7-Step CDL Walkaround, 4-Step Air Brake Test, Fifth Wheel & DVIR • Level A2-B1
¡Valida pruebas de frenos de aire de 4 pasos, aprueba acoplamiento de quinta rueda y autoriza reportes de inspección DVIR en vivo!
Open Phase 1: Lexicon Decks. Play native audio for the 6 concept decks. Have students repeat in chorus and individual pairs to master technical phonetics.
Switch to Phase 2: Simulator. Guide learners through the 3 interactive challenges. Ask checking questions: "What happens if we adjust this parameter?"
Assign partner roles in Phase 3: Spoken Dialogues. Students practice the 5 scenario frames, alternating speaker and responder roles in fluent English.
Debate Phase 4: Ethics Dilemmas. Then guide all students to Phase 5: Star Award, click the certificate button, and celebrate with confetti!
| Matrícula | Operador / Alumno | Rol | Fase Actual | Puntos | Estrellas | Última Inspección |
|---|---|---|---|---|---|---|
| Cargando operadores en inspección pre-viaje... | ||||||
Master the standard CDL 7-step walkaround inspection, in-cab 4-step air brake test, fifth wheel kingpin coupling, and electronic Driver Vehicle Inspection Reports (DVIR) in English.
Click on the speaker icons to listen and practice essential English for the CDL 7-step walkaround, air brake leak tests, fifth wheel kingpins, and DVIR reports:
Under-Hood Inspection • Oil Dipstick • Coolant Tank • Serpentine Belt • Steering Gearbox • 4/32\" Steer Tires
Practice professional CDL walkaround scripts, in-cab air brake demonstrations, and signing DVIR logs in English:
"Examiner, I am beginning my engine compartment inspection. Oil level is full on the dipstick, coolant surge reservoir is between min and max, and the serpentine belt has no more than three-quarters inch of deflection."
Examiner: "Good. Show me the steering gearbox, pitman arm, and drag link assembly.""Wheels are chocked. With engine off, ignition on, and parking brakes pushed in, I am holding the foot service brake down for one minute. Air loss is less than four PSI on this combination vehicle."
Examiner: "Applied pressure test passed. Proceed to the low air warning and emergency valve pop-out tests.""I am fanning the service brake. Low-air warning light and audible buzzer activated at 65 PSI. Continuing to pump the pedal; both yellow tractor and red trailer valves popped out automatically at 30 PSI."
Examiner: "Air brake test completely passed. Now inspect the fifth wheel coupling and kingpin.""The fifth wheel skid plate is properly greased with no space between the plate and trailer apron. Locking jaws are fully closed around the kingpin shank, and the release arm is locked in safety position."
Examiner: "Excellent inspection. Check your steer tire tread depth and hub oil seal.""Steer tire tread measures 5/32 inch, oil hub level is adequate, and all exterior LED lights are functioning. I am electronically signing the pre-trip DVIR log with zero safety defects."
Examiner: "Pre-trip inspection passed with one hundred percent compliance. You are certified for highway dispatch."During your morning walkaround, your tread depth gauge reads 3/32" in the major center groove of the right steer tire. Can you legally depart on your dispatch?
During the applied pressure leak-down test on your tractor-trailer combination, the gauge drops 6 PSI over 60 seconds. What action must you take?
You back under a loaded trailer, but your flashlight inspection reveals the fifth wheel locking jaws are only halfway engaged around the kingpin shank. What is the danger?
With brakes released and wheels chocked, you pull the trailer slack adjuster pushrod by hand, measuring 1.5 inches of stroke. Can you adjust it manually?
Congratulations, Driver! You have mastered the 7-step CDL walkaround inspection, in-cab 4-step air brake test, fifth wheel kingpin coupling, suspension checks, and signing electronic DVIR logs in English!