Mississippi (MS) CDL manual 2026

Practice the manual, chapter by chapter

State manuals are built on the same national model, chapter for chapter. One thing to know from each chapter, then real questions from it to answer — tap an option to check yourself.

1. 1

   Introduction

   Everyone

   You must notify your employer within two business days if your license is suspended, revoked, or canceled, or if you are disqualified from driving.

   What is the minimum disqualification for a first violation of an out-of-service order?

   1. AOne year
   2. B60 days
   3. C90 days
   4. D30 days

   What is the disqualification for a first railroad-highway grade crossing violation?

   1. AAt least 90 days
   2. BAt least 30 days
   3. CAt least 60 days
   4. DAt least 120 days
   This chapter has 26 more questions. Practice them in the app and see your pass chance.
2. 2

   Driving Safely

   Everyone

   Consider whether you are taking sedating medications such as antidepressants, cold tablets, or antihistamines.

   When does the manual tell you to be especially alert for drunk and sleepy drivers?

   1. ALate at night
   2. BOn weekend afternoons
   3. CIn the hour after sunset
   4. DDuring the morning commute

   You cannot avoid driving through a stretch of dense fog. Which headlight setting should you use?

   1. ALow beams, so light is not reflected back into your eyes
   2. BHigh beams, so the light reaches farther into the fog
   3. CParking lights, to reduce the glare for other drivers
   4. DFour-way flashers only, with the headlights switched off
   This chapter has 290 more questions. Practice them in the app and see your pass chance.
3. 3

   Transporting Cargo Safely

   Everyone

   Gross combination weight means the total weight of a powered unit plus trailer(s) plus the cargo.

   What is the main purpose of the diamond-shaped placards displayed on some trucks and trailers?

   1. ATo mark loads that are overweight or oversized for the route
   2. BTo show that the cargo has cleared a customs inspection
   3. CTo warn others about the hazard class of the cargo on board
   4. DTo identify the motor carrier's operating authority number

   On a flatbed, what additional risk comes with a high center of gravity?

   1. AThe deck will flex and crack over time
   2. BThe trailer will ride nose-high when loaded
   3. CThe load may shift to the side or fall off
   4. DThe tie-downs will loosen as the trip continues
   This chapter has 26 more questions. Practice them in the app and see your pass chance.
4. 4

   Transporting Passengers

   P endorsement (bus)

   Transit drivers should verify that passenger signaling devices and brake-door interlocks are working when inspecting the bus after a shift.

   Which sections of the manual does the knowledge test for the passenger endorsement cover?

   1. ASections 3 and 4
   2. BSections 2 and 4
   3. CSection 4 alone
   4. DSections 1 and 4

   Crash records show that buses are involved in collisions at one location type far more than others. Where should you be especially defensive?

   1. AAt intersections, even when you have the right of way
   2. BOn one-way streets that have no cross traffic
   3. COn long rural straightaways with light traffic
   4. DIn depot parking areas while out of service
   This chapter has 98 more questions. Practice them in the app and see your pass chance.
5. 5

   Air Brakes

   Any vehicle with air brakes

   Use the parking brakes whenever you park.

   Where in the air brake system is the safety relief valve installed?

   1. AIn the tank that feeds the spring brake circuit
   2. BIn the line between the pedal and the front chambers
   3. CIn the first tank the compressor pumps air to
   4. DIn the governor housing on the compressor itself

   How is the cab control for a front brake limiting valve normally marked?

   1. A"On" and "off"
   2. B"Normal" and "slippery"
   3. C"Loaded" and "empty"
   4. D"City" and "highway"
   This chapter has 148 more questions. Practice them in the app and see your pass chance.
6. 6

   Combination Vehicles

   Class A

   Before coupling, check that the fifth wheel is tilted down toward the rear of the tractor, with the jaws open and the safety unlocking handle in the automatic lock position.

   Whenever you back with a trailer, how should you try to position the vehicle first?

