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Connecticut CDL — General Knowledge practice

Penalties & Licensing

The point system, license suspension, provisional-license rules, insurance requirements, and other licensing basics.

Content reviewed against official driver handbooks · July 7, 2026

13 questions · pass with 10 correct. You get instant feedback and an explanation after every answer.

Study questions with answers

12 sample Penalties & Licensing questions with the correct answer, a short explanation, and the official handbook reference. Read through them, then take the quiz above.

  1. 1. What is the minimum age to drive a CMV in interstate commerce?

    Correct answer: 21

    Driving across state lines requires you to be at least 21 years old.

    Source: Connecticut CDL Manual - Section 1: Introduction

  2. 2. How long do you lose your CDL for a first railroad-highway grade crossing violation?

    Correct answer: 60 days

    A first grade-crossing violation costs you your CDL for at least 60 days.

    Source: Connecticut CDL Manual - Section 1: Introduction

  3. 3. You lose your CDL for at least how long after two serious traffic violations in a three-year period?

    Correct answer: 60 days

    Two serious traffic violations within three years bring a loss of your CDL for at least 60 days.

    Source: Connecticut CDL Manual - Section 1: Introduction

  4. 4. What is the minimum age required to haul hazardous materials?

    Correct answer: 21

    The law sets 21 as the minimum age for hauling hazardous materials.

    Source: Connecticut CDL Manual - Section 1: Introduction

  5. 5. For how long is a commercial learner's permit valid?

    Correct answer: One year

    A CLP is valid for one year; if you do not obtain your CDL before it expires, all knowledge tests must be retaken.

    Source: Connecticut CDL Manual - Section 1: Introduction

  6. 6. What is the youngest age at which you may apply for a commercial learner's permit?

    Correct answer: 18

    The minimum age set for obtaining a commercial learner's permit is 18.

    Source: Connecticut CDL Manual - Section 1: Introduction

  7. 7. What penalty applies to a driver's first out-of-service-order violation?

    Correct answer: 90 days

    A first out-of-service order violation results in loss of your CDL for at least 90 days.

    Source: Connecticut CDL Manual - Section 1: Introduction

  8. 8. A tank (N) endorsement is required for a tank with an individual rated capacity over what amount?

    Correct answer: More than 119 gallons

    The tank endorsement is needed when a tank holds an individual rated capacity above 119 gallons with a combined capacity reaching 1,000 gallons.

    Source: Connecticut CDL Manual - Section 1: Introduction

  9. 9. A Connecticut commercial driver's license expires within what period following your next birthday?

    Correct answer: Four years

    Your CDL runs out no more than four years past the date of your following birthday.

    Source: Connecticut CDL Manual - Section 1: Introduction

  10. 10. How long must you hold a commercial learner's permit before you may take the skills test?

    Correct answer: At least 14 days

    You must hold the CLP for at least 14 days before you can test for your CDL.

    Source: Connecticut CDL Manual - Section 1: Introduction

  11. 11. A Class A license covers combinations rated at what gross combination weight, with the towed unit over 10,000 pounds?

    Correct answer: 26,001 pounds or more

    Group A covers any combination with a GCWR of 26,001 pounds or more when the towed unit is rated above 10,000 pounds.

    Source: Connecticut CDL Manual - Section 1: Introduction

  12. 12. How long is the CDL loss for committing three or more serious traffic offenses in a three-year span?

    Correct answer: 120 days

    Three or more serious traffic violations in three years cost you your CDL for at least 120 days.

    Source: Connecticut CDL Manual - Section 1: Introduction

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Every Connecticut question is written from the official Connecticut driver handbook and checked against its current edition. DMV Test Free is a free, independent study resource — not affiliated with any DMV or government agency. About DMV Test Free