TEXAS CDL BRAKE SYSTEMS INSPECTION EXAM - (25 QUESTIONS) LATEST UPDATED
ACTUAL EXAM QUESTIONS AND COMPLETE SOLUTIONS | VERIFIED ANSWERS
Examiner/Administrator: Texas Department of Public Safety
TEXAS COMMERCIAL DRIVER LICENSE
BRAKE SYSTEMS INSPECTION CERTIFICATION ASSESSMENT
Candidate Name: _______________________________________
Candidate ID Number: ___________________________________
Date of Examination: ___________________________________
Testing Center / Location: _______________________________
Class of CDL Applied For: _______________________________
Examiner Signature: ____________________________________
CORE COMPETENCY AREAS
Air Brake System Components
, Hydraulic Brake Inspection Procedures
Air Pressure Build-Up and Leakage Testing
Brake Adjustment and Slack Adjusters
Emergency and Parking Brake Systems
Low Air Warning Devices
Spring Brake Function Testing
Brake Drum and Rotor Inspection
Safe Operating Pressure Ranges
Pre-Trip Brake Inspection Standards
This assessment evaluates a commercial driver candidate’s ability to inspect, identify, and
verify the safe operation of brake systems commonly used on commercial motor vehicles
operating within Texas and interstate jurisdictions. Candidates are expected to demonstrate
knowledge of air brake inspection procedures, pressure testing standards, component
identification, warning systems, parking brake operation, and defect recognition. The
examination reflects the technical terminology, inspection sequence, and safety priorities
typically associated with CDL brake systems testing and pre-trip inspection evaluations
administered during commercial driver qualification processes.
,CANDIDATE INSTRUCTIONS
Time Allocation: 60 Minutes
Approximate Total Questions on Official Assessment: 25 Multiple-Choice Questions
Read each question carefully before selecting your answer. Choose the best answer based on
standard CDL brake inspection procedures and commercial vehicle safety regulations. Some
questions contain realistic inspection scenarios requiring technical judgment and applied
understanding of air brake operation. Marks are awarded only for the best correct response.
Candidates should ensure all responses are clear and complete.
SECURITY NOTICE
DO NOT OPEN THIS BOOKLET UNTIL INSTRUCTED
Disclaimer: This examination is an original educational simulation designed to reflect the
structure, terminology, and competency areas commonly associated with Texas CDL brake
systems inspection testing. It is not an official examination product and is intended solely for
training and preparation purposes.
, Q1. During a pre-trip inspection of an air brake system, a driver observes that the air
pressure drops from 120 psi to 108 psi within one minute after fully applying the brake
pedal. What does this most likely indicate?
A. Normal brake operation
B. Excessive air leakage in the service brake system
C. Proper governor cut-out pressure
D. Faulty parking brakes only
Correct Answer: 🔵 B. Excessive air leakage in the service brake system
Explanation: 🔹 A fully applied air brake system should not lose air pressure beyond
acceptable leakage limits. A pressure drop from 120 psi to 108 psi in one minute exceeds
normal standards for most commercial vehicles, indicating excessive leakage within the
service brake system. Option A is incorrect because the leakage exceeds safe tolerance levels.
Option C relates to compressor governor operation rather than leakage testing. Option D is
incorrect because parking brakes are not the primary cause during a service brake
application leakage test.
Q2. A commercial driver performing a brake inspection notices that the low air warning
light activates at 58 psi. What should the driver conclude?
A. The warning system is functioning properly
B. The compressor governor is defective
ACTUAL EXAM QUESTIONS AND COMPLETE SOLUTIONS | VERIFIED ANSWERS
Examiner/Administrator: Texas Department of Public Safety
TEXAS COMMERCIAL DRIVER LICENSE
BRAKE SYSTEMS INSPECTION CERTIFICATION ASSESSMENT
Candidate Name: _______________________________________
Candidate ID Number: ___________________________________
Date of Examination: ___________________________________
Testing Center / Location: _______________________________
Class of CDL Applied For: _______________________________
Examiner Signature: ____________________________________
CORE COMPETENCY AREAS
Air Brake System Components
, Hydraulic Brake Inspection Procedures
Air Pressure Build-Up and Leakage Testing
Brake Adjustment and Slack Adjusters
Emergency and Parking Brake Systems
Low Air Warning Devices
Spring Brake Function Testing
Brake Drum and Rotor Inspection
Safe Operating Pressure Ranges
Pre-Trip Brake Inspection Standards
This assessment evaluates a commercial driver candidate’s ability to inspect, identify, and
verify the safe operation of brake systems commonly used on commercial motor vehicles
operating within Texas and interstate jurisdictions. Candidates are expected to demonstrate
knowledge of air brake inspection procedures, pressure testing standards, component
identification, warning systems, parking brake operation, and defect recognition. The
examination reflects the technical terminology, inspection sequence, and safety priorities
typically associated with CDL brake systems testing and pre-trip inspection evaluations
administered during commercial driver qualification processes.
,CANDIDATE INSTRUCTIONS
Time Allocation: 60 Minutes
Approximate Total Questions on Official Assessment: 25 Multiple-Choice Questions
Read each question carefully before selecting your answer. Choose the best answer based on
standard CDL brake inspection procedures and commercial vehicle safety regulations. Some
questions contain realistic inspection scenarios requiring technical judgment and applied
understanding of air brake operation. Marks are awarded only for the best correct response.
Candidates should ensure all responses are clear and complete.
SECURITY NOTICE
DO NOT OPEN THIS BOOKLET UNTIL INSTRUCTED
Disclaimer: This examination is an original educational simulation designed to reflect the
structure, terminology, and competency areas commonly associated with Texas CDL brake
systems inspection testing. It is not an official examination product and is intended solely for
training and preparation purposes.
, Q1. During a pre-trip inspection of an air brake system, a driver observes that the air
pressure drops from 120 psi to 108 psi within one minute after fully applying the brake
pedal. What does this most likely indicate?
A. Normal brake operation
B. Excessive air leakage in the service brake system
C. Proper governor cut-out pressure
D. Faulty parking brakes only
Correct Answer: 🔵 B. Excessive air leakage in the service brake system
Explanation: 🔹 A fully applied air brake system should not lose air pressure beyond
acceptable leakage limits. A pressure drop from 120 psi to 108 psi in one minute exceeds
normal standards for most commercial vehicles, indicating excessive leakage within the
service brake system. Option A is incorrect because the leakage exceeds safe tolerance levels.
Option C relates to compressor governor operation rather than leakage testing. Option D is
incorrect because parking brakes are not the primary cause during a service brake
application leakage test.
Q2. A commercial driver performing a brake inspection notices that the low air warning
light activates at 58 psi. What should the driver conclude?
A. The warning system is functioning properly
B. The compressor governor is defective
