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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 Iowa 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. _______ are one of the most common problems found in roadside inspections.
Brake drums
Slack adjusters
Out-of-adjustment brakes
2. During the basic control skills test you may be asked to perform any of the following, except:
Offset back/right
Trailer jackknife
Straight line backing
3. During the vehicle inspection, you should check your clutch for:
All of the above.
4. When inspecting your vehicle, before checking the engine compartment be sure that:
the fire extinguisher is properly charged and rated.
the parking brakes are on and/or wheels chocked.
all lights are working.
5. What should be clean with no obstructions, illegal stickers, or damages to the glass?
The headlights.
The windshield.
The lighting indicators.
6. When checking the condition of wheels and rims during the pre-trip inspection, make sure that:
the end of the kingpin is even with the top of the fifth wheel.
no more than two lug nuts are missing.
no studs, spacers, clamps, or lugs are missing, bent, or broken.
7. When taking the road test, after driving under an overpass, you may be asked:
what the weight limit was.
what the posted clearance or height was.
how wide the overpass was.
8. Rust trails around the lug nuts on the tires indicate that:
the lugs may be loose.
the tire hasn't been removed in some time.
the rim is defective.
9. What maintains air pressure in the air brake system?
Air compressor
Alternator belt
Power steering fluid
10. When checking the engine compartment in a vehicle inspection, you should check all of the following except:
Engine oil level
Coolant level in radiator
Spring hangers
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IA Vehicle Inspection Test

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