CDL Prep A+ iOS App
Pass Your CDL Exam with Confidence Using CDL Prep A+
Your Ultimate Study Companion for All CDL Test Areas
Are you preparing for your Commercial Driver's License (CDL) exam? CDL Prep A+ is the comprehensive testing app designed to help you master all CDL test areas and ensure you're fully prepared on exam day.
Why Choose CDL Prep A+?
• Extensive Question Bank: Access a vast collection of practice questions covering every CDL test area, ensuring a thorough understanding of all topics.
• Realistic Practice Tests: Simulate the actual DMV exams with tests that mirror the format and content of the real CDL tests.
• Detailed Explanations: Learn from detailed answer explanations that help you understand the reasoning behind each question.
• Progress Tracking: Monitor your performance, identify weak areas, and focus your studies where it matters most.
• User-Friendly Interface: Enjoy an intuitive design that makes studying efficient and stress-free.
• Offline Access: Study anytime, anywhere without the need for an internet connection.
Start Your Journey Towards a Successful CDL Career
Content Overview
Explore a variety of topics covered in the app.
Example questions
Let's look at some sample questions
What should you do if you start feeling drowsy while driving?
Increase your speed to reach your destination fasterIgnore the feeling and keep drivingStart a phone conversation to keep you awakePull over at a safe place and rest
If you start feeling drowsy while driving, the safest thing to do is to pull over at a safe place and rest. Ignoring the feeling or trying to stay awake by other means can be dangerous.
What part of the air brake system prevents the brakes from being applied if the air pressure is too low?
The brake pedalThe slack adjusterThe spring brakesThe air compressor
The spring brakes in an air brake system are designed to engage automatically if the air pressure in the system drops too low. This is a safety feature to prevent loss of braking ability.
A slack adjuster with a 1-inch pushrod stroke is out of adjustment if:
The pushrod stroke is less than 1 inchThe pushrod stroke is more than 1 inchThe pushrod stroke is exactly 1 inchNone of the above
A slack adjuster with a 1-inch pushrod stroke is considered out of adjustment if the pushrod stroke exceeds 1 inch. This could potentially mean that the brakes will not apply properly.
What should you do if your trailer starts to jackknife while backing up?
AccelerateBrake hardSteer in the opposite directionStop and pull forward
If your trailer starts to jackknife while backing up, the best course of action is to stop and pull forward. This will straighten out the vehicle and trailer and allow you to regain control.
What should you check for in the emergency exit of your passenger vehicle during a pre-trip inspection?
Check that it is securely closedCheck that it has a functioning lockCheck that it is painted redCheck that it is wide enough for passengers
During a pre-trip inspection, you should ensure that the emergency exit is securely closed. This is to ensure that it doesn't open during travel, causing a safety hazard.
What is not allowed when loading and unloading school children?
Allowing children to exit the bus before it has completely stoppedEnsuring children are seated before moving the busHaving an adult monitor presentUsing flashing red lights and stop signals
Allowing children to exit the bus before it has completely stopped is a prohibited practice as it can lead to accidents and injuries. It is important to ensure that the bus has come to a complete stop before letting children exit.
What should you avoid doing when passengers are boarding or exiting the bus?
Engaging the parking brakeOpening the doorChecking your mirrorsEngaging the transmission
You should avoid engaging the transmission when passengers are boarding or exiting the bus. Doing so could cause the bus to move unexpectedly, posing a risk to passengers.
Which of the following materials is considered hazardous and is not allowed on a passenger vehicle?
LuggageFood itemsDrinking waterExplosives
Explosives are considered hazardous materials and are forbidden to be transported on a passenger vehicle for safety reasons.
What is the main reason for longer combination vehicles (LCVs) needing more road space?
They are heavierThey are widerThey are longerThey are slower
LCVs are typically longer than other vehicles, which means they require more road space, especially when turning or maneuvering.
What is the first thing you should check in the exhaust system during a pre-trip vehicle inspection?
Check for loose or missing boltsCheck for excessive smokeCheck for loud noisesCheck for rust
During a pre-trip vehicle inspection, the first thing you should check in the exhaust system is for any loose or missing bolts. This is to ensure that the exhaust system is securely attached to the vehicle.
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