Kentucky General Knowledge CDL Prep Test (KY) 4

4.8 out of 5 (63 votes)
80% Passing score
20 Questions
4 Mistakes allowed
As Kentuckians, we understand the value of hard work and dedication, especially when it comes to pursuing a career. If you're gearing up to obtain your Commercial Driver's License (CDL), you're in the right place. Our fourth Kentucky general knowledge CDL practice test is a crucial step in preparing you for your CDL exam in 2026! This test comprises 20 permit test questions, carefully crafted to mirror those you'll encounter on the actual exam. To pass, you'll need to correctly answer at least 16 questions. Whether you're a seasoned pro refreshing your knowledge or a newcomer to the world of commercial driving, this CDL practice test offers a comprehensive overview of what you need to know in 2026. One of the unique aspects of our KY general knowledge practice test is the inclusion of real-life scenarios. These CDL test questions aren't just theoretical; they're based on situations you're likely to encounter on the road. This approach not only tests your knowledge but also helps you apply what you've learned to practical situations. Accessibility is key in our approach. We understand that our learners have different needs and schedules, which is why our KY DMV practice tests are available online across various platforms. Whether you're on a desktop at home or using a mobile app on the go, you can access our CDL practice tests easily and efficiently. Visual learners, take note: our Kentucky general knowledge CDL practice tests are designed with you in mind! We incorporate visual learning aids, including images of road signs and traffic scenarios, to help you better understand and remember the material. Remember, consistency is key. The same set of DMV written test questions will appear every time you take this particular practice test, allowing you to track your progress and focus on areas that need improvement. So, take your time, review your answers, and use this KY CDL practice test as a tool to guide you towards your goal of passing the CDL written test in 2026!
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Sample Kentucky CDL Test Questions - General Knowledge

Question 1

Which situations can require a commercial vehicle to use a lower gear?

  1. A Before starting down a hill
  2. B Before entering a curve
  3. C While climbing a grade when its steepness, length, or the load requires it
  4. D All of these

Correct answer: D – All of these

Downshift before starting down a hill and before entering a curve rather than waiting until the vehicle is already in the demanding section. On an upgrade, a steeper or longer grade and a heavier load may require lower gears. Use the tachometer or speedometer to shift at the proper engine or road speed.

Source: Kentucky Commercial Driver’s License Manual — § 2.3.1, “Manual Transmissions” and § 2.16, “Driving in Mountains”

Question 2

A yellow diamond-shaped sign displaying a truck symbol warns that:

This sign warns drivers to _____________.
  1. A A railroad crossing used only by freight trains is ahead
  2. B Only commercial vehicles may use the roadway ahead
  3. C Passenger vehicles must pass all trucks on the left
  4. D Trucks may unexpectedly enter or cross the roadway

Correct answer: D – Trucks may unexpectedly enter or cross the roadway

The Truck warning sign alerts road users to locations where trucks may unexpectedly enter or cross the roadway. Drivers should be prepared for large vehicles entering from nearby access points. The sign does not reserve the road for trucks or establish a special passing requirement.

Source: Manual on Uniform Traffic Control Devices, 11th ed. — § 2C.54, “Vehicular Traffic Warning Signs”

Question 3

A Kentucky CDL driver carries an unblocked, 4-foot article weighing 1,500 pounds. What is the minimum number of tie-downs required?

  1. A 1
  2. B 2
  3. C 3
  4. D 4

Correct answer: B – 2

Federal cargo-securement regulations require two tie-downs for an unblocked article that is 5 feet or shorter and weighs more than 1,100 pounds. One tie-down is permitted only when an article of that length weighs 1,100 pounds or less. Because this article weighs 1,500 pounds, two are required.

Source: 49 CFR § 393.110(b)(1)-(2) — Additional requirements for determining the minimum number of tiedowns

Question 4

Which hazardous-material restriction applies to a bus carrying passengers?

  1. A Division 2.3 poisonous gas may not be carried in any amount
  2. B Class 1 explosives may not be carried in passenger space, except small-arms ammunition
  3. C Allowed non-Class 1 hazardous materials may not exceed 99 pounds per class or 496 pounds combined
  4. D All of these answers are correct

Correct answer: D – All of these answers are correct

Federal hazardous-material rules prohibit Division 2.3 poisonous gas on a bus transporting passengers. Class 1 explosives, except small-arms ammunition, cannot be carried in passenger space. Other permitted hazardous materials generally may not exceed 99 pounds of any one class or 496 pounds in the aggregate, making all three statements correct.

Source: Kentucky Commercial Driver’s License Manual — § 4.2.2, “Forbidden Hazardous Materials”, 49 CFR § 177.870(c), (e)-(f) — Regulations for passenger carrying vehicles

Question 5

If reflective triangles are used as a power unit’s required warning devices, how many must be carried?

  1. A 2
  2. B 4
  3. C 1
  4. D 3

Correct answer: D – 3

A permitted stopped-vehicle warning-device option consists of three bidirectional reflective triangles meeting the applicable safety standard. At least six fusees are another option when flame-producing devices are permitted. If the vehicle uses reflective triangles, it must carry three.

Source: Kentucky Commercial Driver’s License Manual — § 2.1.2, “What to Look For—Emergency Equipment”, 49 CFR § 393.95(f)-(g) — Emergency equipment on all power units

Question 6

Before backing with a helper, which hand signal must the driver and helper clearly agree upon?

  1. A Reduce speed
  2. B Pull forward
  3. C Continue straight back
  4. D Stop

Correct answer: D – Stop

The Kentucky CDL manual directs the driver and helper to establish understandable signals before backing, including a signal for “stop.” The helper should remain near the rear where the driver can see them. A clear stop signal allows the driver to halt immediately if clearance is lost or another hazard develops.

Source: Kentucky Commercial Driver’s License Manual — § 2.2.2, “Backing Safely—Use a Helper”

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