Texas CDL General Knowledge Practice Exam

Disable ads (and more) with a membership for a one time $4.99 payment

Prepare for the Texas CDL General Knowledge Exam. Study with interactive quizzes, multiple choice questions, and detailed explanations to increase your chances of passing the exam.

Practice this question and more.

During a pre-trip inspection, what should break grease be free of?

Dirt and debris
Oil and gas stains
Water and ice
Oil, grease, or brake fluid

The correct answer is: Oil, grease, or brake fluid

Break grease should be free of oil, grease, or brake fluid because these substances can affect the brake's performance and effectiveness. Dirt and debris can also cause issues, but they are not as harmful as oil, grease, or brake fluid. Oil and gas stains and water and ice should also be avoided, but they are not as critical for the safe operation of the brakes as oil, grease, or brake fluid. Therefore, D is the best and most complete answer.