Illinois Pre-trip Inspection CDL Practice Test
Practice with real IL Pre-trip Inspection exam questions and detailed explanations. Rated 4.8 stars by 1,000+ drivers.
Written by CDL holders and exam prep experts · Updated April 2026
Free Questions
10
Passing Score
Must demonstrate competency%
Time Limit
No time limit specified
Prerequisites
General Knowledge, Air Brakes, and Combination tests must be completed first
What is the Pre-trip Inspection Test?
Pre-trip inspection is a hands-on practical skills demonstration required for all commercial drivers. This is an oral examination where you must verbally explain and physically demonstrate proper vehicle inspection procedures to the examiner during your CDL skills test. Basic knowledge is covered in the General Knowledge written exam, but the actual inspection skills are demonstrated practically.
Pre-trip knowledge tested within General Knowledge; skills demonstrated during CDL test
Topic Breakdown
Engine Compartment
~6 questions
- Engine oil level and condition
- Coolant level and hoses
- Belt condition and tension
In-Cab Inspection
~5 questions
- Gauges and warning lights
- Controls and safety equipment
- Mirrors and visibility checks
External Inspection
~6 questions
- Tires and wheel condition
- Lights and reflectors
- Frame and body condition
Safety Equipment
~3 questions
- Emergency equipment requirements
- Fire extinguisher and triangles
- First aid and safety gear
Free Practice Questions
10 questionsQuestion 1 of 10
All the following may be checked at the rear of the trailer, EXCEPT:
Browse Illinois Pre-trip Inspection Questions
- 1. All the following may be checked at the rear of the trailer, EXCEPT:
- 2. Which statement is true regarding the CDL skills test?
- 3. Which component is responsible for transmitting engine power to the transmission?
- 4. Which type of mechanism is used to engage and hold the kingpin on a tandem axle trailer?
- 5. Which of the following is NOT federally regulated to be carried in every commercial motor vehicle?
- 6. Which component is used to disengage the locking jaws of the fifth wheel during coupling?
- 7. During the Class A CDL inspection portion of the test, you will need to perform one of _____ different variations of the inspection on the vehicle provided.
- 8. During the pre-trip inspection, which brake system needs to be checked to ensure it does not pull to the left or right?
- 9. What is the largest portion of the fifth wheel and must be inspected for cracks, breaks, and requires lubrication?
- 10. Which component transmits power from the transmission to the drive axle(s)?
Study Tips for Illinois
- 1Learn the 7-step method: overview, engine compartment, start engine, lights, walk-around, brake check, final
- 2Know critical safety items: brakes, steering, lights, tires, coupling devices
- 3Memorize tire inspection: 4/32 inch tread depth minimum, no cuts exposing cords
- 4Understand brake adjustment: pushrod travel limits vary by brake type
- 5Master the air brake test: static pressure test, service brake test, parking brake test
Illinois CDL Information
Age Requirements
Intrastate: 18+ · Interstate: 21+
CDL Renewal
Every 4 years
ELDT Required
Yes — ELDT (Entry-Level Driver Training) from FMCSA-registered provider
Illinois Secretary of State
Official CDL Portal →Career Opportunities
Frequently Asked Questions
Pre-trip inspection is an oral examination and practical skills demonstration required during your CDL road test. Basic knowledge is covered in the General Knowledge written exam, but the actual inspection skills are demonstrated through hands-on practical testing.
Pre-trip Inspection Study Resources
Be Ready for Your Illinois Pre-trip Inspection Test
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