FREE Iowa CDL Passenger Vehicles Practice Test (2024)

1. Buses must never carry:

radioactive materials in the space occupied by people.
oxygen medically prescribed for, in the possession of a passenger, and in a container designed for personal use.
emergency hospital supplies.

2. To warn drivers behind you that you will be slowing down, you should:

turn on the parking, clearance and side-marker lights.
tap your brake pedal a few times to flash your brake lights.
turn on the right and left turn signals at the same time.

3. When approaching a vehicle for a pre-trip inspection, you should:

look under the vehicle for hazards to vehicle movement.
make sure the parking brake is on.
look under the vehicle for fuel leaks, fresh oil, coolant or grease.

4. Which of the following could cause poisonous carbon monoxide to enter the cab?

5. If your bus leans toward the outside on a banked curve, the bus:

6. Which of the following is not a rule for using turn signals?

Don't signal unless another vehicle is behind you
Signal early
Cancel your signal after you have turned

7. If you feel drowsy, you should _______ before driving.

8. To ensure rider safety, bus drivers should always check the interior of the bus before driving. Aisles and stairwells should always be:

9. To prevent fatigue during long trips you should:

10. When driving, you should check your mirrors:

every 10 seconds.
regularly.
only when there may be a problem.

CDL PASSENGER PRACTICE TEST IOWA