AL DMV Commercial Driver's License 4

Question 1

You are driving a truck with a manual transmission and need to cross railroad tracks. What should you avoid doing?

Accepted Answer

Shifting gears while crossing the tracks

Answer

Looking both ways

Answer

Slowing down before the tracks

Answer

Using a low gear

Question 2

What is the minimum amount of time a driver must wait before driving after their off-duty period begins under the 10-hour rule for property carriers?

Accepted Answer

10 consecutive hours off duty

Answer

8 consecutive hours off duty

Answer

12 consecutive hours off duty

Answer

6 consecutive hours off duty

Question 3

When parked on the shoulder of a highway, within what time must you place your warning devices?

Accepted Answer

Within 10 minutes

Answer

Within 30 minutes

Answer

Within 1 hour

Answer

Only if visibility is poor

Question 4

Hydroplaning is most likely to occur under which condition?

Accepted Answer

Heavy rain with worn tires and higher speeds

Answer

Dry pavement at low speeds

Answer

Fresh asphalt in cold weather

Answer

Gravel roads at any speed

Question 5

You must stop 15 to 50 feet before railroad tracks if your vehicle is carrying which of the following?

Accepted Answer

Placarded hazardous materials

Answer

Fresh produce

Answer

Livestock

Answer

Construction equipment

Question 6

What happens to your stopping distance when you double your speed from 20 mph to 40 mph?

Accepted Answer

It increases about four times

Answer

It doubles

Answer

It triples

Answer

It stays roughly the same

Question 7

During the Alabama CDL skills test, what happens if you fail the vehicle inspection portion?

Accepted Answer

The remaining test segments are not administered that day

Answer

You may continue to the basic control test anyway

Answer

You get one immediate retry

Answer

Only the road test is canceled