Iowa DMV CDL Doubles / Triples Quick Practice Test

Iowa DMV CDL Doubles / Triples Quick Practice Test For 2024

CDL Class A, B or C. Complete CDL driver training course. All the questions in this test are from the official DMV written exam. You can use our free online tests to evaluate how likely you are to pass the official DMV test. Or you can just cut to the chase and increase your chances of passing by upgrading to Premium Membership and unlock official DMV tests. In addition, you will also receive a master cheat sheet which contains all your state’s DMV questions and answers. Premium membership also unlocks a smart tracker which keeps an inventory of all incorrectly answered questions for easy, fast and effective revision. Practice with our free tests or hit Upgrade button below for premium access and increase your chances of passing your DMV written exam.

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Quick Facts:

Number of Questions – 20

Passing Percentage – 80%

Test Type – Free Test

1. If an unusual noise or feeling occurs in a vehicle while it is being driven, the driver should:

Assume it is not a concern and continue driving.
Hope the vehicle does alright until it is switched to another driver.
Check the situation to determine the proper solution.

2. Federal and state laws require:

Drivers to regularly inspect their vehicles.
Drivers to inspect their vehicles, but only if they believe there may be a problem.
Drivers to inspect their vehicles if planning to travel out-of-state.
Drivers to inspect their vehicles, but only if they will be transporting hazardous materials.

3. When approaching a railroad crossing, you should:

Increase your speed to get across the tracks as quickly as possible.
Roll your window down to listen for a train.
Rely on traffic control signals.
Never try to outdrive an approaching train.

4. When it is difficult for others to see your vehicle, such as at dawn or dusk, you can help other drivers by:

Keeping your lights off.
Turning your lights on.
Driving on the shoulder.
Waving an arm out the window.

5. Which of the following is not another name for convex mirrors?

Fisheye mirrors
Spot mirrors
Bug-eye mirrors
Flat side mirrors

6. If confronted by an aggressive driver, you should:

Make eye contact to better communicate with them.
Ignore their gestures.
Not move out of their path of travel.

7. If a tire rim is damaged, it should be:

Left on the vehicle.
Welded to repair the damage.
Replaced.
Put on the axle farthest from the driver.

8. If an aggressive driver is involved in a crash on the road ahead, you should:

Stop and confront the driver.
Stop a safe distance from the crash scene, wait for police to arrive, and tell them of the driver's behavior.
Block the driver in with your vehicle.

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