CT · CDL Class B

Connecticut Class B CDL Practice Questions and Study Guide

Use these 100 Connecticut Class B CDL practice questions to review the subjects represented in the saved bank: general knowledge, air brakes, hazardous materials, tank vehicles, passenger vehicles, and school buses. Each item includes four answer choices and an explanation, but this practice format is not the official Connecticut exam format or question count. Class B applicants prepare for general knowledge, while air-brake and endorsement-specific testing applies only when the vehicle, equipment, cargo, or intended operation makes it relevant. Connecticut applicants should also confirm current commercial learner's permit identity, medical, self-certification, Clearinghouse, ELDT, and skills-test requirements before relying on any study aid. Combination Vehicles and Doubles/Triples are not treated as routine Class B modules in this bank.

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Every test draws only from the Connecticut CDL Class B question bank.

20questionsStart Class B test → 40questionsStart Class B test → 60questionsStart Class B test → 80questionsStart Class B test →

LICENSING GUIDE

What to know before you test

Use this overview together with the latest official guidance linked below.

Confirm that Class B matches the vehicle you plan to drive

Connecticut Class B covers a single vehicle with a gross vehicle weight rating of 26,001 pounds or more, including a qualifying Class B vehicle towing another vehicle with a GVWR of 10,000 pounds or less. The basic Class B path centers on General Knowledge. Air Brakes applies when the vehicle is equipped with air brakes. Passenger, school bus, tank, and hazardous-materials testing applies only when the applicant seeks the corresponding operation or endorsement. Combination Vehicles and Doubles/Triples are not routine Class B modules, so this practice bank excludes them while still covering conditional Class B specialties.

Meet Connecticut CLP identity, medical, and age requirements

Connecticut requires a commercial learner's permit before the CDL. DMV guidance says an applicant must be at least 18 for intrastate commercial driving and at least 21 for interstate operation or hazardous-material hauling. Current CLP instructions require a valid Connecticut driver license, REAL ID documentation, a Social Security number, proof of legal presence, two proofs of Connecticut residence, self-certification, and the commercial-license application. A valid medical examiner certificate must be on file; Connecticut now receives required medical certification electronically from the National Registry. DMV also checks Drug and Alcohol Clearinghouse status for applicable CDL and CLP transactions.

Prepare for knowledge tests and complete ELDT when required

Connecticut's current general knowledge test has 50 questions and requires 40 correct answers. Air Brakes and endorsement tests have separate question counts and passing scores when they apply. First-time Class B applicants subject to federal Entry-Level Driver Training rules must complete required Class B training with a registered provider before the CDL skills test. Applicants seeking first-time passenger, school-bus, or hazardous-materials endorsements can also have separate ELDT obligations. Use the Connecticut Commercial Driver License Manual identified by DMV and match your study plan to the tests required for the vehicle and endorsements you actually intend to operate.

Prepare for the three-part skills evaluation and test vehicle rules

Connecticut's CDL skills-test process evaluates applicants on vehicle inspection, basic vehicle control on a static course, and on-road driving. Bring a representative vehicle for the class sought, a qualified CDL driver who can legally operate it to and from the test, your valid Connecticut driver license, commercial learner's permit, validated CDL application, and any required medical-waiver documents. The test vehicle must represent the class and privileges sought. Connecticut states that failing any part means the entire skills test is failed; the applicant must submit a new application, pay the required test fee again, and wait at least seven days before another skills test.

REQUIREMENTS OVERVIEW

Connecticut CDL Class B requirements

Requirements depend on the applicant and can change. Verify each item with the cited agency.

age

Connecticut Class B CLP/CDL applicants

Connecticut requires applicants to be at least 18 years old for intrastate commercial driving and at least 21 to operate interstate or haul hazardous materials.

documents

Connecticut applicants seeking a Class B commercial learner permit

Current CLP instructions require a valid Connecticut driver license, REAL ID identity documentation, Social Security number, proof of legal presence, two Connecticut-residence documents, self-certification, and the commercial-driver application. A valid medical examiner certificate must be on file, and DMV checks Clearinghouse status.

tests

Connecticut Class B applicants and applicants seeking equipment- or endorsement-specific privileges

Class B applicants must pass the general knowledge test. Air Brakes applies when the vehicle is air-brake equipped; passenger, school bus, tank, hazardous-materials, and other endorsement tests apply when the intended operation requires them. Applicants then complete the required CDL skills test.

passing

Connecticut CDL applicants taking current knowledge tests

Connecticut lists 50 questions with 40 correct required for the general knowledge test. It lists 20 questions with 16 correct for the school bus, passenger, and tanker tests; 25 with 20 correct for Air Brakes; and 30 with 24 correct for Hazardous Materials.

applicability

Connecticut Class B applicants using this mixed 100-question practice bank

The saved bank covers six modules. General knowledge is core Class B preparation; air-brake and endorsement-specific modules are conditional on the vehicle, equipment, cargo, or service. Combination Vehicles and Doubles/Triples are excluded as routine Class B modules. The 100-question bank is a study tool and does not represent one official Connecticut exam blueprint.

OFFICIAL REFERENCES

Sources for this guide

Open the current source before relying on licensing details.

How to get a commercial learner’s permit in CTAge, CLP documents, medical certificate, Clearinghouse, ELDT, knowledge tests, test counts and passing scoresOpen source ↗ CDL classes, endorsements, and restrictionsClass B definition and endorsement scopeOpen source ↗ Take the CDL skills test commercial driversRepresentative vehicle, required items, vehicle inspection, static course, on-road test, retest waiting periodOpen source ↗ Get a commercial driver’s licenseConnecticut CDL process and ELDT guidanceOpen source ↗ Connecticut Commercial Driver License Manual - Modernized Testing SystemCommercial knowledge and skills subjects, including Class B and endorsement materialOpen source ↗ Entry-Level Driver Training (ELDT)Federal ELDT applicability for first-time Class A/Class B, Class B-to-A upgrades, and first-time S/P/H endorsementsOpen source ↗