North Carolina Tanker Endorsement Practice Test (NC) 2

4.9 out of 5 (120 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Welcome to our NC CDL tanker endorsement test page, where you can get the preparation you need for a successful career on the road. This 20-question NC practice permit test is designed to cover all the essential aspects of handling tanker vehicles. You'll encounter questions on managing liquid surge, maintaining weight stability, understanding critical safety procedures, and adhering to regulatory requirements. These multiple-choice questions reflect the format you'll face in the real test, making this North Carolina driving test practice an excellent tool for your preparation. NC is known for its busy trucking routes, particularly along the I-85 and I-95 corridors, making it a hub for commercial drivers. Whether you're hauling goods through the Research Triangle or navigating the scenic routes of the Blue Ridge Parkway, having a tanker endorsement is a valuable asset. This permit practice test ensures you're well-equipped to handle the unique challenges of driving a tanker vehicle, such as the high center of gravity that makes these vehicles more prone to tipping. The NC DMV practice test doesn't just stop at helping you pass. It also prepares you for real-world scenarios, such as effectively responding to spills and leaks, and maintaining control of your vehicle during liquid shifts. Emergency preparedness is crucial, and this North Carolina CDL tanker test provides the knowledge you need to stay safe on the job. After completing the NC CDL tanker endorsement test, you'll have the opportunity to review your answers. This review includes hints and explanations for any questions you missed, helping you understand the material better. The test can be taken multiple times, allowing you to get comfortable with the questions before moving on to the next CDL practice test. Ideal for those holding a commercial learner's permit, this tanker endorsement test covers all necessary aspects of tanker vehicle operations. With NC's booming commercial driving industry, particularly in areas like Charlotte and Raleigh, passing this test is a critical step in advancing your driving career. Get ready to master the skills needed for your tanker endorsement and take the first step toward your next big driving milestone.
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Sample North Carolina Tanker Test Questions

Question 1

As you complete a normal stop in a tank vehicle, how should you apply the brakes to help control liquid surge?

  1. A Release the brakes just before the vehicle stops
  2. B Maintain steady pressure and do not release the brakes too early
  3. C Pump the brakes repeatedly
  4. D Apply the brakes abruptly at the end of the stop

Correct answer: B – Maintain steady pressure and do not release the brakes too early

North Carolina’s CDL manual directs tank-vehicle drivers to maintain steady brake pressure and avoid releasing the brakes too early while completing a stop. Liquid in a partly filled tank can move back and forth, pushing the vehicle as the wave reaches the ends of the tank. Smooth braking helps manage that movement; abrupt braking or pumping the brakes is not the normal method for controlling surge.

Source: North Carolina Commercial Driver’s License Manual — § 8.2.2, “Danger of Surge”; § 8.3.2, “Controlling Surge”

Question 2

During a tank-vehicle inspection, what condition should you verify for the manhole covers?

  1. A They are fastened only with bolts
  2. B They are locked with separate padlocks
  3. C They have gaskets and close correctly
  4. D They display current paint and labels

Correct answer: C – They have gaskets and close correctly

Verify that the manhole covers have gaskets and close correctly. The tank-vehicle inspection procedure also directs drivers to keep the vents clear so they can operate properly. A cover does not pass this check merely because it is bolted, locked, painted, or labeled; the relevant inspection points are the gasket and proper closure.

Source: North Carolina Commercial Driver’s License Manual — § 8.1.1, “Leaks”

Question 3

Which driving practice helps a tank-vehicle driver control liquid surge?

  1. A Accelerate sharply before entering curves
  2. B Brake harder than usual during every stop
  3. C Begin braking well before a stop and allow extra following distance
  4. D Accept that surge cannot be managed by driving technique

Correct answer: C – Begin braking well before a stop and allow extra following distance

Brake well in advance of a planned stop and increase your following distance. When completing the stop, maintain steady brake pressure and do not release the brakes too soon. These practices allow smoother speed changes while liquid is moving inside the tank. If a quick emergency stop is necessary, the manual directs drivers to use controlled or stab braking.

Source: North Carolina Commercial Driver’s License Manual — § 8.3.1, “Drive Smoothly”; § 8.3.2, “Controlling Surge”

Question 4

Which description identifies a smooth-bore liquid tank?

  1. A A tank divided into several separate compartments
  2. B A tank fitted with internal baffles
  3. C An unbaffled tank with nothing inside to slow liquid flow
  4. D A tank constructed with additional insulation

Correct answer: C – An unbaffled tank with nothing inside to slow liquid flow

A smooth-bore tank is another name for an unbaffled liquid tank. Because there is nothing inside to slow the liquid’s flow, forward-and-back surge can be especially strong. Drivers must operate these vehicles cautiously and smoothly, particularly when starting and stopping. Compartments, baffles, and insulation are different tank features and do not define a smooth-bore tank.

Source: North Carolina Commercial Driver’s License Manual — § 8.2.5, “Un-baffled Tanks”

Question 5

What must be true of a tank vehicle’s manhole covers before the vehicle is driven?

  1. A They may remain open when the weather is dry
  2. B They may remain open during operation on private property
  3. C They may remain open if secured with straps
  4. D They must be closed

Correct answer: D – They must be closed

Before a tank vehicle is driven, its manhole covers must be closed. The manual gives the same instruction for tank valves: never drive with them open. This is part of checking the vehicle before movement. Dry weather, operation on private property, or an improvised strap does not make an open manhole cover acceptable.

Source: North Carolina Commercial Driver’s License Manual — § 8.1.2, “Check Special Purpose Equipment”

Question 6

A Class A or B CMV carries liquid or gas in attached tanks with an aggregate rated capacity of at least 1,000 gallons. Each qualifying tank must have an individual rated capacity greater than how many gallons for the tank-vehicle endorsement requirement to apply?

  1. A 50 gallons
  2. B 75 gallons
  3. C 100 gallons
  4. D 119 gallons

Correct answer: D – 119 gallons

The N endorsement applies when attached tanks designed to transport liquid or gas each have a rated capacity greater than 119 gallons and their aggregate rated capacity is at least 1,000 gallons. North Carolina uses this threshold in its CDL manual. Both the individual-capacity condition and the aggregate-capacity condition must be satisfied.

Source: North Carolina Commercial Driver’s License Manual — § 8, “Tank Vehicles”, 49 CFR § 383.5 — Definitions, 49 CFR § 383.93(b)(3) — Endorsements

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