10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
These 10 free MS-CDL questions are organized by exam domain, so you can see how each part of the Mississippi CDL Permit Test blueprint is tested. Reveal the answer and explanation under each question.
A company assigns a driver a straight truck with a GVWR of 28,000 pounds towing a utility trailer with a GVWR of 9,000 pounds. No passenger or hazardous-material trigger applies. What CDL class is required?
Correct answer: B - Class B, because the trailer is rated at 10,000 pounds or less
A 60-foot tractor-trailer is cruising at 55 mph on dry pavement. The driver times a six-second gap to the vehicle ahead. Which assessment is correct?
Correct answer: D - The gap is one second short; increase it to at least seven seconds
A truck becomes disabled on a straight, two-lane undivided highway. Traffic approaches from both directions, and the truck is visible for more than 500 feet. Which warning-device layout is correct?
Correct answer: A - One device within 10 feet of the truck, plus one 100 feet ahead and one 100 feet behind
In heavy rain, the steering suddenly feels light and the vehicle begins gliding instead of responding normally. There is no obstacle immediately ahead. What is the best initial response?
Correct answer: C - Ease off the accelerator, avoid braking, and let the tires regain contact
On a long downgrade, a driver has selected a low gear before descending. Which service-brake technique best limits brake fade?
Correct answer: B - Brake firmly to about 5 mph below the safe speed, release, and repeat
Near 2:30 a.m., a driver who slept five hours notices repeated yawning and lane-position drift. A delivery window closes in 45 minutes. Which response addresses the hazard rather than masking it?
Correct answer: A - Stop at a safe place and sleep; treat a 15-20 minute nap as temporary relief only
An 8-foot machine weighing 8,000 pounds will be carried on an open flatbed. Ignoring any commodity-specific rule, which securement plan meets both general tiedown requirements?
Correct answer: D - Two tiedowns totaling at least 4,000 pounds of working-load limit
A passenger bus reaches a drawbridge controlled by a green traffic signal. The span appears fully closed and aligned. What is the proper approach?
Correct answer: C - Slow, confirm the draw is closed, and proceed cautiously
During the applied air-leakage test on a tractor-semitrailer, system pressure drops 3.5 psi in one minute while the driver holds a full service-brake application. No audible leak or other defect is found. How should this result be interpreted?
Correct answer: C - It passes; the applied-loss limit for a combination is 4 psi per minute
On a dual-air vehicle, the low-air warning remains silent until pressure falls to 49 psi. The spring brakes have not begun to apply. What does this finding indicate?
Correct answer: A - The warning is defective; it should activate before pressure drops below 55 psi
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