1 . Mirror adjustment can only be checked properly if:

The trailer is straight.
There is no trailer.
The vehicle is on a slight incline.

2 . Backing with a trailer is dangerous because:

It is difficult to see behind the vehicle.
Most trucks do not have the ability to move in reverse.
Cargo may fall out of the trailer.

3 . If feeling drowsy while driving, you should:

Press on and finish the trip.
Drive faster to reach your destination more quickly.
Safely leave the road and take a nap.

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

Six to seven
Seven to eight
Eight to nine
Four to five

5 . Rims with welding repairs:

Are not safe to use.
Are acceptable to be used on tires in the rear of the vehicle.
Are acceptable to be used if carrying a light load.

6 . As part of the vehicle inspection test, a CDL applicant may be asked to:

Check the engine oil level.
Replace a tire.
Remove the alternator belt.

7 . When transporting cargo, drivers must check the securement of the cargo every:

10 miles.
150 miles.
500 miles.

8 . ____ is an example of required emergency equipment.

A spare electrical fuse
A loud horn
A battery-operated flashlight

9 . 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.

10 . The standee line:

Is a line that passengers should not cross.
Is a line upon which passengers should stand.
Is a line that should be used as passengers exit the bus.

11 . If another driver is tailgating you, you should:

Move into the left lane.
Speed up.
Increase the distance between you and the vehicle ahead.
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12 . Of the following, which is the most slippery surface?

Ice that is dry
Ice that is wet
Wet pavement

13 . Hydroplaning usually occurs:

When tires are properly inflated.
When driving at speeds slower than 15 mph.
In areas where water collects on the road.

14 . What does the vehicle inspection report do?

Inform the motor carrier about problems that may need fixing
Ensure that the vehicle is inspected regularly
Keep people accountable for inspecting the vehicle

15 . 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.

16 . While driving:

Creating a text is not permitted, but reading a text is.
Creating a text is permitted, but reading a text is not.
Neither creating nor reading a text is permitted.

17 . Always perform the steps of a pre-trip inspection in the same order each time because:

You will be less likely to forget something.
You will have more time to complete the inspection.
It is required by law.

18 . Talking on a hands-free phone while driving:

Does not distract the driver.
Only distracts the driver if the driver is speaking.
Can be distracting to the driver.

19 . Which of the following is acceptable if found during a pre-trip inspection?

Mismatched tire sizes
Tread of 3/32 of an inch in the grooves of the front tires
Tires manufactured by different makers

20 . When are people usually the least alert?

In the morning
In the early evening
Late at night