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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 Oregon 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. What should you do to test your hydraulic brakes for leaks?
Pump the brake pedal three times, then apply pressure for 9 seconds.
Hold the brake pedal down for five seconds, then pump it three times.
Pump the brake pedal five times, then apply pressure for three seconds.
Pump the brake pedal three times, then apply pressure to the pedal and hold for five seconds.
2. In the steering box part of the vehicle inspection test, you should:
check that the steering box is not leaking.
look for any missing nuts or bolts.
check that the steering box is securely mounted.
All of the above.
3. What should be fully engaged with no loose or missing pins in the slide mechanism of the sliding fifth-wheel?
Sliding pintle
Locking jaws
Hitch release lever
Locking pins
4. Name some key suspension system parts.
Drag link, spindle and gear box
Main spring, axle and font axle hanger
Mufflers, tailpipes and vertical stacks
Pitman arm, hydraulic fluid reservoir and tie rod
5. When entering traffic on an expressway during the skills test, you should:
check for traffic.
slow down to a crawl.
cut other drivers off if needed.
avoid using turn signals.
6. Checking your vehicle's suspension system includes checking:
the mounting brackets.
the air suspension systems.
the tires.
All of the above.
7. When making a lane change during the skills test, you should:
avoid using your mirrors.
apply the parking brake.
make the necessary traffic checks first.
come to a complete stop first.
8. What should you do to test your vehicle's low air pressure warning signal?
Release the parking brake valve and the tractor protection valve and reduce the air pressure by stepping on and off the brake pedal.
With the engine running, put the vehicle in a forward gear and attempt to drive forward.
With the key in the "on" or "battery charge" position, rapidly apply and release the foot brake.
Pump the brakes until the air pressure drops below 80 psi.
9. During the driving test, when asked to make a lane change you should:
make the lane change before using proper signals.
make the change immediately without looking.
make the necessary traffic checks first and use proper signals before changing lanes.
None of the above.
10. Which of the following is NOT checked in a pre-trip inspection?
Brake controls
The amount of fuel in the vehicle
Safety equipment
Cargo securement
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OR Vehicle Inspection Test

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