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Iowa CDL DMV Endorsement Passenger 1

Take 10 practice tests for CDL is the best way to prepare for your Iowa DMV exam is by taking our free practice tests. The following question are from real Iowa DMV practice test. More than 95% people pass a DMV exam when practice at DMV Practice Test.

Number of Test
10
Number of Question
20
Passing score
16
13%
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  • 0Incorrect
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1. What should be done to prevent an engine fire from spreading?
Leave the engine turned on
Turn the engine turned off
Open the hood

To help stop an engine fire from spreading, turn the engine off as soon as possible.

2. While driving, if you notice anything that affects safety or could lead to mechanical problems, you should:
Wait to see if the problem goes away.
Include the concerns in your written report.
Try to fix the issue yourself.

After finishing a day of driving, you may have to complete a written report on the condition of your vehicle. Be sure to mention anything that could affect safety or lead to mechanical breakdown.

3. Within 10 minutes of stopping on the side of the road, you must:
Place emergency warning devices.
Alert local law enforcement.
Call a mechanic.

If you must stop on the side of the road, you must place the appropriate emergency warning devices within 10 minutes of stopping.

4. Texting while driving should:
Only be done on straightaways.
Only be done in curves.
Not be done.

Texting while driving is a dangerous distraction and is prohibited at all times when operating a CMV.

5. If unable to tell if the road is becoming icy and slippery, a driver:
Should try guessing.
May open their window and feel the front of the side mirror for ice.
Should look at the road closely.

If you think the road surface may be becoming icy but you are not certain, you can open your window and feel the front of the side mirror, mirror support, or antenna. If ice has formed on any of these items, the road is likely becoming icy as well.

6. Roads are the most slippery right after it begins to rain because:
The water mixes with the oil and grease on the road that have not yet washed away.
Roads are naturally slippery.
The gravel gets washed into the middle of the lane.

Roads are particularly slippery when it first begins to rain. The water mixes with oil drippings on the road that have not yet washed away, creating a slippery and dangerous mixture.

7. When transporting cargo, drivers must check the securement of the cargo every:
10 miles.
150 miles.
500 miles.

The securement of cargo must be checked within the first 50 miles of a trip, and then again every three hours or 150 miles.

8. Backing with a trailer is dangerous because:
It is difficult to see behind the vehicle.
Most trucks do not have the ability to go in reverse.
Cargo may fall out of the trailer.

Backing up is always dangerous because it is impossible to see everything that is behind you. Only drive in reverse if it is absolutely necessary.

9. To prevent becoming an aggressive driver you should:
Increase your speed.
Make gestures at other drivers.
Give other drivers the benefit of the doubt.

To avoid engaging in aggressive driving behavior, it is helpful to give other drivers the benefit of the doubt. Assume that they have valid reasons for what they are doing and don't take their actions personally.

10. When slowing down, you should ____ to warn other drivers
Use a turn signal
Sound your horn
Tap your brakes

Before slowing down, it can be a good idea to lightly tap your brakes. This will cause your brake lights to flash, providing a warning to motorists behind you.

11. To use the controlled braking method, you should:
Lock your wheels while braking.
Apply your brakes as firmly as possible without locking the wheels.
Slightly tap the brakes.

Controlled braking is the method of applying a vehicle's brakes as hard as possible without locking the wheels. A driver should keep steering wheel movements very small if braking while using this method.

12. When alley docking, you should first:
Position your vehicle directly in front of the alley.
Back up directly in front of the alley.
Stop parallel to the outer boundary of the alley.

If you are asked to alley dock, you should first pull past the alley and stop your vehicle in a position that is parallel to the outer boundary. From there, you should back your vehicle entirely into the alley parking area. Your vehicle should be parked in a straight position within the boundaries of the parking space.

13. A bus driver is:
Exempt from wearing a seat belt.
Not required to wear a seat belt, but encouraged to.
Always required to wear a seat belt.

The driver's seat of a bus should be equipped with a seat belt, which should always be used by the driver.

14. When inspecting the windshield before a trip, a person should do all the following, except:
Remove and sharpen the wiper blades.
Check the windshield wipers for proper spring tension.
Check the wiper blades for damage.

When inspecting your windshield, you should look for cracks or other problems that could interfere with your ability to clearly see the road. The windshield wiper arms should be checked for proper spring tension. The wiper blades should be checked for damage, stiff rubber, and improper securement.

15. A lane change:
Should be done quickly.
Should be done slowly.
Should be done with a jerking motion.

Lane changes should be made slowly and smoothly.

16. If driving so slowly that you could impede the flow of traffic, you should:
Drive on the shoulder.
Drive while using your emergency flashers.
Drive without using any lights.

If you must drive so slowly that you will impede the flow of traffic, you should turn on your four-way flashers to alert drivers behind you (as long as local laws allow the use of flashers).

17. A ramp's posted speed limit:
Is suitable for all vehicles.
Is suitable for some vehicles, but may be too fast for a large CMV.
Is just a suggestion and may be exceeded.

Posted speed limits on exit and entrance ramps often show speeds that are safe to be driven by cars. However, these speed limits may be too fast for large or heavily-loaded vehicles and CMV drivers will likely need to slow down to a speed below the posted limit.

18. Compared to talking on a cell phone while driving, texting while driving is:
Much safer.
Just as safe.
More dangerous.

Texting while driving is even more dangerous than speaking on a phone while driving. In addition to being mentally distracting, texting is also physically distracting.

19. If confronted by an aggressive driver, you should:
Keep your vehicle in front of them.
Make eye contact with them
Ignore their gestures.

If confronted by an aggressive driver, don't let yourself be provoked by their actions or angry gestures. Do not risk provoking the other driver by making eye contact. Get out of their way if you can do so safely.

20. If your vehicle is hydroplaning, you should:
Accelerate.
Not use the brakes.
Put the vehicle in reverse.

If your vehicle begins to hydroplane, do not apply the brakes. Instead, slow down by releasing the accelerator and pushing in the clutch. This will help you to regain traction.

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