A delivery empties one compartment of a tanker divided by bulkheads. Why must the driver consider the load remaining in the other compartments?
Correct answer: Unloading can change the front-to-rear weight distribution
Loading and unloading separate compartments can change where the remaining weight is carried. The driver must avoid concentrating too much weight at the front or rear; a lower total weight alone does not establish good distribution.
Source: New Jersey CDL Manual, March 2025 cover; Section 8, July 2017 footer, printed 8-8-2, physical 102 > 8.2.3 Bulkheads ↗
Inside a liquid tank, baffles have holes through which cargo can flow. What is their handling purpose?
Correct answer: Help control forward-and-back liquid surge
Baffles restrict liquid movement while allowing flow through their openings. They help control longitudinal surge; their holes do not create sealed, independent compartments.
Source: New Jersey CDL Manual, March 2025 cover; Section 8, July 2017 footer, printed 8-8-2, physical 102 > 8.2.4 Baffled Tanks ↗
A driver expects a baffled liquid tank to resist forward-and-back surge. What must still be allowed for during a turn?
Correct answer: Side-to-side surge can still contribute to a rollover
Baffles do not eliminate lateral liquid movement. Side-to-side surge can still occur and can contribute to rollover, even when forward-and-back surge is reduced.
Source: New Jersey CDL Manual, March 2025 cover; Section 8, July 2017 footer, printed 8-8-2, physical 102 > 8.2.4 Baffled Tanks ↗
A driver changes to a partially filled smooth-bore liquid tanker. Why do starts and stops require particular care?
Correct answer: There are no internal baffles to slow the liquid's surge
An un-baffled, or smooth-bore, tank has no internal structures to slow liquid flow. Its forward-and-back surge can be strong, making careful starts and stops especially important.
Source: New Jersey CDL Manual, March 2025 cover; Section 8, July 2017 footer, printed 8-8-2, physical 102 > 8.2.5 Un-baffled Tanks ↗
A bulk-liquid loading plan leaves a specified empty space in the cargo tank, called outage. What is that space intended to accommodate?
Correct answer: Expansion of the liquid as it warms
Outage leaves room for thermal expansion. Filling a cargo tank completely would remove that room; outage is not a device for eliminating surge.
Source: New Jersey CDL Manual, March 2025 cover; Section 8, July 2017 footer, printed 8-8-2, physical 102 > 8.2.6 Outage ↗
A tank approved and prepared for a different liquid is being loaded for the next trip. Can the driver assume the previous product's outage allowance is suitable?
Correct answer: No; establish the outage requirement for the new liquid
Different liquids expand by different amounts. The driver must know the outage requirement for the actual product; tank identity or density alone does not establish that requirement.
Source: New Jersey CDL Manual, March 2025 cover; Section 8, July 2017 footer, printed 8-8-2, physical 102 > 8.2.6 Outage ↗
A tanker will carry a much denser liquid than on its previous trip. Why might the previous fill level be unsuitable even if expansion space is allowed?
Correct answer: The same volume can now exceed the allowable weight
A dense liquid can reach weight limits before the tank's volume is used. Loading decisions must account for liquid weight and applicable weight limits as well as expansion space.
Source: New Jersey CDL Manual, March 2025 cover; Section 8, July 2017 footer, printed 8-8-2, physical 102 > 8.2.7 How Much to Load? ↗
During an ordinary gradual stop in a liquid tanker, which braking habit does the manual identify as helping control surge?
Correct answer: Keep steady brake pressure and avoid releasing too soon
For surge control while stopping, the manual calls for steady brake pressure and cautions against releasing too soon. This item concerns a normal stop and does not prescribe an emergency or ABS braking procedure.
Source: New Jersey CDL Manual, March 2025 cover; Section 8, July 2017 footer, printed 8-8-2, physical 102 > 8.3.2 Controlling Surge ↗
A liquid-tanker driver makes a sudden steering change while braking. Which assessment matches the manual's warning?
Correct answer: The combined maneuver can cause a rollover
The manual warns that steering quickly while braking can roll a tank vehicle over. Smooth control is important because liquid movement and a high center of gravity affect the tanker's stability.
Source: New Jersey CDL Manual, March 2025 cover; Section 8, July 2017 footer, printed 8-8-2, physical 102 > 8.3.1 Drive Smoothly; 8.3.2 Controlling Surge ↗
A tanker driver plans to inspect the vehicle only after loading, just before driving. Which timing matches the tank-vehicle guidance?
Correct answer: Inspect before loading, unloading, or driving
Inspection is needed before loading, unloading, or driving so the tanker is suitable for the operation. A check planned only after loading misses the required opportunity to find problems before cargo enters the tank.
Source: New Jersey CDL Manual, March 2025 cover; Section 8, July 2017 footer, printed 8-8-1, physical 101 > Section 8 introduction > Inspection before loading, unloading, or driving ↗
