Rhode Island CDL Combination Practice Test (RI) 2

5 out of 5 (36 votes)
80% Passing score
20 Questions
4 Mistakes allowed
As a Rhode Islander, preparing for your Commercial Driver's License (CDL) test requires specialized resources that reflect our unique driving conditions. Our RI combination CDL practice test is designed to help you master the essential skills and knowledge needed to pass the state's rigorous permit test. With 20 multiple-choice questions covering inspection procedures, safe driving practices, air brake systems, and more, this CDL combination practice test offers a comprehensive review of the critical topics you need to know. Driving in Rhode Island presents its own set of challenges. Whether navigating the bustling streets of Providence, dealing with the coastal fog in Newport, or driving through the hilly terrains in the western part of the state, understanding local driving conditions is crucial. Our RI CDL combination test includes state-specific information, ensuring you're well-prepared for the diverse road conditions you'll encounter. The Rhode Island practice permit test is crafted to closely mirror the real DMV permit test experience. While the DMV restricts the publication of actual test questions and answers, our combination vehicle test is written by professional driving instructors with decades of combined teaching experience. These experts have helped thousands of drivers obtain their licenses, and their expertise ensures that our questions cover identical topics and are designed with comparable phrasing to the actual test. One of the critical areas covered in the RI combination CDL practice test is the risk of jackknifing, where the trailer swings out of alignment with the tractor. Learning to avoid this dangerous situation through smooth braking and careful handling is vital for safe driving. By practicing with our DMV practice test, you'll gain confidence in handling such scenarios. Our Rhode Island driving test practice is not just about passing the test but ensuring you understand the key concepts that will keep you safe on the road. With the need to answer at least 16 out of 20 questions correctly to pass, this RI CDL combination test is a valuable tool in your preparation journey. By engaging with our CDL combination practice test, you'll be well-equipped to face the permit test and drive safely across Rhode Island's diverse landscapes.
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Sample Rhode Island Combination Test Questions

Question 1

Which procedure checks whether air reaches the rear of every trailer in a double or triple combination?

  1. A Open the rear emergency valve, close it, then open the pressurized service valve and listen for air
  2. B Apply only the tractor parking brake and watch the gauges
  3. C Accelerate slowly while leaving all rear valves closed
  4. D Inspect the trailers only through the mirrors

Correct answer: A – Open the rear emergency valve, close it, then open the pressurized service valve and listen for air

After securing the vehicle and charging the system, open the emergency-line shut-off valve at the rear of the last trailer and listen for escaping air. Close that valve, pressurize the service line, and open its rear valve. Air escaping from both lines verifies that air reaches the back of the entire combination; close both valves after testing.

Source: Commercial Driver License Manual — § 7.4.1, “Additional Air Brake Checks”.

Question 2

You should apply the trailer hand valve to pull a jackknifing trailer back into line. True or false?

  1. A True
  2. B False

Correct answer: B – False

The statement is false. When a trailer skid begins, release the brakes to let the trailer wheels regain traction. Applying the trailer hand valve is the wrong response because trailer-wheel lockup caused the skid, and additional trailer braking can make the jackknife worse rather than straighten the combination.

Source: Commercial Driver License Manual — § 6.1.5, “Prevent Trailer Skids”.

Question 3

The manual’s chart shows the 3-axle, 27-foot tractor-semitrailer as having less rearward amplification than the 5-axle, 45-foot tractor-semitrailer. True or false?

  1. A True
  2. B False

Correct answer: B – False

The statement is false. In the Rhode Island CDL manual’s chart, the 3-axle, 27-foot tractor-semitrailer has greater rearward amplification than the 5-axle, 45-foot unit. Greater rearward amplification increases the rollover response at the rear of a combination during a quick lane change, which is why trailer combinations must be steered gently and smoothly.

Source: Commercial Driver License Manual — § 6.1.2, “Steer Gently,” Figure 6.1.

Question 4

A fifth-wheel coupling inspection should include looking into the gap to verify that the locking jaws or lever are secured around the kingpin. True or false?

  1. A True
  2. B False

Correct answer: A – True

The statement is true. Rhode Island’s modernized CDL inspection material requires the driver to look into the fifth-wheel gap and verify that the locking jaws or lever are fully secured around the kingpin. The inspection also includes checking for play, confirming that the release arm is engaged, and ensuring the safety latch or lock is in place when equipped.

Source: Commercial Driver License Manual – Modernized Version — § 11M.6.1, “Locking and Safety Devices”.

Question 5

How should you check whether the trailer emergency brakes are holding?

  1. A Open both rear shut-off valves and leave them open
  2. B Pull out the trailer air-supply control and gently pull against the trailer
  3. C With the engine off, repeatedly press the foot brake
  4. D Release every parking control and roll forward freely

Correct answer: B – Pull out the trailer air-supply control and gently pull against the trailer

First charge the trailer air-brake system and confirm that the trailer can roll freely. Stop, pull out the trailer air-supply control or place the control in the emergency position, and then pull gently with the tractor. Resistance from the trailer confirms that the trailer emergency brakes have applied and are holding.

Source: Commercial Driver License Manual — § 6.5.2, “Combination Vehicle Brake Check,” “Test Trailer Emergency Brakes”.

Question 6

With the engine off, parking brakes released, and service brakes not applied, a combination vehicle’s air-pressure loss should be:

  1. A Less than 1 psi in one minute
  2. B Less than 2 psi in one minute
  3. C Less than 3 psi in one minute
  4. D Less than 4 psi in one minute

Correct answer: C – Less than 3 psi in one minute

For this static leakage check, the Rhode Island CDL manual states that a combination vehicle should lose less than 3 psi in one minute. A single vehicle should lose less than 2 psi in the same period. This is different from the applied-brake leakage check, which uses other limits while the foot brake is held down.

Source: Commercial Driver License Manual — § 5.3.3, “Step 7 Final Air Brake Check”.

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