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The passenger endorsement applies to drivers who want to drive a bus in any Class A, B, or C CDL. Applicants must pass a special knowledge test, and must pass skills tests in a passenger vehicle. The Iowa CDL passenger test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The IA passenger test covers the following sections of the Iowa CDL Manual: Driving Safely, Transporting Passengers, Vehicle Inspection Test, Basic Control Skills Test and Road Test. Take this IA practice test now to prepare for the actual passenger test!
1. Slippery surfaces usually:
can cause lack of steering power.
make it easier to stop.
make it more difficult to stop.
2. Vehicles must be equipped with emergency equipment, including:
2 battery-operated flashlights.
spare electrical fuses.
3. To make the brakes work, air brakes use:
compressed air.
hydraulic air.
4. Which of the following is NOT a reason for hydraulic brake failure?
Brake fade on long hills
Stab braking
Loss of hydraulic pressure
5. When changing lanes, you should:
turn sharply.
do it quickly so other vehicles won't get into the lane.
do it slowly, so a driver you did not see may have a chance to honk their horn.
6. Which of the following is not a way to know when to change gears?
Use road speed (mph)
Check that the pressure gauge shows normal oil pressure
Use engine speed (rpm)
7. If the road is icy, you should:
reduce speed to a crawl and stop driving as soon as you can safely do so.
put the transmission in neutral and stay off the brake until the vehicle has slowed down, then pull off the road and stop.
maintain your current speed and stop driving as soon as you can safely do so.
8. Activities inside the vehicle that can distract your attention include:
talking to passengers.
adjusting the radio.
All of the above.
9. When driving through a construction zone, you should:
maintain your speed, unless there are people working on or near the roadway.
turn on your parking lights.
watch for pavement drop-offs.
10. If the ABS is not working:
the vehicle will have no brakes.
the vehicle will have weak brakes.
you still have normal brake functions.
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Passenger Test - IA CDL

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