Your vehicle's stopping distance can be calculated by adding together your perception distance, your reaction distance, and your vehicle's braking distance. Reaction distance is the distance traveled between the moment you mentally perceive a hazard and the moment you physically hit the brakes.

The distance you will travel between realizing you must brake and when you physically hit the brakes

The distance you will travel between a hazard becoming visible and you seeing the hazard

The distance you will travel between seeing a hazard and realizing you must brake

Always observe posted speed limits for work zones. Slow down if road or weather conditions are adverse, and slow down even more if workers are on or near the road.

Steer with one hand and keep the other hand free.

When stopping, press down the brake pedal smoothly and gradually.

Press down the brake pedal gradually.

Press down the brake pedal quickly.

Press down the brake pedal gradually.

Lift up the brake pedal quickly.

If you are asked to complete an offset back/left parking maneuver, you should first pull straight forward, then back up to the left. Your vehicle must be parked completely within the boundaries of the parking space.

Pull straight forward, then back to the left.

Drive straight back, then pull forward to the left.

Pull straight forward, then drive straight back.

Hydroplaning can occur in places where water collects on the road. Clear reflections, tire splashes, or rain drops on the road can indicate the presence of standing water.

Portions of the pavement that are dry

Distractions while driving can be physical (such as reaching for an object), mental (such as making conversation with a passenger), or both (such as holding a phone to send texts). Strategies to help you avoid distracted driving include pre-programming radio stations; planning out your route in advance; avoiding complex or emotionally taxing conversation while driving; adjusting your mirrors before setting out; and not eating, drinking, or smoking while behind the wheel.

Pre-programming radio stations.

Passenger Endorsement | Iowa 2025 #2

Train for FREE with our Iowa CDL passenger endorsement practice test online. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a IA DMV passenger endorsement in 2025, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that DMV requirements for issuing a CDL permit with passenger endorsement may vary from state to state.

Number of Question 20

Passing Score 16

Number of Tests 20

Passenger Endorsement | Iowa 2025 #2

1 . What is reaction distance?

2 . How many daily hours of sleep does an adult need to maintain alertness?

3 . When traveling through a work zone, you should:

4 . When stopping, you should:

5 . When completing an offset back/left parking maneuver, a driver should:

6 . Which of the following is an indication of standing water on the roadway?

7 . Distracted driving can be avoided by:

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