West Virginia CDL Combination Practice Test (WV) 2

4.8 out of 5 (36 votes)
80% Passing score
20 Questions
4 Mistakes allowed
As a West Virginian, you know our state's roads can be as diverse as its landscapes. From the winding, narrow mountain passes in the Alleghenies to the broad, bustling highways near Charleston, each route presents its own unique challenges. That's why it's crucial to prepare thoroughly with a WV combination CDL practice test designed to reflect our local driving conditions and regulations. This West Virginia learners practice test is more than just a set of questions-it's a tool crafted to help you become a safe and confident driver on our state's roads. With 20 multiple-choice questions that delve into key topics like inspection procedures, safe driving practices, and air brake systems, this test is a comprehensive resource. You'll also tackle crucial issues like avoiding jackknifing, which is especially important on our steep grades and winding roads. Proper braking techniques and cautious handling are skills every WV driver must master to navigate our varied terrain safely. You won't have to rush through this permit practice test. It's designed with flexibility in mind, allowing you to take your time and really absorb the material. Since the test isn't timed, you can focus on understanding each question thoroughly, which is especially important when considering the specific driving laws and regulations in WV. This way, you're not just memorizing answers but genuinely learning how to drive safely under the conditions you'll face every day. The West Virginia DMV practice test is repeatable as many times as needed. Whether you're taking it once to gauge your readiness or multiple times to ensure you've covered every angle, the unlimited attempts feature means you can progress at your own pace. Each attempt at the WV CDL combination test brings you one step closer to mastering the knowledge and skills necessary to drive safely and responsibly in our state. With this solid preparation, you'll be ready to tackle the official test with confidence, knowing you've prepared in a way that aligns with the specific demands of driving in WV.
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Sample West Virginia Combination Test Questions

Question 1

What is the main safety benefit of using a helper while backing a trailer?

  1. A The helper can watch blind areas and signal the driver about hazards
  2. B The helper can make the tractor move faster
  3. C The helper can apply the trailer brakes from outside
  4. D The helper can adjust mirrors while the vehicle is moving

Correct answer: A – The helper can watch blind areas and signal the driver about hazards

A helper can observe blind spots that the driver cannot see while backing. West Virginia's manual instructs the helper to stand near the rear where the driver can see the helper. Before moving, both people should agree on understandable hand signals, including a signal to stop.

Source: West Virginia Commercial Driver’s License Manual — § 2.2.4, “Backing Safely”

Question 2

What are the two functions of a trailer's emergency air line?

  1. A Improve fuel economy and cool the trailer brakes
  2. B Operate the brake lights and ABS warning lamp
  3. C Supply the trailer air tanks and control the emergency brakes
  4. D Raise the landing gear and release the fifth wheel

Correct answer: C – Supply the trailer air tanks and control the emergency brakes

The emergency, or supply, line delivers air to the trailer's air tanks and controls its emergency brakes. A loss of pressure in this line causes the trailer emergency brakes to apply. The pressure loss also causes the tractor protection valve to close, limiting further air loss from the tractor.

Source: West Virginia Commercial Driver’s License Manual — § 6.2.4, “Trailer Air-lines”

Question 3

What may you find on a converter dolly or trailer built before 1975?

  1. A It may not have spring brakes
  2. B It must have a modern ABS system
  3. C It can be operated without an emergency air line
  4. D It always has stronger parking brakes than a newer trailer

Correct answer: A – It may not have spring brakes

Some converter dollies and trailers built before 1975 do not have spring brakes. These units use emergency brakes powered by air stored in the trailer air tank. Their emergency brakes apply when pressure is lost from the emergency line, but braking force remains available only while air stays in the tank.

Source: West Virginia Commercial Driver’s License Manual — § 6.2.8, “Trailer Service, Parking and Emergency Brakes”

Question 4

Which visible feature usually identifies ABS on an air-braked trailer?

  1. A A red lamp on the trailer's right side
  2. B A blue lamp above the rear doors
  3. C A yellow ABS malfunction lamp on the trailer's left side
  4. D A green lamp next to the glad hands

Correct answer: C – A yellow ABS malfunction lamp on the trailer's left side

An air-braked trailer with ABS normally has a yellow malfunction lamp on its left side. Federal equipment standards require ABS on covered trailers and converter dollies manufactured on or after March 1, 1998, along with an external yellow indicator. On an older unit, the driver may need to look underneath for an electronic control unit and wheel-speed sensor wiring.

Source: West Virginia Commercial Driver’s License Manual — § 6.3.1, “Trailers Required to Have ABS”, 49 CFR § 571.121 S5.2.3.1, S5.2.3.3 — Standard No. 121; Air brake systems

Question 5

How should you test the trailer service brakes when a trailer hand control is available?

  1. A Move forward slowly and apply the trailer brakes with the hand control
  2. B Pull out the trailer air-supply control and tug against the trailer
  3. C Turn off the engine and repeatedly press the brake pedal
  4. D Release all brakes and coast without applying a control

Correct answer: A – Move forward slowly and apply the trailer brakes with the hand control

With normal air pressure, release the parking brakes and move the combination forward slowly. Apply the trailer brakes using the hand control, if equipped, and confirm that you feel them engage. This verifies that the trailer service brakes are connected and working; during normal driving, use the foot pedal to apply the service brakes at all wheels.

Source: West Virginia Commercial Driver’s License Manual — § 6.5.2, “Combination Vehicle Brake Check”

Question 6

During a correct fifth-wheel coupling, the locking jaws must close around which part of the kingpin?

  1. A The head
  2. B The polished upper section
  3. C The shank
  4. D The mounting base

Correct answer: C – The shank

The fifth-wheel jaws must close around the shank of the kingpin. The West Virginia manual directs the driver to inspect the connection from behind the fifth wheel and verify the jaw position, locking lever, and safety latch. If any part of the coupling is incorrect, the unit must not be driven until it is fixed.

Source: West Virginia Commercial Driver’s License Manual — § 6.4.1, “Coupling Tractor-Semitrailers,” Step 13, “Inspect Coupling”

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