   1. ASo the tractor is jackknifed about 30 degrees
   2. BSo the trailer tandems are slid fully forward
   3. CSo you can back in a straight line
   4. DSo the trailer is angled toward the passenger side

   The trailer wheels lock and the trailer begins to swing around. What is this kind of jackknife called?

   1. AA rearward amplification event
   2. BAn off-tracking skid
   3. CA tractor jackknife
   4. DA trailer jackknife
   This chapter has 118 more questions. Practice them in the app and see your pass chance.
7. 7

   Doubles and Triples

   T endorsement

   Release the dolly by supporting it, removing chains, and opening the pintle hook in order.

   Your tractor has a sliding fifth wheel. What must be true of its locking pins during inspection?

   1. AThe pins greased and free to move
   2. BAll pins withdrawn so the slide can float
   3. CAt least one pin engaged on each rail
   4. DAll pins present and locked in place

   A converter dolly has no spring brakes. How do you release its brakes so it can be moved into position?

   1. AOpen the petcock on the dolly air tank
   2. BPull the release arm on the dolly's fifth wheel
   3. CPush in the trailer air supply knob on the tractor dash
   4. DCrank the dolly landing gear to its fully raised stop
   This chapter has 98 more questions. Practice them in the app and see your pass chance.
8. 8

   Tank Vehicles

   N endorsement

   Check the emergency equipment required for your vehicle; find out what equipment you are required to carry and make sure you have it and it works.

   What does the manual say is required of anyone who drives a liquid tanker?

   1. AHolding at least two years of combination experience
   2. BCompleting a surge simulator course each year
   3. CBeing very familiar with how the vehicle handles
   4. DCarrying the product's safety data sheet in the cab

   You brake to a stop at a red light in a loaded tanker. What can the forward-moving wave of liquid do to your vehicle?

   1. AForce extra fuel into the engine cylinders
   2. BPush the truck forward into the intersection
   3. CCause the trailer brakes to lock automatically
   4. DLift the drive axles off the pavement
   This chapter has 62 more questions. Practice them in the app and see your pass chance.
9. 9

   Hazardous Materials

   H endorsement

   Do not park on private property unless the owner is aware of the danger.

   What does the manual require for materials subject to spontaneous combustion or heating?

   1. AVehicles with sufficient ventilation
   2. BTransport only during daylight hours
   3. CA dedicated fire watch in the cargo area
   4. DRefrigerated transport at all times

   Within what period must carriers make detailed written reports of a hazardous materials incident?

   1. AWithin 90 days
   2. BWithin 5 days
   3. CWithin 30 days
   4. DWithin 10 days
   This chapter has 234 more questions. Practice them in the app and see your pass chance.
10. 10

    School Buses

    S endorsement

    Make a final check to see that all traffic has stopped before completely opening the door and signaling students to approach.

    Where are the outside convex mirrors mounted relative to the flat mirrors?

    1. AAbove them
    2. BOn the opposite front corner
    3. CBelow them
    4. DInboard of them, nearer the windshield

    What does a sign mounted below the cross-buck tell you?

    1. AThe speed limit for crossing the tracks
    2. BThe number of tracks at the crossing
    3. CThe name of the railroad operating the line
    4. DThe distance to the next crossing
    This chapter has 98 more questions. Practice them in the app and see your pass chance.
11. 11

    Pre-Trip Vehicle Inspection

    Everyone (skills test)

    In the seven-step method, the engine compartment check follows the initial vehicle overview.

    What must be true of the light lenses on the front of the vehicle?

    1. ATinted to reduce glare for oncoming drivers
    2. BSealed with silicone around every edge
    3. CProper color, clean, not broken and not missing
    4. DReplaced whenever the bulb is changed

    When you check your seat belt during the in-cab inspection, what are you looking for?

    1. AThat it is long enough to wrap around the seat frame twice
    2. BThat the belt retracts fast enough to snap back on its own
    3. CThat the shoulder strap can be tucked behind your back easily
    4. DThat it mounts securely, latches properly, and is not frayed
    This chapter has 200 more questions. Practice them in the app and see your pass chance.

The official Mississippi CDL manual