Georgia CDL Combination Test (GA) 2026

4.9 out of 5 (73 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Getting ready for your Commercial Driver's License (CDL) combination vehicles endorsement has never been easier with our Georgia combination CDL practice test. Our comprehensive test is designed to prepare you thoroughly for all the challenges you might face on the road. This test includes a variety of multiple-choice questions covering essential areas such as coupling and uncoupling, pre-trip inspections, driving techniques, backing and maneuvering, and air brake systems. The GA DMV practice test consists of 20 questions, and you'll need to get at least 16 correct answers to pass. This rigorous preparation ensures you understand crucial topics, like the increased stopping distances required for combination vehicles due to their greater weight. Recognizing these stopping distances is vital for maintaining safety, ensuring you can handle the unique challenges presented by these larger, heavier vehicles. To enhance your learning experience, many of the sample questions on our Georgia driving test practice come with visual aids such as images. These visual aids are particularly beneficial for visual learners, helping you grasp complex concepts more quickly and effectively. By seeing what you're learning about, you can better understand how to apply this knowledge in real-life situations. Our Georgia CDL combination test is accessible online, allowing you to study wherever you are, whether on your mobile, desktop, or through mobile apps. This accessibility ensures that you can fit your studying into your busy schedule, making it convenient to prepare for your test at any time. One of the great features of our combination CDL test is that it is not timed. You can take as much time as you need to work through each question, allowing you to fully understand each topic without the pressure of a ticking clock. This flexibility helps you build confidence and ensures you are thoroughly prepared for the actual test. Prepare yourself with our GA permit practice test and gain the confidence you need to pass. By focusing on the key areas required for your CDL combination vehicles endorsement, our practice test will equip you with the knowledge and skills necessary for safe and effective driving. Take advantage of this valuable resource and get ready to succeed on your CDL combination test.
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Sample Georgia Combination Test Questions

Question 1

How do you supply air to a semitrailer’s air tanks?

  1. A. Connect the blue service line to the red supply line
  2. B. Pull out the trailer air supply control
  3. C. Apply the trailer hand valve fully
  4. D. Push in the trailer air supply control

Correct answer: D. – Push in the trailer air supply control

Push in the red, eight-sided trailer air supply control to send air through the emergency or supply line. That line fills the trailer’s air tanks and allows the trailer spring brakes to release. Georgia’s CDL study guide explains that pulling the control out shuts off the supply and applies the trailer emergency brakes.

Source: Georgia Commercial Driver’s Study Guide — § 6.2.3, “Trailer Air Supply Control”

Question 2

If a trailer begins skidding because its wheels locked during braking, what should you do?

  1. A. Accelerate until the trailer straightens
  2. B. Steer sharply away from the skid
  3. C. Apply the trailer hand valve
  4. D. Release the brakes to restore traction

Correct answer: D. – Release the brakes to restore traction

Locked trailer wheels can cause the trailer to swing outward into a trailer jackknife. Release the brakes to allow the wheels to regain traction. Do not apply the trailer hand valve in an attempt to straighten the combination because braking the trailer wheels caused the skid. Once traction returns, the trailer should begin following the tractor again.

Source: Georgia Commercial Driver’s Study Guide — § 6.1.5, “Prevent Trailer Skids”

Question 3

Which procedure correctly tests a semitrailer’s service brakes?

  1. A. At normal air pressure, move forward slowly and apply the hand control
  2. B. Accelerate rapidly and release the brake pedal
  3. C. Make a sharp turn while applying the tractor brakes
  4. D. Remain parked and inspect only the mirrors

Correct answer: A. – At normal air pressure, move forward slowly and apply the hand control

Build normal air pressure, release the parking brakes, and move the combination forward slowly. Apply the trailer brakes with the hand control, if the vehicle has one, and verify that you feel them engage. The hand control is appropriate for this test, but the foot pedal should control the trailer service brakes during normal driving.

Source: Georgia Commercial Driver’s Study Guide — § 6.5.2, “Combination Vehicle Brake Check—Test Trailer Service Brakes”

Question 4

After coupling and slightly raising the landing gear, how should you test the tractor-semitrailer connection?

  1. A. Pull forward with a sharp jerk
  2. B. Rock the trailer sideways against the landing gear
  3. C. Pull gently forward in low gear while the trailer brakes remain locked
  4. D. Release all brakes and depend only on the visual inspection

Correct answer: C. – Pull gently forward in low gear while the trailer brakes remain locked

Raise the landing gear slightly and pull the tractor gently forward while the trailer brakes remain locked. This verifies that the kingpin is secured in the fifth wheel. Georgia’s coupling procedure also requires a visual inspection for closed jaws around the kingpin shank, no space between the fifth-wheel plates, and a secured locking lever and safety latch.

Source: Georgia Commercial Driver’s Study Guide — § 6.4.1, “Coupling Tractor-Semitrailers—Check Connection for Security; Inspect Coupling”

Question 5

Before backing the tractor beneath a semitrailer during coupling, which condition must be verified?

  1. A. The tractor protection valve is in the normal position
  2. B. All air brakes are released
  3. C. The trailer landing gear is fully raised
  4. D. The trailer brakes are locked

Correct answer: D. – The trailer brakes are locked

After supplying air and confirming that the trailer brakes work, pull out the trailer air supply control to lock those brakes. Then use the lowest reverse gear and back slowly beneath the trailer. The landing gear remains down during coupling and is raised only after the coupling has been tested and visually inspected.

Source: Georgia Commercial Driver’s Study Guide — § 6.4.1, “Coupling Tractor-Semitrailers—Lock Trailer Brakes; Back Under Trailer”

Question 6

Which statement about braking a combination vehicle is correct?

  1. A. The brakes and suspension work best when the vehicle is lightly loaded
  2. B. A lightly loaded combination requires more braking force than a heavy one
  3. C. A bobtail tractor may take longer to stop than a fully loaded tractor-semitrailer
  4. D. A fully loaded trailer’s wheels lock more easily than an empty trailer’s wheels

Correct answer: C. – A bobtail tractor may take longer to stop than a fully loaded tractor-semitrailer

Tests cited in Georgia’s CDL study guide show that a bobtail tractor can be difficult to stop smoothly and may require more distance than a tractor-semitrailer loaded to maximum gross weight. Empty or lightly loaded combinations also have less traction, making wheel lockup easier. Drivers should leave ample following distance and begin braking early.

Source: Georgia Commercial Driver’s Study Guide — § 6.1.3, “Brake Early”

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