Delaware CDL General Knowledge Practice Test (DE) 2

4.9 out of 5 (61 votes)
80% Passing score
20 Questions
4 Mistakes allowed
If you're preparing for your CDL in Delaware, this is the right place for you. Our Delaware CDL General Knowledge Practice Test 2 offers a comprehensive approach to help you master the essentials of commercial driving in 2026. With a set of 20 multiple-choice questions, our practice test simulates the real DMV exam experience, but quicker, ensuring you are not just prepared, but confident. Our Delaware CDL general knowledge test practice is meticulously designed to cover a broad spectrum of necessary knowledge. Expect questions that range from pre-trip vehicle inspection to communication with other road users, vehicle control under various conditions, and crucial safety measures like speed control and drug and alcohol awareness. This diversity in topics ensures that regardless of whether you're aiming for a Class A or Class B license, or adding endorsements, you're well-equipped with the general knowledge that's fundamental for all. We understand the importance of learning at your own pace and place. That's why our Delaware CDL practice test is accessible through multiple platforms - whether you're on a desktop at home or using a mobile device on the go. This flexibility ensures that your preparation is uninterrupted and convenient. Moreover, we recognize that driving regulations can differ significantly from one state to another. Therefore, this Delaware general knowledge CDL practice test is specifically tailored to fit the unique driving laws, road signs, and regulations of Delaware. This state-specific focus means that what you learn here is directly applicable to your Delaware CDL exam in 2026. In short, our Delaware DMV CDL general knowledge practice test is more than just a tool for exam preparation; it's a comprehensive learning experience designed to build your knowledge and confidence, ensuring you're not just ready for the test, but for the road ahead.
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Sample Delaware CDL Test Questions - General Knowledge

Question 1

Before entering an intersection, which condition must a driver verify?

  1. A There is enough space beyond the intersection for the entire vehicle
  2. B The light has just changed to green
  3. C Following traffic is moving at the same speed
  4. D The intersection can be cleared within two minutes

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

Delaware law prohibits entering an intersection unless sufficient space is available on the other side to accommodate the vehicle without obstructing other traffic or pedestrians. This requirement applies even when a traffic signal indicates that the driver may proceed. A commercial driver must account for the vehicle’s full length before entering.

Source: 21 Del. C. § 4130 – Vehicle obstructing traffic

Question 2

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

  1. A One
  2. B Two
  3. C Three
  4. D Four

Correct answer: C – Three

A CMV using reflective warning devices must carry three bidirectional emergency reflective triangles. The required emergency-equipment options may instead include the specified number of fusees or liquid-burning flares where those flame-producing devices are permitted. Drivers should verify that the warning equipment is present and ready for use during the vehicle inspection.

Source: Delaware Commercial Driver’s Manual — § 2.1.3, “Check Emergency Equipment”, 49 CFR § 393.95(f) – Emergency equipment on all power units

Question 3

Blocking may be used to prevent cargo from sliding during transportation.

  1. A True
  2. B False

Correct answer: A – True

Blocking is fitted against the front, rear, or sides of cargo to keep the load from sliding. The blocking must be properly secured to the cargo deck so that it does not move with the freight. Bracing may also be used to prevent cargo movement.

Source: Delaware Commercial Driver’s Manual — § 3.3.1, “Blocking and Bracing”

Question 4

An orange diamond sign displaying a worker symbol warns that:

This sign warns drivers that _____________.
  1. A The sign applies only to road crews
  2. B Workers may be in or near the roadway ahead
  3. C The road is necessarily closed
  4. D A mandatory detour begins immediately

Correct answer: B – Workers may be in or near the roadway ahead

In Delaware, the worker-symbol sign warns road users that workers may be present in or close to the roadway. Drivers should be prepared for the work-zone condition shown by the sign and follow any additional signs, channelizing devices, or flagger directions. Road-closure and detour instructions are displayed with separate traffic-control devices.

Source: Delaware Manual on Uniform Traffic Control Devices — Part 6, “Workers Sign (W21-1)”

Question 5

During an emergency move off the roadway, avoid braking until your speed has fallen to approximately:

  1. A 10 mph
  2. B 20 mph
  3. C 30 mph
  4. D 40 mph

Correct answer: B – 20 mph

When forced off the roadway, keep the vehicle under control and avoid braking until speed decreases to about 20 mph. After reaching that speed, brake very gently. If possible, keep one set of wheels on the pavement to help maintain control until the vehicle has slowed.

Source: Delaware Commercial Driver’s Manual — § 2.17.1, “Leaving the Road”

Question 6

Approximately how long does a typical tractor-trailer need to clear a double railroad track?

  1. A About 8 seconds
  2. B About 12 seconds
  3. C More than 15 seconds
  4. D Less than 5 seconds

Correct answer: C – More than 15 seconds

A typical tractor-trailer requires more than 15 seconds to clear a double track. Before entering the crossing, the driver must have enough time and space to move the entire vehicle across without stopping. The driver must also account for traffic signals or congestion beyond the tracks.

Source: Delaware Commercial Driver’s Manual — § 2.15.3, “Driving Procedures”

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