PennDOT Commercial Driver's License

Question 1

What should you always check during a pre-trip inspection?

Accepted Answer

The condition of the windshield wipers

Answer

The cleanliness of the truck's interior

Answer

The fuel efficiency reading

Answer

The license plate design

Question 2

When driving a commercial vehicle, what is the maximum legal blood alcohol concentration (BAC) allowed?

Accepted Answer

0.04%

Answer

0.08%

Answer

0.05%

Answer

0.00%

Question 3

If your vehicle begins to skid, what should you do?

Accepted Answer

Turn the steering wheel in the direction of the skid

Answer

Slam on the brakes immediately

Answer

Turn the steering wheel in the opposite direction of the skid

Answer

Accelerate to regain control

Question 4

How often should cargo be inspected during a trip?

Accepted Answer

Within the first 50 miles and every 150 miles thereafter

Answer

Only at the beginning of the trip

Answer

Once per day

Answer

Only when the cargo shifts

Question 5

What is the purpose of air brakes in a commercial vehicle?

Accepted Answer

To provide additional braking power

Answer

To increase fuel efficiency

Answer

To automatically stop the vehicle during engine failure

Answer

To allow for smoother acceleration