Pennsylvania General Knowledge CDL Prep Test (PA) 4

5 out of 5 (64 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Are you ready to take the next step in your commercial driving career in Pennsylvania? Look no further than our Pennsylvania General Knowledge CDL Prep Test - the fourth in our series of comprehensive CDL permit practice tests. Designed to reflect the latest standards and regulations, this test is a must-have tool for anyone aiming to excel in the PA CDL permit test in 2026. This 20-question permit practice test is crafted to challenge and enhance your understanding of the essentials of commercial driving. To pass, you'll need to correctly answer at least 16 questions, ensuring you're well-prepared for the real thing. But here's the best part: each attempt at this permit practice test offers the same set of PA CDL permit test answers, allowing you to really hone in on areas where you need improvement. We understand that every learner has unique needs. That's why our PA permit practice test platform is not just a testing tool; it's a personalized learning experience. You have the flexibility to tailor your study sessions to suit your schedule and focus on areas that require extra attention. This customization ensures that every minute spent practicing is efficient and effective. Moreover, we recognize the power of visual learning. Our PA CDL practice tests are enriched with visual aids, including images of road signs and traffic scenarios. These aids are more than just supplements; they are powerful tools that help visual learners absorb and retain information more effectively. In an ever-evolving field like commercial driving, staying current is crucial. Rest assured, our Pennsylvania CDL prep test content is continuously updated to reflect the latest in industry standards and state regulations. With us, you're not just practicing; you're staying ahead of the curve. So, whether you're looking to reinforce your knowledge or sharpen your test-taking skills, our Pennsylvania General Knowledge CDL Prep Test is the perfect resource for 2026! Get ready to boost your confidence and step closer to achieving your CDL.
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Sample Pennsylvania CDL Test Questions - General Knowledge

Question 1

Before entering an intersection in Pennsylvania when traffic is backed up, what must be true?

  1. A There is enough space beyond the intersection for the entire vehicle
  2. B The signal was green when the vehicle began moving
  3. C The driver expects traffic to move within two minutes
  4. D The vehicle’s hazard flashers are operating

Correct answer: A – There is enough space beyond the intersection for the entire vehicle

State law prohibits entering an intersection, crosswalk, or railroad crossing unless sufficient space is available on the other side. The entire vehicle must be accommodated without obstructing vehicles, pedestrians, or trains. This requirement applies even when a traffic-control signal otherwise indicates that the driver may proceed.

Source: 75 Pa.C.S. § 3710 – Stopping at Intersection or Crossing to Prevent Obstruction

Question 2

While traveling at 40 mph in Pennsylvania, how should you signal before making a turn?

  1. A Continuously for at least the last 300 feet before the turn
  2. B Only as the vehicle begins turning
  3. C After entering the turn
  4. D Only if another road user is immediately nearby

Correct answer: A – Continuously for at least the last 300 feet before the turn

State law requires a turn signal to be given continuously for at least the last 300 feet before turning when traveling above 35 mph. At speeds below 35 mph, the required distance is at least 100 feet. The signal must be discontinued immediately after the turn or lane movement is completed.

Source: 75 Pa.C.S. § 3334(b), (d) – Turning Movements and Required Signals

Question 3

At 55 mph on dry pavement, about how long does a heavy vehicle with good brakes need to stop after the driver sees a hazard?

  1. A 4 seconds
  2. B 5 seconds
  3. C 6 seconds
  4. D 7 seconds

Correct answer: C – 6 seconds

The Pennsylvania CDL manual estimates a total stopping time of about six seconds at 55 mph under good conditions. This includes approximately three-quarters of a second for perception, three-quarters of a second for reaction, and about four and one-half seconds for braking. During that time, the vehicle travels roughly 450 feet.

Source: Pennsylvania Commercial Driver’s Manual — § 2.6.1, “Stopping Distance”.

Question 4

During Pennsylvania’s CDL vehicle inspection, how should you perform a typical hydraulic brake pressure check?

  1. A Release the parking brake and let the vehicle roll
  2. B Press the brake and accelerator pedals together
  3. C Pump the brake pedal three times, then hold firm pressure for five seconds
  4. D Apply the brakes repeatedly while driving at highway speed

Correct answer: C – Pump the brake pedal three times, then hold firm pressure for five seconds

With the transmission in park, identify the brake pedal’s normal height and check its pressure. A typical procedure is to pump the pedal three times and then hold it down for five seconds. After the initial application, the pedal should remain firm and should not continue moving downward. Follow the manufacturer’s procedure when it differs.

Source: Pennsylvania Commercial Driver’s Manual — § 10M.1.2, “Air Brake or Hydraulic Brake Check (Based on Type of Brake System).”

Question 5

Before beginning a long or steep downgrade, what should you do?

  1. A Wait until speed builds before downshifting
  2. B Select the proper low gear before starting down
  3. C Shift into neutral and control speed with the brakes
  4. D Remain in high gear and apply steady brake pressure

Correct answer: B – Select the proper low gear before starting down

Pennsylvania’s CDL manual directs drivers to select the proper low gear before starting down a grade. Trying to downshift after speed has increased may leave the transmission in neutral and eliminate engine braking. Modern trucks may need a lower gear going downhill than they would use to climb the same hill, depending on the vehicle.

Source: Pennsylvania Commercial Driver’s Manual — § 2.16.2, “Select the Right Gear Before Starting Down the Grade.”

Question 6

What is the first control action you should take when a tire fails while driving?

  1. A Grip the steering wheel firmly with both hands
  2. B Apply the brakes sharply
  3. C Make a quick turn toward the shoulder
  4. D Accelerate until the vehicle stops pulling

Correct answer: A – Grip the steering wheel firmly with both hands

A failed front tire may twist the steering wheel or pull the vehicle sharply, making a firm two-handed grip essential. Avoid hard braking because it can cause a loss of control. Unless a collision is imminent, allow the vehicle to slow before braking gently and pulling off the roadway.

Source: Pennsylvania Commercial Driver’s Manual — § 2.17.4, “Tire Failure.”

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