Massachusetts CDL Practice Test — General Knowledge, Air Brakes & Endorsements (2026)
Massachusetts' commercial driver license program requires a written knowledge test covering cargo safety, vehicle inspections, air brakes (if applicable), and combination vehicles. The test consists of 50 questions, and you must score at least 80% to pass. Applicants must first obtain a Commercial Learner's Permit (CLP) and hold it for at least 14 days before taking the road skills test. Massachusetts offers CDL tests in English, Spanish, and Portuguese. All CDL endorsements (hazmat, tanker, double/triple trailers, passenger) require passing additional exams specific to those vehicle types.
Sample Massachusetts CDL Practice Test Questions & Official Manual Citations (2026)
Below are 4 real sample questions from our Massachusetts cdl practice test bank. Every question in PassMyDMV cites the exact page and rule in the official Massachusetts manual so you understand the law behind every answer:
Sample Question 1 · Commercial Motor Vehicle Safety Act
Official Massachusetts Manual · Page 3
What was the primary outcome of the Commercial Motor Vehicle Safety Act of 1986?
- A. It mandated the use of electronic logging devices for all commercial drivers.
- B. It established uniform speed limits for commercial vehicles nationwide.
- C. It required each State to meet minimum standards for commercial driver licensing. Correct
- D. It created a federal agency to oversee all aspects of commercial transportation.
Why C. It required each State to meet minimum standards for commercial driver licensing. is correct: The Commercial Motor Vehicle Safety Act of 1986 mandated that each State meet the same minimum standards for commercial driver licensing, which led to the requirement for a Commercial Driver's License (CDL). [Manual: Pages 1-6 — Preface: Massachusetts CDL Information, p. 3]
Manual excerpt (Official Massachusetts Manual · Page 3): “On October 26, 1986, Congress passed the Commercial Motor Vehicle Safety Act of 1986. This law required each State to meet the same minimum standards for commercial driver licensing.”
Sample Question 2 · Cdl Knowledge Tests
Official Massachusetts Manual · Page 4
Which of the following knowledge tests is required for ALL Commercial Driver's License (CDL) applicants?
- A. General Knowledge Test Correct
- B. Passenger Transport Test
- C. Hazardous Materials Test
- D. Air Brakes Test
Why A. General Knowledge Test is correct: All applicants for a Commercial Driver's License (CDL) must take and pass the General Knowledge Test. Other tests like Passenger Transport, Hazardous Materials, or Air Brakes are required only for specific endorsements or vehicle types. [Manual: Pages 1-6 — Commercial Driver’s License Tests, p. 4]
Manual excerpt (Official Massachusetts Manual · Page 4): “The CDL knowledge tests include:
• the General Knowledge Test, taken by all applicants (One hour - 50 questions)”
Sample Question 3 · General Information
Official Massachusetts Manual · Page 2
Which of the following statements accurately describes the scope of the Massachusetts Commercial Driver's License Manual?
- A. It does not contemplate every possible situation a driver may encounter, nor is it intended for purposes other than educating and informing driver license applicants. Correct
- B. It is a legally binding document for all traffic laws in Massachusetts.
- C. It covers every possible situation a driver may encounter.
- D. It is intended solely for commercial driver training programs.
Why A. It does not contemplate every possible situation a driver may encounter, nor is it intended for purposes other than educating and informing driver license applicants. is correct: The manual explicitly states that 'It does not contemplate every possible situation a driver may encounter, nor is intended to be used for purposes other than those described above,' which are educating and informing Driver License applicants. [Manual: Pages 1-6 — Commercial Driver’s License Manual, p. 2]
Manual excerpt (Official Massachusetts Manual · Page 2): “It does not contemplate every possible situation a driver may encounter, nor is intended to be used for purposes other than those described
above.”
Sample Question 4 · Age Requirements
Official Massachusetts Manual · Chapter 1 · Page 7
What is the minimum age requirement to apply for a CDL in Massachusetts?
- A. 25 years old
- B. 18 years old Correct
- C. 16 years old
- D. 21 years old
Why B. 18 years old is correct: Applicants may apply for a CDL beginning at age 18. However, federal regulations require drivers to be 21 to operate in interstate commerce. [Manual: Pages 7-12 — general, p. 7]
Manual excerpt (Official Massachusetts Manual · Chapter 1 · Page 7): “Identification Requirements Age Applicants may apply for a CDL beginning at age 18.”
Most-Tested Massachusetts CDL Practice Test Topics in Our 571-Question Bank
Our Massachusetts cdl practice test bank contains 571 active multiple-choice questions written directly from the official Massachusetts handbook. Here is how those questions break down across the core exam topics:
Frequently Asked Questions: Massachusetts CDL Practice Test
All Massachusetts DMV Practice Tests & Study Guides
- Massachusetts DMV Practice Test Hub (Car, Motorcycle & CDL overview)
- Massachusetts Car Learner’s Permit Practice Test (1162 questions)
- Massachusetts Motorcycle Permit Practice Test (382 questions)
- Massachusetts CDL Commercial Practice Test (571 questions)
- Massachusetts Road Signs & Traffic Signals Practice Test (162 questions)
- Official Massachusetts Driver Manual Table of Contents & PDF Handbook
- How to Get Your Massachusetts Driver License: 2026 Step-by-Step Guide
Practice Tests for Other States
- Alabama DMV practice test
- Alaska DMV practice test
- Arizona DMV practice test
- Arkansas DMV practice test
- California DMV practice test
- Colorado DMV practice test
- Connecticut DMV practice test
- Delaware DMV practice test
- Florida DMV practice test
- Georgia DMV practice test
- Hawaii DMV practice test
- Idaho DMV practice test
- Illinois DMV practice test
- Indiana DMV practice test
- Iowa DMV practice test
- Kansas DMV practice test
- Kentucky DMV practice test
- Louisiana DMV practice test
- Maine DMV practice test
- Maryland DMV practice test
- Massachusetts
- Michigan DMV practice test
- Minnesota DMV practice test
- Mississippi DMV practice test
- Missouri DMV practice test
- Montana DMV practice test
- Nebraska DMV practice test
- Nevada DMV practice test
- New Hampshire DMV practice test
- New Jersey DMV practice test
- New Mexico DMV practice test
- New York DMV practice test
- North Carolina DMV practice test
- North Dakota DMV practice test
- Ohio DMV practice test
- Oklahoma DMV practice test
- Oregon DMV practice test
- Pennsylvania DMV practice test
- Rhode Island DMV practice test
- South Carolina DMV practice test
- South Dakota DMV practice test
- Tennessee DMV practice test
- Texas DMV practice test
- Utah DMV practice test
- Vermont DMV practice test
- Virginia DMV practice test
- Washington DMV practice test
- West Virginia DMV practice test
- Wisconsin DMV practice test
- Wyoming DMV practice test