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From Sections 1, 2 and 3 of the Pennsylvania Commercial Driver's Manual

Pennsylvania CDL General Knowledge Practice Test

Who takes it: every CDL class (A, B and C).

Inspection, safe driving and cargo: every CDL applicant takes it. 50 questions, 40 right to pass (80%).

Study mode

Practice General Knowledge

  • 10questions a round
  • 8manual sections
Exam mode

Take the General Knowledge test

  • 50questions
  • 40correct to pass
  • –no test taken yet
Sections 1–3 · p. 14–86 of the Pennsylvania Commercial Driver's Manual (PUB 223 (6-26)), opens in a new tab

A General Knowledge question to try

If you double your speed, about how much more distance do you need to stop?

Tap an answer to see if you’re right, and the page

Where it is in the Pennsylvania Commercial Driver's Manual

Your score on each part fills in as you study.

  • Manual section 1
  • Introduction: tests, medical rules and disqualificationsNot practiced yetp. 1-1 to 1-15
  • Manual section 2 · 6 topics
  • Vehicle inspectionNot practiced yetp. 2-1 to 2-11
  • Vehicle control, seeing and communicatingNot practiced yetp. 2-12 to 2-18
  • Speed, space and seeing hazardsNot practiced yetp. 2-19 to 2-30
  • Night, weather, railroad crossings and mountainsNot practiced yetp. 2-31 to 2-40
  • Emergencies, skids, crashes and firesNot practiced yetp. 2-41 to 2-47
  • Alcohol, drugs, illness and hazmat basicsNot practiced yetp. 77 to 2-52
  • Manual section 3
  • Transporting cargo safelyNot practiced yetp. 3-1 to 3-4

Only in the Pennsylvania manual

Rules for this test that the Pennsylvania Commercial Driver's Manual prints and other states' manuals don't.

  • 1.4.1 Hours of Service Regulations

    Hours of service for passenger-carrying drivers: drive at most 10 hours after 8 straight hours off duty, and don't drive after being on duty 15 hours following 8 hours off. p. 1-13

  • Stopping Distance

    Pennsylvania's manual gives an alert driver's perception time as about 3/4 second (about 60 feet at 55 mph, which is about 81 feet per second) and the average reaction time as another 3/4 second, adding about 60 feet more at 55 mph. p. 2-19

Pennsylvania answers about this test

CDL General Knowledge Test guide30 rules, with the pages in each state's manual

Practice material, not the official test: check every answer in your state's current handbook. Disclaimer · How the rounds work · PennDOT

All Pennsylvania CDL tests