CA CDL General Knowledge Exam 2025
Questions and Answers
When do strong winds affect driving the most? - ANS When exiting tunnels
For your safety, when you place your reflective triangles you should: - ANS Hold the triangles
with the reflective side between you and oncoming traffic
Which of these statements is not true about backing a heavy vehicle? - ANS You should back
slowly until you slightly bump into the dock
The best drivers are those who watch and prepare for hazards. This is called being: -
ANS Defensive
When you drive in the mountains, you will have to use lower gears to drive safely down grades.
Which of these does not affect your choice of gears? - ANS Tire tread type
CDL medical certificates must be renewed every: - ANS Two years
Which of these is not a proper use of vehicle lights? - ANS Flashing your brake lights to stop
someone tailgating
Pg. 1 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
, You wish to turn right from a two-lane, two-way street into another. Your vehicle is so long that
you must swing wide to complete the turn. How should you make the turn? - ANS Swing
wide in the opposite lane of the lane you are attempting to enter
Which of the following may be a sign of tire failure? - ANS Wheels fishtailing
Controlled braking: - ANS Is used to keep a vehicle in a straight line when braking
You should try to park your vehicle so: - ANS You can pull forward when you leave
How far should a driver look ahead of the vehicle while driving? - ANS 12-15 seconds
How many missing or broken leaves in any leaf spring will cause a commercial vehicle to be
placed out of service? - ANS One-fourth of the total number
What should you do before driving in the mountains? - ANS Know the escape ramp locations
on your route
You are checking your brakes and suspension system during a pre-trip inspection. Which of
these statements is true? - ANS Brake shoes should not have oil, grease, or brake fluid on
them
When you must stop on a one-way or divided highway, you should place your reflective
triangles at which of the following locations? - ANS 10 feet, 100 feet, and 200 feet toward
approaching traffic
Whenever you double your speed, it will take about how many times as much distance to stop?
- ANS Four
Pg. 2 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
Questions and Answers
When do strong winds affect driving the most? - ANS When exiting tunnels
For your safety, when you place your reflective triangles you should: - ANS Hold the triangles
with the reflective side between you and oncoming traffic
Which of these statements is not true about backing a heavy vehicle? - ANS You should back
slowly until you slightly bump into the dock
The best drivers are those who watch and prepare for hazards. This is called being: -
ANS Defensive
When you drive in the mountains, you will have to use lower gears to drive safely down grades.
Which of these does not affect your choice of gears? - ANS Tire tread type
CDL medical certificates must be renewed every: - ANS Two years
Which of these is not a proper use of vehicle lights? - ANS Flashing your brake lights to stop
someone tailgating
Pg. 1 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
, You wish to turn right from a two-lane, two-way street into another. Your vehicle is so long that
you must swing wide to complete the turn. How should you make the turn? - ANS Swing
wide in the opposite lane of the lane you are attempting to enter
Which of the following may be a sign of tire failure? - ANS Wheels fishtailing
Controlled braking: - ANS Is used to keep a vehicle in a straight line when braking
You should try to park your vehicle so: - ANS You can pull forward when you leave
How far should a driver look ahead of the vehicle while driving? - ANS 12-15 seconds
How many missing or broken leaves in any leaf spring will cause a commercial vehicle to be
placed out of service? - ANS One-fourth of the total number
What should you do before driving in the mountains? - ANS Know the escape ramp locations
on your route
You are checking your brakes and suspension system during a pre-trip inspection. Which of
these statements is true? - ANS Brake shoes should not have oil, grease, or brake fluid on
them
When you must stop on a one-way or divided highway, you should place your reflective
triangles at which of the following locations? - ANS 10 feet, 100 feet, and 200 feet toward
approaching traffic
Whenever you double your speed, it will take about how many times as much distance to stop?
- ANS Four
Pg. 2 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
