Wisconsin (WI) 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 will be denied or lose your hazardous materials endorsement if you are considered to pose a security threat as determined by the Transportation Security Administration.

   What penalty may a court impose for holding more than one license?

   1. AA fine of up to $1,000 and no jail time
   2. BA disqualification of exactly 30 days
   3. CA fine of up to $10,000 and no jail time
   4. DA fine of up to $5,000 or a jail term

   What is the penalty for a second alcohol or felony offense of the kind that costs a year for the first?

   1. ALoss of the CDL for ten years
   2. BLoss of the CDL for three years
   3. CLoss of the CDL for five years
   4. DLoss of the CDL for life
   This chapter has 26 more questions. Practice them in the app and see your pass chance.
2. 2

   Driving Safely

   Everyone

   Looking 12 to 15 seconds ahead equals about one block at city speeds and about a quarter mile at highway speeds.

   Why is a stopped bus a hazard to you?

   1. AIt blocks your view of the traffic signal
   2. BIt may pull out without signaling first
   3. CPassengers may cross in front of or behind it
   4. DIts mirrors extend into the passing lane

   Why should you never change gears while your vehicle is moving across railroad tracks?

   1. AA missed shift could leave you stalled or stuck on the tracks
   2. BShifting can damage the transmission on the rough rail surface
   3. CIt is illegal to change speed anywhere inside a crossing zone
   4. DThe extra engine noise could drown out an approaching train horn
   This chapter has 290 more questions. Practice them in the app and see your pass chance.
3. 3

   Transporting Cargo Safely

   Everyone

   Suspension systems have a manufacturer's weight capacity rating.

   Which of these is named as proper tie-down equipment?

   1. ABungee cords and elastic cargo netting
   2. BWooden wedges and rubber floor mats
   3. CRopes, straps, chains, and tensioners
   4. DShrink wrap and heavy packing tape

   Which cargo responsibility remains yours even when someone else loads the vehicle?

   1. ADetermining the freight class for billing
   2. BRecognizing overloads and poorly balanced weight
   3. CChoosing the route the shipment will take
   4. DSelecting the packaging the freight travels in
   This chapter has 26 more questions. Practice them in the app and see your pass chance.
4. 4

   Transporting Passengers

   P endorsement (bus)

   The rules require shippers to mark containers of hazardous material with the material's name, identification number, and hazard label.

   Which safety-related parts does the manual say riders sometimes damage?

   1. ABrake pedals, gauges, and the fare box
   2. BAxle seals, hubs, and suspension airbags
   3. CWiper blades, mirrors, and marker lamps
   4. DHandholds, seats, emergency exits, and windows

   Your coach is low on fuel mid-trip and a truck stop is ahead. What is the general rule about refueling while your passengers remain in their seats?

   1. AIt is required so that riders can be counted easily
   2. BIt is fine whenever the stop lasts under ten minutes
   3. CAvoid it unless doing so is absolutely necessary
   4. DIt is allowed if at least one exit door stays open
   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

   If ABS fails, the vehicle still has normal brakes; only the antilock function is lost.

   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"

   What are the two halves of a dual air brake system called?

   1. AThe service system and the reserve system
   2. BThe front circuit and the emergency circuit
   3. CThe supply system and the application system
   4. DThe primary system and the secondary system
   This chapter has 147 more questions. Practice them in the app and see your pass chance.
6. 6

   Combination Vehicles

   Class A

   Landing gear must be fully raised before driving; crank handle secured; never drive with gear partially raised.

   After the fifth wheel jaws lock during coupling, how do you confirm the connection with a tug test?

   1. APull forward gently in low gear with the trailer brakes locked
   2. BBack up firmly once more to reseat the kingpin
   3. CShake the release handle while a helper watches the jaws
   4. DRock the trailer sideways using the steering axle

   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
   This chapter has 118 more questions. Practice them in the app and see your pass chance.
7. 7

   Doubles and Triples

   T endorsement

   Doubles and triples have more tires, lights, and coupling points to inspect than singles.

   Before backing the converter dolly under the second trailer, the trailer's nose height should be:

   1. AExactly level with the top of the dolly fifth wheel
   2. BResting on its landing gear pads at ground level
   3. CWell above the fifth wheel so it drops on hard
   4. DSlightly lower than the center of the dolly fifth wheel

   What must you verify about the light cords when inspecting a set of doubles or triples?

   1. AThey are disconnected at the rear of the last trailer
   2. BThey are routed alongside the safety chains
   3. CThey are firmly seated in the sockets on the trailers
   4. DThey are long enough to reach across two trailers
   This chapter has 98 more questions. Practice them in the app and see your pass chance.
8. 8

   Tank Vehicles

   N endorsement

   Tank vehicles need increased following distance because surge extends stopping distance.

   Compared with most other kinds of cargo, why does a load of liquid in a tank make a truck easier to roll over?

   1. ALiquid cargo gradually lowers the air pressure in the tires
   2. BMuch of the load's weight is carried high above the roadway
   3. CLiquid loads are always heavier than dry freight loads
   4. DTank trailers ride on narrower axles than flatbed trailers

   What is the best overall driving style for keeping liquid surge under control in a loaded tank vehicle?

   1. AMake quick steering corrections to break up the liquid wave
   2. BDownshift rapidly so the engine can absorb the surge forces
   3. CBrake hard and early so the liquid settles before every stop
   4. DAccelerate, brake, and steer as smoothly and gradually as you can
   This chapter has 62 more questions. Practice them in the app and see your pass chance.
9. 9

   Hazardous Materials

   H endorsement

   The front placard may be on the front of the tractor or the front of the trailer.

   How do you make hazardous materials shipping papers stand out from the rest?

   1. AMark the reverse side with a hazard symbol
   2. BFold them lengthwise inside the others
   3. CTab them or keep them on top of the stack
   4. DStore them separately in the sleeper

   On a portable tank holding less than 1,000 gallons, how tall must the shipping name letters be?

   1. AAt least one inch
   2. BAt least three inches
   3. CAt least two inches
   4. DThere is no minimum for tanks that small
   This chapter has 234 more questions. Practice them in the app and see your pass chance.
10. 10

    School Buses

    S endorsement

    Turn on the right turn signal indicator about 100 to 300 feet, or approximately 3 to 5 seconds, before pulling over.

    How far can the blind spot behind a school bus extend, depending on the bus's size?

    1. AUp to about 100 feet
    2. BUp to about 400 feet
    3. CUp to about 200 feet
    4. DUp to about 800 feet

    What should be switched on while loading students in the dark?

    1. AThe stepwell heater lamp
    2. BThe dome light
    3. CThe high beam headlights
    4. DThe rear cargo lamp
    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)

    With the parking brake engaged, remove your foot from the service brake and inspect that the parking brake will hold the vehicle by gently pulling forward.

    What color must the reflectors mounted on the rear of a trailer be during your inspection?

    1. ABlue reflectors
    2. BRed reflectors
    3. CWhite reflectors
    4. DAmber reflectors

    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
    This chapter has 200 more questions. Practice them in the app and see your pass chance.

The official Wisconsin CDL manual