Georgia CDL Air Brakes Practice Test (GA) 2

4.9 out of 5 (58 votes)
80% Passing score
20 Questions
4 Mistakes allowed
In the heart of GA, where the roads wind through picturesque landscapes and bustling cities, preparing for your commercial driver's license air brakes endorsement is a crucial step. Our Georgia CDL air brake practice test offers a comprehensive and reliable way to ensure you're fully prepared. This test includes 20 multiple-choice questions that cover essential topics such as components, operation, safety inspections, and stopping distance calculations. One key area is the dual air brake systems, which are vital for enhancing safety by providing a backup in case one system fails. To pass, you need to answer 16 questions correctly. Unlike unreliable 'cheat sheets' that might offer questionable shortcuts, our Georgia CDL air brake practice test is a legitimate and trusted study tool. We believe in thorough preparation, which is why our GA CDL air brake practice test can be taken as many times as you need. This flexibility allows you to become comfortable with the questions and ensures that you're truly ready for the actual test. In Georgia, driving can come with unique challenges, from navigating the busy streets of Atlanta to traversing the rural backroads dotted with peach orchards and pecan groves. Our Georgia CDL air brake test is designed to help you master the necessary knowledge to handle these diverse driving environments confidently. Additionally, there's no time limit on our GA CDL air brake practice test, so you can take your time to work through each question carefully. This thoughtful approach allows you to fully understand the material, reducing the pressure and helping you retain the information better. Whether you're driving through the rolling hills of North Georgia or the coastal plains near Savannah, having a solid understanding of air brake systems is essential for your safety and the safety of others on the road. Our Georgia CDL air brake practice test is here to support you every step of the way, ensuring you have the knowledge and confidence to succeed.
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Sample Georgia Air Brakes Test Questions

Question 1

During the pressure-buildup test on a dual air brake vehicle, what should the gauges show with the engine at operating rpm?

  1. A. Pressure rising from 85 to 100 psi within three minutes
  2. B. Pressure rising from 85 to 100 psi within 45 seconds
  3. C. The compressor cutting out at 75 psi
  4. D. The safety valve opening at 125 psi

Correct answer: B. – Pressure rising from 85 to 100 psi within 45 seconds

At operating rpm, a dual air system should normally build pressure from 85 to 100 psi within 45 seconds. Vehicles with air tanks larger than the required minimum may have a longer acceptable buildup time. In that situation, use the vehicle manufacturer’s specifications to determine whether the compressor is operating correctly.

Source: Georgia Commercial Driver’s Study Guide — § 5.3, “Check Rate of Air Pressure Buildup”

Question 2

During a sudden emergency stop, what should your braking technique allow you to do?

  1. A. Apply the parking brake before using the brake pedal
  2. B. Keep the vehicle straight while retaining the ability to steer
  3. C. Lock every wheel to obtain maximum braking force
  4. D. Make large steering movements while braking hard

Correct answer: B. – Keep the vehicle straight while retaining the ability to steer

Emergency braking should keep the vehicle traveling in a straight line while preserving the ability to steer if necessary. Controlled braking applies the brakes as hard as possible without locking the wheels. With stab braking, the brakes are released after the wheels lock and reapplied once the wheels begin rolling again.

Source: Georgia Commercial Driver’s Study Guide — § 5.4.3, “Emergency Stops”

Question 3

If the ABS malfunction light stays on, the vehicle still has its regular braking capability.

  1. A. TRUE
  2. B. FALSE

Correct answer: A. – TRUE

The statement is true. ABS is added to the normal braking system and operates when wheels are about to lock. If ABS malfunctions, the regular brakes remain available, although the protection against wheel lockup may be lost. Georgia’s CDL study guide directs drivers to operate normally and have the ABS serviced soon.

Source: Georgia Commercial Driver’s Study Guide — § 5.4.2, “Braking with Antilock Brakes”

Question 4

After selecting the proper low gear for a long, steep downgrade, which braking method is correct?

  1. A. Wait until speed is 5 mph above the safe speed, then brake only to the safe speed
  2. B. Use only the trailer brakes to control speed
  3. C. Continuously use stab braking throughout the downgrade
  4. D. Use engine braking, then brake at the safe speed until about 5 mph below it

Correct answer: D. – Use engine braking, then brake at the safe speed until about 5 mph below it

Begin the downgrade in the proper low gear and use the engine’s braking effect. When the vehicle reaches the selected safe speed, apply the service brakes firmly enough to produce a definite slowdown. Release them after reducing speed to approximately 5 mph below the safe speed, then repeat the process when the vehicle returns to that speed.

Source: Georgia Commercial Driver’s Study Guide — § 5.4.6, “Proper Braking Technique”

Question 5

Which procedure correctly checks free play in manual slack adjusters?

  1. A. Apply the service brakes and watch the adjusters from inside the cab
  2. B. Drain all air pressure before checking the adjusters
  3. C. Park level, chock the wheels, release the parking brakes, and pull the adjusters
  4. D. Apply the emergency brakes and pull on the push rods

Correct answer: C. – Park level, chock the wheels, release the parking brakes, and pull the adjusters

Park on level ground, secure the vehicle by chocking the wheels, and release the parking brakes. Georgia’s CDL manual instructs the driver to wear gloves and pull hard on each reachable slack adjuster. Movement of more than about one inch where the push rod attaches indicates that the brake probably needs adjustment.

Source: Georgia Commercial Driver’s Study Guide — § 5.3.2, “During Step 5 Walk-around Inspection—Check Slack Adjustment on S-cam Brakes”

Question 6

Why should you avoid repeatedly pumping the service brakes on a long downgrade?

  1. A. It can overheat the brakes and contribute to brake fade
  2. B. It cools the brake linings too quickly
  3. C. It conserves air while increasing braking force
  4. D. It eliminates the need to select a low gear

Correct answer: A. – It can overheat the brakes and contribute to brake fade

Excessive service-brake use creates heat and can cause brake fade or failure. On a long or steep downgrade, the service brakes should supplement the engine’s braking effect rather than provide all speed control. Use the proper low gear and make firm, periodic applications that reduce speed to about 5 mph below the selected safe speed.

Source: Georgia Commercial Driver’s Study Guide — § 5.4.5, “Brake Fading or Failure”; § 5.4.6, “Proper Braking Technique”

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