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To obtain a CDL, you will be required to pass a vehicle inspection test. The vehicle inspection test, formerly known as pre-trip, is a skills test to see if you identify which features and equipment on the test vehicle should be inspected before driving. During the test, you will be asked to do an inspection of your vehicle. You will be expected to show your knowledge of the inspection process and you will be tested to see if you know whether your vehicle is safe to drive. During the CDL inspection test, DMV does not allow the use of testing aids, other than the vehicle inspection guide in the Illinois CDL Manual. To prepare for the test, study the following sections of the CDL manual: Driving Safely and the Vehicle Inspection Test. If you do not pass the CDL inspection test, the other skills tests will be postponed.
1. When approaching a vehicle for a pre-trip inspection, you should:
look under the vehicle for fuel leaks, fresh oil, coolant or grease.
look under the vehicle for hazards to vehicle movement.
start the engine and listen for unusual noises.
make sure the parking brake is on.
2. In the steering box part of the vehicle inspection test, you should:
check that the steering box is securely mounted.
check that the steering box is not leaking.
look for any missing nuts or bolts.
All of the above.
3. Rust around wheel nuts may mean:
the nuts are too tight.
the wheels or rims have had welding repairs.
the nuts are loose.
the weather is wet.
4. When starting your vehicle, oil pressure should come up to normal:
within seconds.
within 5 minutes of driving.
in about two minutes.
in about a minute.
5. Which of the following is NOT checked in a pre-trip inspection?
Safety equipment
Cargo securement
The amount of fuel in the vehicle
Brake controls
6. Suspension system defects may include all of the following except:
Cracked hoses
Missing or broken leaf springs
Distorted coil springs
Cracked spring hangers
7. During your inspection, you should look into the fifth-wheel gap and check that the _________ are fully closed around the kingpin.
couplings (U-joints)
lug nuts
locking jaws
mounting bolts
8. What is the most important reason for doing a vehicle inspection?
Liability insurance.
To avoid fines.
Safety for yourself and for other road users.
It's required by law.
9. When taking the road test, you must do all of the following except:
Obey all traffic signs
Drive in a safe and responsible manner
Wear your safety belt
Tell the examiner where you'd like to drive
10. During the vehicle inspection, when approaching the vehicle you should:
check that the parking brakes are not set.
look under the vehicle for fresh oil, fuel leaks or coolant.
check that the vehicle is parked properly.
check that the vehicle is clear.
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IL Vehicle Inspection Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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