20 questions per attempt
16 correct answers are needed for an 80% practice passing score.
CombinationTexas CLP Preparation
Combination vehicle safety, coupling and uncoupling, trailer inspections, rollover prevention, and trailer braking.
Study the Texas CDL handbook
Review Section(s) 6 of the Texas Commercial Motor Vehicle Drivers Handbook. Use the handbook to understand the material before practicing questions.
Open handbook sections for this topic (1.3 MB) ↗
Open the complete Texas CDL handbook ↗ · Texas DPS handbook source ↗
Planned practice test format
100 questions in the current practice bank
Online practice access is being prepared and is not available for purchase yet.
Where this topic fits
For the Class A preparation path, study after Air Brakes. Combination is not part of the Class B preparation path.
Main CLP knowledge tests
These are preparation resources. Texas DPS administers the official knowledge tests and determines licensing requirements. CLP preparation is separate from applicable FMCSA ELDT requirements.
CLP practice account and topic access
Choose any purchased topic in any order. Retest as often as you like during its 30-day access window. Every new attempt selects questions randomly and shuffles the answer choices.
Aim for at least 95% on five consecutive attempts for this topic. A lower score resets the streak. This is our practice readiness goal; it does not guarantee the official Texas DPS test result.
Account registration is available. Online purchases are being configured.