on everything from safe backing to drunk driving regulations, since they may help you answer subsequent questions correctly regarding these subjects.
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1 . When driving down a steep grade, your brakes may fade. What happens if brakes fade?
They work differently from front to back.
If you use your brakes too much when traveling on a steep downgrade, they may overheat and become less effective. To avoid causing your brakes to overheat on a steep hill, you should rely on engine braking.
2 . Alcohol evaporators are:
Some air brake systems have alcohol evaporators, which introduce alcohol into the braking system to help prevent the formation of ice.
3 . When driving down a steep grade:
The truck should be put in neutral as a way to slow down your vehicle.
When driving down a steep grade, you should rely primarily on the braking effect of the engine to slow down. To prevent overheating, use your brakes only as a supplement to this slowing technique.
4 . A cargo van carrying a light load is usually:
Less stable than when carrying a heavier load.
The added weight of a heavy load will make a vehicle sit lower than usual. A vehicle will often be taller when carrying a light load than when carrying a heavy load. If your vehicle fits under an overpass while carrying a full load, it is not guaranteed that it will fit under the same overpass if it is empty.
5 . When checking the engine compartment:
The gearshift should be in first gear.
Before inspecting the engine compartment, make sure that the parking brakes are on and/or the wheels are chocked. Check the engine compartment before entering the cab and starting the engine.
6 . Pressing and releasing the brake pedal unnecessarily can:
Create a loud noise.
