Idaho DMV CDL General Knowledge Quick Practice Test 2

Idaho DMV CDL General Knowledge Quick Practice Test 2 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. A pre-trip inspection:

Should never be completed the same way two times in a row.
Should always be completed in the same order.
Should only be done if it is sunny outside.
Should not be done if the driver thinks the vehicle is in good operating order.

2. Tread depth in the major grooves on a front tire should be at least:

3/4 of an inch.
1/2 of an inch.
4/32 of an inch.
1/16 of an inch.

3. If operating a school bus, you are considered to be driving under the influence of alcohol if you have a minimum blood alcohol content (BAC) of:

0.02 percent.
0.04 percent.
0.08 percent.
0.1 percent.

4. When entering a foggy area, you should:

Stop on the side of the roadway.
Pass other vehicles.
Slow down.
Use your high beam headlights.

5. When taking the on-road driving test, you will be evaluated on your lane usage. Which of the following is an example of poor lane usage?

Not driving over curbs or sidewalks
Stopping behind crosswalks
Driving in the leftmost lane if more than one driving lane is available
Finishing a right turn in the rightmost lane

6. Too much air pressure in a tire:

Is not possible.
Is encouraged on long drives.
Can be dangerous.

7. States verify that a CDL or CLP driver has only one such license by:

Making phone calls to surrounding states.
Using a computerized system that links all states.
Asking the driver.
Looking through the driver's wallet.

8. How can you check for a leak in hydraulic brakes?

Pump the brake pedal three times, then hold down the pedal for five seconds. If the pedal moves, there may be a problem.
Push the brake pedal down as far as possible and release. If the brake pedal returns to its normal position, there may be a problem.
Push the brake pedal down as far as possible and release. If the brake squeaks, there may be a problem.

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