Georgia CDL Combination Practice Test (GA) 2

5 out of 5 (64 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Prepare for your Commercial Driver's License (CDL) with our GA CDL combination test, tailored to enhance your readiness for the permit test. This CDL combination practice test includes 20 multiple-choice questions that cover crucial topics such as inspection procedures, safe driving practices, and air brake systems. To pass, you need to answer at least 16 questions correctly, ensuring a comprehensive understanding of these essential areas. One key aspect of our Georgia permit practice test is its focus on real-world scenarios, such as the risks associated with jackknifing. This dangerous situation, where the trailer swings out of alignment with the tractor, is a critical hazard for combination vehicle drivers. By learning to avoid jackknifing through smooth braking and careful handling, you'll be better prepared for safe driving. Our practice permit test is not only thorough but also completely free. Unlike many paid options, our test offers the same extensive features and study opportunities, providing excellent value without any cost. The Georgia combination CDL practice test uses a multiple-choice format, mirroring the actual written permit test. This familiar format helps you practice the process of eliminating incorrect answers to identify the correct one, a crucial skill for the actual test. GA's diverse driving conditions, from the bustling streets of Atlanta to the mountainous terrain of North Georgia and the coastal roads near Savannah, require a well-rounded preparation. Our CDL combination practice test reflects this variety, ensuring you are well-prepared for any driving situation you might encounter. The extensive pool of questions in our Georgia DMV practice test covers a wide range of topics, offering ample learning opportunities to thoroughly prepare for the DMV written test. By practicing with our GA combination CDL practice test, you gain confidence and knowledge, ensuring you are ready to tackle the permit test and drive safely on Georgia's varied roads. Start your preparation today and take the first step towards obtaining your CDL with our comprehensive and free Georgia driving test practice tool.
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Sample Georgia Combination Test Questions

Question 1

Why should cargo in a combination vehicle be kept as low as possible?

  1. A. It lowers the center of gravity and reduces rollover risk
  2. B. It makes every part of the load easier to reach
  3. C. It guarantees better fuel economy
  4. D. It prevents all uneven tire wear

Correct answer: A. – It lowers the center of gravity and reduces rollover risk

Stacking cargo higher raises the combination vehicle’s center of gravity and makes the vehicle easier to overturn. Keeping the load close to the ground improves stability and reduces rollover risk. The cargo should also be centered and distributed across the rig because a load concentrated on one side can make the trailer lean and increase the chance of rollover.

Source: Georgia Commercial Driver’s Study Guide — § 6.1.1, “Rollover Risks”

Question 2

Which procedure correctly tests the trailer emergency brakes?

  1. A. Open both shut-off valves at the rear of the last trailer
  2. B. Pull out the trailer air supply control, then pull gently against the trailer
  3. C. With the engine off, repeatedly press the brake pedal without charging the trailer
  4. D. Release every parking brake and move forward at normal speed

Correct answer: B. – Pull out the trailer air supply control, then pull gently against the trailer

First charge the trailer air system and verify that the trailer can roll freely. Stop, pull out the trailer air supply control or place it in the emergency position, and gently pull forward with the tractor. Resistance from the trailer confirms that its emergency brakes have applied. This test should be performed gently to avoid damaging the coupling.

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

Question 3

Which procedure is used to test the tractor protection valve?

  1. A. Open both air-line shut-off valves at the rear of the last trailer
  2. B. Release the parking brakes and pull the combination forward
  3. C. Charge the system, shut off the engine, and repeatedly press and release the brake pedal
  4. D. Move the trailer air supply control to emergency without lowering system pressure

Correct answer: C. – Charge the system, shut off the engine, and repeatedly press and release the brake pedal

Charge the trailer air brake system and push in the trailer air supply control. Shut off the engine, then repeatedly press and release the brake pedal to reduce tank pressure. The trailer air supply control should pop out or move to emergency at the pressure specified by the manufacturer, usually between 20 and 45 psi.

Source: Georgia Commercial Driver’s Study Guide — § 6.5.2, “Combination Vehicle Brake Check—Test Tractor Protection Valve”

Question 4

Why must the fifth-wheel plate be lubricated as required?

  1. A. To prevent steering problems caused by excessive friction
  2. B. To reduce tread wear on the trailer tires
  3. C. To guarantee improved fuel mileage
  4. D. To release the trailer brakes during coupling

Correct answer: A. – To prevent steering problems caused by excessive friction

The upper and lower fifth-wheel surfaces move against each other as the combination turns. Adequate grease limits friction between the tractor and trailer. Without the required lubrication, that friction can interfere with smooth pivoting and cause steering problems. The fifth-wheel plate should be checked for sufficient grease during the coupling inspection.

Source: Georgia Commercial Driver’s Study Guide — § 6.4.1, “Coupling Tractor-Semitrailers—Inspect Fifth Wheel”

Question 5

Where should you look, and what should you see, when visually checking the fifth-wheel coupling?

  1. A. Into the rear of the fifth wheel, where the jaws should surround the kingpin shank
  2. B. Under the kingpin head, where the jaws should remain open
  3. C. Only in the mirrors, where the landing gear should appear raised
  4. D. At the air lines only, because a tug test replaces the visual check

Correct answer: A. – Into the rear of the fifth wheel, where the jaws should surround the kingpin shank

Look into the back of the fifth wheel, using a flashlight if necessary, and verify that the jaws are closed around the kingpin shank. There should be no visible space between the upper and lower fifth-wheel plates. Also confirm that the locking lever is in the locked position and that the safety latch is properly engaged.

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

Question 6

If a curved backing path is unavoidable, you should set up to back toward the driver’s side when possible.

  1. A. TRUE
  2. B. FALSE

Correct answer: A. – TRUE

The statement is true. A straight backing path is preferred, but Georgia’s CDL study guide directs drivers to back toward the driver’s side when a curved path is necessary because visibility is better. Inspect the path first, use both mirrors frequently, back slowly, and make pull-ups or additional inspections whenever needed.

Source: Georgia Commercial Driver’s Study Guide — § 6.1, “Backing with a Trailer”

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