CDL Practice Test (2024) - FREE PA CDL General Knowledge Test

1. An alcohol evaporator:

used to reduce the chance of the front wheels skidding.
to hold compressed air.
protects the air brake system from too much pressure.
is used to reduce the risk of ice in air brake valves and other parts during cold weather.

2. When crossing railroad tracks, you should:

stop on the tracks.
apply the parking brakes.
shift gears while crossing the tracks.
stay in your lane.

3. If your vehicle is hydroplaning, you should:

release the accelerator and push in the clutch.
accelerate to get through the water as quickly as possible.
use the brakes to slow down.
None of the above.

4. If your truck catches fire, the first thing you should do is to:

get the vehicle off the road and park near other vehicles.
pull off the road and park in an open area.
pull into a service station and call for help.
get off the vehicle, open the hood and start shooting foam to keep the engine cool.

5. Which of the following statements about driving in cold weather is true?

You should use windshield washer antifreeze.
Brakes will never fade or fail from excessive heat caused by using them too much.
Exhaust system leaks are less dangerous in cold weather.
An engine cannot overheat when the weather is very cold.

6. When is use of a drug given to a driver by a doctor permitted?

Only if it's a prescription drug.
Only if it's an over the counter drug.
Never.
Only if the doctor informs the driver that the drug won't affect safe driving ability.

7. To know when it's time to shift up:

watch your tachometer, and shift up when your engine reaches the bottom of the range.
use mirrors on both sides.
use engine speed and road speed.
check the user manual.

8. To avoid becoming distracted while driving, you should:

be careful when reading a text message on your mobiledevice while driving.
pre-program your favorite radio stations.
familiarize yourself with your vehicle's features within the first 10 miles of driving.
All of the above.

9. With the controlled braking method:

you lightly tap the brakes.
you apply your brakes all the way and release the brakes when the wheels lock up.
you use the parking brake to lock the wheels.
you apply your brakes as hard as possible without locking the wheels.

10. Passive railroad crossings:

do not have traffic control devices.
should never be crossed using a CMV.
have at least one traffic control device.
usually have a person directing traffic.

CDL PRACTICE TEST (PA) - GENERAL KNOWLEDGE TEST