View instructions
The CDL general knowledge test is required to be taken by all CDL applicants. The Pennsylvania CDL test consists of 50 questions. To pass, you must correctly answer at least 40 questions (80%). The general knowledge test covers the contents of the Pennsylvania CDL Manual. All CDL applicants (Class A, B and C) must study the following sections: Driving Safely, Transporting Cargo Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Vehicle Inspection Test, Basic Control Skills Test, Road Test. In addition, the Class A CDL test will include questions based on the Combination Vehicles section. Take this CDL practice test now to prepare for the actual PA general knowledge test! To get your CDL, you must pass both the knowledge and skills tests. CDL knowledge tests include: General Knowledge, Passenger Transport, Air Brakes, Combination Vehicles, Hazardous Materials, Tanker Vehicles, Doubles/Triples, School Bus, Firefighter. Depending on what class of license (A, B or C) and endorsements you need, you must take one or more knowledge tests. A special endorsement is also required to drive certain types of vehicles. The following endorsements may be used with a Class A, B or C CDL: HazMat (H), Tank Vehicles (N), Tank Vehicles Transporting Hazardous Materials (X) and Passenger Transport (P). The School Bus endorsement (S) is only available for Class A or B CDL, and the Doubles/Triples endorsement (T) is only available for Class A driver's licenses.
1. If you are convicted of a traffic violation (except parking) in your personal vehicle:
you must make a written report.
you don't have to tell your employer.
your commercial driver license will not be affected.
you must tell your employer.
2. Do NOT use water on a _______ fire.
3. You should hold your steering wheel:
gently with both hands.
firmly with one hand.
firmly with both hands.
with both hands on the same side of the wheel.
4. What should you do at an accident scene, among other things, to help prevent another accident?
Stay in your vehicle andĀ file an accident report.
Call for assistance.
Put on your 4-way emergency flashers.
If you are stopping to help, park in the area immediately around the accident.
5. On a level surface:
you should use wheel chocks to hold the vehicle.
should never be used if the brakes are very wet.
wheel chocks make it easier for the vehicle to roll.
wheel chocks should not be used when the brakes are very hot.
6. Which of the following statements about using turn signals is true?
To keep others from trying to pass you, you should signal just before you turn.
You should use your turn signals when your vehicle is parked at the side of the road.
To turn safely you must keep one hand on the wheel.
None of the above.
7. When should you downshift automatic transmissions?
When you use the brake pedal during normal driving
When going down grades
When going around curves
When going up steep grades
8. In mountain driving, to select a safe speed you should:
go slightly faster than the speed limit.
select a speed that's not too fast for the weight of your vehicle and cargo, the length and steepness of the grade, and road and weather conditions.
follow the vehicle in front of you.
go 5 mph slower than the vehicle ahead.
9. When backing, you should:
back and turn toward the right side whenever possible.
back quickly.
only use mirror on the driver's side.
use the mirrors on both sides.
10. Vehicle inspections:
are required by state and federal law.
are required once a month.
are not required for trips under 50 miles.
should only be performed by a certified mechanic.
Page 1 of 5
Next page

PA CDL Knowledge Test

Number of questions: 50
Correct answers to pass:40
Passing score:80%
Share This Online CDL Test
Rate this CDL Knowledge Test
5 out of 5
based on 315 votes