From Sections 1, 2 and 3 of the Massachusetts Commercial Driver’s License Manual

Massachusetts 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. 3–92 of the Massachusetts Commercial Driver’s License Manual (Version March 2025 (Rev. 1025)), opens in a new tab

A General Knowledge question to try

To be licensed for air brakes in Massachusetts, what vehicle must you test in?

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

Where it is in the Massachusetts Commercial Driver’s License Manual

Your score on each part fills in as you study.

  • Manual section 1
  • Introduction: Massachusetts CDL rules, classes, tests, medical rules and disqualificationsNot practiced yetp. i to 1-11
  • Manual section 2 · 6 topics
  • Vehicle inspectionNot practiced yetp. 2-1 to 2-7
  • Vehicle control, shifting, seeing and communicatingNot practiced yetp. 2-8 to 2-13
  • Speed, space, hazards and distractionNot practiced yetp. 2-14 to 2-24
  • Night, weather, railroad crossings and mountainsNot practiced yetp. 2-25 to 2-33
  • Emergencies, skids, crashes and firesNot practiced yetp. 2-34 to 2-39
  • Alcohol, drugs, illness and hazmat basicsNot practiced yetp. 2-40 to 2-44
  • Manual section 3
  • Transporting cargo safelyNot practiced yetp. 3-1 to 3-3

Massachusetts 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 · RMV

All Massachusetts CDL tests