View instructions
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. Which of the following engages and disengages the engine from the drive train?
The clutch
TheĀ drive shaft
TheĀ front axle
2. During the pre-trip inspection, belts should:
be checked for tightness and excessive wear.
not be inspected.
checked for oil pressure.
3. In the steering box part of the vehicle inspection test, you should:
look for any missing nuts or bolts.
check that the steering box is securely mounted.
All of the above.
4. Suspension system defects include:
cracked or broken spring hangers.
steering wheel play of more than 10 degrees.
rust around wheel nuts.
5. During the pre-trip inspection, when starting the engine you should:
fasten your safety belt.
check the coolant level in the radiator.
listen for unusual noises.
6. Pre-trip inspections:
should not be done unless the vehicle has problems that could cause a breakdown.
should always be done in the same order.
should not be done when a vehicle inspection report is available.
7. During the vehicle inspection test, you may be asked to:
replace the electrical and brake lines.
check the engine oil level.
change the coolant.
8. During a pre-trip inspection, when checking the power steering hoses, you should:
check that the brake chambers are not leaking.
look for broken or distorted coil springs.
check for leaks.
9. When checking tires, which of the following is acceptable?
Dual tires that do not come in contact with each other
Retreaded tires on the front wheels of a bus
Radial and bias-ply tires used together.
10. During the skills test, if you must stop before making the turn, you should:
let your vehicle roll.
come to a complete stop after the line to get a better view.
keep the front wheel aimed straight ahead.
Page 1 of 2
Next page

Inspection Test - IA CDL

Number of questions: 20
Correct answers to pass:16
Passing score:80%
Share This Online CDL Test
Rate this Inspection Test -CDL
4.8 out of 5
based on 133 votes