Wyoming (WY) 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.

   A passenger endorsement is required to drive a vehicle designed to transport how many people?

   1. A12 or more passengers, not counting the driver
   2. B15 or more passengers, including the driver
   3. C20 or more passengers, not counting the driver
   4. D16 or more passengers, including the driver

   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
   This chapter has 26 more questions. Practice them in the app and see your pass chance.
2. 2

   Driving Safely

   Everyone

   That space can be very small when a vehicle is heavily loaded; this is often a problem on dirt roads and in unpaved yards.

   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

   Which wheel components does the manual say are dangerous when missing?

   1. AHub caps and trim rings
   2. BBalance weights and stems
   3. CValve caps and dust shields
   4. DClamps, spacers, studs, or lugs
   This chapter has 290 more questions. Practice them in the app and see your pass chance.
3. 3

   Transporting Cargo Safely

   Everyone

   Blocking is used in the front, back, and/or sides of a piece of cargo to keep it from sliding; bracing goes from the upper part of the cargo to the floor and/or walls of the cargo compartment.

   When is a high center of gravity most dangerous?

   1. AOn long straight stretches at highway speed
   2. BDuring hard braking from low speed
   3. CWhile backing into a loading dock
   4. DIn curves, or when swerving to avoid a hazard

   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)

   Roof hatches may be locked partially open for fresh air, but this should not be left as a regular practice.

   A standee line is painted on the floor of buses that allow standing riders. What does this line mark?

   1. AThe point behind which all standing riders must stay
   2. BWhere riders should line up to pay their fares
   3. CThe area reserved for riders with disabilities
   4. DThe rear boundary of the luggage storage area

   On buses designed to allow standing, how is the standee line marked?

   1. AA painted stripe on the ceiling
   2. BA four-inch line on the floor
   3. CA row of studs across the aisle
   4. DA two-inch line on the floor
   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

   Governor cut-in around 100 psi.

   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

   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 147 more questions. Practice them in the app and see your pass chance.
6. 6

   Combination Vehicles

   Class A

   A tug test means gently pulling the tractor forward against the locked trailer brakes to check that the coupling holds.

   Why is a fully loaded tractor-trailer more likely to roll over in a curve than a passenger car?

   1. AIts longer wheelbase makes the steering less responsive
   2. BIts brakes take longer to build application pressure
   3. CIts tires are wider and grip the pavement harder
   4. DIts cargo raises the center of gravity far above the road

   What steering habit best protects a doubles driver from tipping the rear trailer through rearward amplification?

   1. AMaking small, smooth steering corrections
   2. BTurning the wheel quickly to clear hazards early
   3. CCountersteering sharply after every lane change
   4. DHolding the wheel loosely so it can self-center
   This chapter has 118 more questions. Practice them in the app and see your pass chance.
7. 7

   Doubles and Triples

   T endorsement

   Couple the second and third trailers first, then attach the tractor and first trailer.

   You are finishing the coupling of a set of doubles. What is the correct final position of the rear trailer's landing gear?

   1. ARaised completely
   2. BLeft wherever it sat when the dolly went under
   3. CLowered until it just touches the pavement
   4. DLowered enough to take weight off the dolly

   When hooking air lines between the first trailer and the converter dolly, how do you avoid crossing them?

   1. ATrace both lines back to the tractor before each trip segment
   2. BConnect only the emergency line, since the service line is optional
   3. CConnect whichever glad hand physically reaches its mate first
   4. DMatch service to service and emergency to emergency by color code
   This chapter has 98 more questions. Practice them in the app and see your pass chance.
8. 8

   Tank Vehicles

   N endorsement

   The tank vehicle endorsement is earned by passing a knowledge test only, with no separate skills test.

   A tanker driver wants to avoid skids, which are especially dangerous when a liquid load is pushing on the tank. What causes most skids?

   1. ADriving too fast for the road and weather conditions
   2. BWorn steering components that let the front wheels wander
   3. CBrake systems that apply unevenly from one side to the other
   4. DSudden gusts of wind striking the tall sides of the tank

   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
   This chapter has 62 more questions. Practice them in the app and see your pass chance.
9. 9

   Hazardous Materials

   H endorsement

   Carriers must make detailed written reports within 30 days of an incident.

   Hazardous materials rules are built around three broad goals. Which set below matches the intent of those rules?

   1. AContainment, risk communication, and safe drivers and equipment
   2. BDelivery speed, fuel efficiency, and the lowest shipping cost
   3. CRecycling, disposal, and long-term storage of hazardous waste
   4. DRoadside inspection, fuel taxation, and vehicle registration

   Which classes may not be carried as overhang or tailgate loads?

   1. AClasses 1, 4, and 5
   2. BClasses 2.2, 6.2, and ORM-D
   3. CClasses 2, 3, and 6
   4. DClasses 7, 8, and 9
   This chapter has 234 more questions. Practice them in the app and see your pass chance.
10. 10

    School Buses

    S endorsement

    When possible, assign two responsible, older student assistants to each emergency exit and teach them how to assist the other students off the bus.

    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

    During an emergency on the route, who is primarily responsible for deciding whether students evacuate the bus or stay on board?

    1. AThe first police officer who happens to arrive at the scene
    2. BThe bus driver, as long as he or she is able to make the decision
    3. CThe oldest student seated closest to the emergency door
    4. DThe dispatcher, once contacted over the two-way radio
    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)

    Inspect for damaged, cracked, or bent rims; rims cannot have welding repairs.

    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

    Which kit, besides the first aid kit, must a school bus carry?

    1. AA window breakage kit
    2. BA body fluid cleanup kit
    3. CA tire repair kit
    4. DA spill containment kit
    This chapter has 200 more questions. Practice them in the app and see your pass chance.

The official Wyoming CDL manual