TEXAS CDL GENERAL KNOWLEDGE EXAM - (50 QUESTIONS) LATEST UPDATED ACTUAL
EXAM QUESTIONS AND COMPLETE SOLUTIONS | VERIFIED ANSWERS
Examiner/Administrator: Texas Department of Public Safety
TEXAS COMMERCIAL DRIVER LICENSE
GENERAL KNOWLEDGE EXAMINATION BOOKLET
Commercial Vehicle Safety & Driver Competency Assessment
Candidate Name: _______________________________________
Candidate ID/License No.: ______________________________
Testing Date: _________________________________________
Testing Center/Location: _______________________________
Exam Proctor: _________________________________________
Booklet Version: TX-CDL-GK-2026-A
This assessment is designed to evaluate the knowledge, judgment, and safety awareness
required for the lawful operation of commercial motor vehicles within the State of Texas and
,interstate commerce jurisdictions. The examination measures competency in vehicle
inspection procedures, safe driving practices, hazard perception, cargo safety, emergency
response, railroad crossing procedures, space management, and compliance with commercial
transportation regulations. Candidates are expected to demonstrate applied understanding
of defensive driving techniques and federal motor carrier safety principles relevant to
commercial driving operations.
Core Competency Areas:
Vehicle Inspection Procedures
Basic Vehicle Control
Safe Driving Practices
Cargo and Weight Distribution
Hazard Recognition
Emergency Maneuvers
Railroad Crossing Safety
Alcohol and Drug Awareness
Night and Adverse Weather Driving
Commercial Vehicle Regulations
Candidate Instructions:
• Read each question carefully before selecting an answer.
• This simulated assessment contains approximately 50 questions similar in style and
,difficulty to official CDL knowledge examinations.
• Time Allocation: 60 Minutes.
• Choose the BEST answer for each question.
• Mark only one response per question.
• Calculators and external reference materials are not permitted.
• Candidates should base answers on safe commercial driving practices and current CDL
safety standards.
• Failure to follow instructions may result in examination termination.
⚠ SECURITY NOTICE
DO NOT OPEN THIS BOOKLET UNTIL INSTRUCTED
Disclaimer: This document is an original educational simulation independently developed
to reflect the style and structure of commercial driver licensing examinations. It is not an
official examination product and does not contain actual secure exam content.
Q1. While descending a steep grade in a fully loaded combination vehicle, a driver notices
the truck gradually increasing speed even though the brakes are lightly applied. What is
the safest immediate action?
, A. Shift into a higher gear to reduce engine strain
B. Apply the brakes harder until the vehicle slows completely
C. Downshift to a lower gear and use controlled braking techniques
D. Turn off the engine temporarily to reduce momentum
Correct Answer: 🔵 C. Downshift to a lower gear and use controlled braking techniques
Explanation: 🔹 Commercial vehicles should descend hills using the same or lower gear than
was required to climb the grade. Controlled braking combined with engine braking helps
prevent brake overheating and brake fade. Option A is unsafe because higher gears increase
speed. Option B may overheat the brakes and lead to brake failure. Option D is extremely
dangerous because turning off the engine removes steering and braking assistance.
Q2. During a pre-trip inspection, a driver discovers that one of the steering axle tires has
exposed fabric. What should the driver do?
A. Continue driving if tire pressure is acceptable
B. Drive only during daylight hours
C. Replace or repair the tire before operating the vehicle
D. Reduce cargo weight and continue carefully
Correct Answer: 🔵 C. Replace or repair the tire before operating the vehicle
Explanation: 🔹 Exposed fabric indicates severe tire damage and makes the vehicle unsafe
and illegal to operate. Steering axle tire failure can cause immediate loss of control. Option A
EXAM QUESTIONS AND COMPLETE SOLUTIONS | VERIFIED ANSWERS
Examiner/Administrator: Texas Department of Public Safety
TEXAS COMMERCIAL DRIVER LICENSE
GENERAL KNOWLEDGE EXAMINATION BOOKLET
Commercial Vehicle Safety & Driver Competency Assessment
Candidate Name: _______________________________________
Candidate ID/License No.: ______________________________
Testing Date: _________________________________________
Testing Center/Location: _______________________________
Exam Proctor: _________________________________________
Booklet Version: TX-CDL-GK-2026-A
This assessment is designed to evaluate the knowledge, judgment, and safety awareness
required for the lawful operation of commercial motor vehicles within the State of Texas and
,interstate commerce jurisdictions. The examination measures competency in vehicle
inspection procedures, safe driving practices, hazard perception, cargo safety, emergency
response, railroad crossing procedures, space management, and compliance with commercial
transportation regulations. Candidates are expected to demonstrate applied understanding
of defensive driving techniques and federal motor carrier safety principles relevant to
commercial driving operations.
Core Competency Areas:
Vehicle Inspection Procedures
Basic Vehicle Control
Safe Driving Practices
Cargo and Weight Distribution
Hazard Recognition
Emergency Maneuvers
Railroad Crossing Safety
Alcohol and Drug Awareness
Night and Adverse Weather Driving
Commercial Vehicle Regulations
Candidate Instructions:
• Read each question carefully before selecting an answer.
• This simulated assessment contains approximately 50 questions similar in style and
,difficulty to official CDL knowledge examinations.
• Time Allocation: 60 Minutes.
• Choose the BEST answer for each question.
• Mark only one response per question.
• Calculators and external reference materials are not permitted.
• Candidates should base answers on safe commercial driving practices and current CDL
safety standards.
• Failure to follow instructions may result in examination termination.
⚠ SECURITY NOTICE
DO NOT OPEN THIS BOOKLET UNTIL INSTRUCTED
Disclaimer: This document is an original educational simulation independently developed
to reflect the style and structure of commercial driver licensing examinations. It is not an
official examination product and does not contain actual secure exam content.
Q1. While descending a steep grade in a fully loaded combination vehicle, a driver notices
the truck gradually increasing speed even though the brakes are lightly applied. What is
the safest immediate action?
, A. Shift into a higher gear to reduce engine strain
B. Apply the brakes harder until the vehicle slows completely
C. Downshift to a lower gear and use controlled braking techniques
D. Turn off the engine temporarily to reduce momentum
Correct Answer: 🔵 C. Downshift to a lower gear and use controlled braking techniques
Explanation: 🔹 Commercial vehicles should descend hills using the same or lower gear than
was required to climb the grade. Controlled braking combined with engine braking helps
prevent brake overheating and brake fade. Option A is unsafe because higher gears increase
speed. Option B may overheat the brakes and lead to brake failure. Option D is extremely
dangerous because turning off the engine removes steering and braking assistance.
Q2. During a pre-trip inspection, a driver discovers that one of the steering axle tires has
exposed fabric. What should the driver do?
A. Continue driving if tire pressure is acceptable
B. Drive only during daylight hours
C. Replace or repair the tire before operating the vehicle
D. Reduce cargo weight and continue carefully
Correct Answer: 🔵 C. Replace or repair the tire before operating the vehicle
Explanation: 🔹 Exposed fabric indicates severe tire damage and makes the vehicle unsafe
and illegal to operate. Steering axle tire failure can cause immediate loss of control. Option A
