Seal outlet valves on tank cars, barges, and trucks.

“Seal outlet valves on tank cars, barges, and trucks.” is a core task performed by Tank Car, Truck, and Ship Loaders. Among the occupation's 19 rated tasks, workers place it 19th by importance (#1 most important). About 80% of workers say it is relevant to their job.

This is a single occupation-specific task statement from O*NET. The figures below describe how central the task is to the job and what independent studies measure about AI and this kind of work — not a prediction that the task will be automated.

Work activities this task rolls up to

O*NET groups concrete tasks into broader work activities shared across many occupations.

• Assemble equipment or components. in Handling and Moving Objects

AI exposure

The OpenAI / Eloundou “GPTs are GPTs” study rates this task E0. No direct exposure — current language models give little or no time savings on this task.

Exposure measures whether a model could meaningfully speed the task up — it is an estimate of overlap with model capabilities, not a measure of whether the work will be done by software. The study's intermediate score (β) for this task is 0.00. Automation potential label: T0.

Other tasks in this occupation

• Verify tank car, barge, or truck load numbers to ensure car placement accuracy based on written or verbal instructions. · importance 4.6
• Connect ground cables to carry off static electricity when unloading tanker cars. · importance 4.6
• Check conditions and weights of vessels to ensure cleanliness and compliance with loading procedures. · importance 4.5
• Start pumps and adjust valves or cables to regulate the flow of products to vessels, using knowledge of loading procedures. · importance 4.5
• Observe positions of cars passing loading spouts, and swing spouts into the correct positions at the appropriate times. · importance 4.5
• Monitor product movement to and from storage tanks, coordinating activities with other workers to ensure constant product flow. · importance 4.5
• Copy and attach load specifications to loaded tanks. · importance 4.4
• Remove and replace tank car dome caps, or direct other workers in their removal and replacement. · importance 4.4
• Operate ship loading and unloading equipment, conveyors, hoists, and other specialized material handling equipment such as railroad tank car unloading equipment. · importance 4.3
• Test samples for specific gravity, using hydrometers, or send samples to laboratories for testing. · importance 4.3
• Test vessels for leaks, damage, and defects, and repair or replace defective parts as necessary. · importance 4.3
• Record operating data such as products and quantities pumped, gauge readings, and operating times, manually or using computers. · importance 4.3
• Operate industrial trucks, tractors, loaders, and other equipment to transport materials to and from transportation vehicles and loading docks, and to store and retrieve materials in warehouses. · importance 4.2
• Unload cars containing liquids by connecting hoses to outlet plugs and pumping compressed air into cars to force liquids into storage tanks. · importance 4.1

See all tasks on the Tank Car, Truck, and Ship Loaders page.

Sources for this page

Every figure above traces to a named public dataset and the exact release below — not hand-written opinion. See the full methodology for what each measure does and does not mean.

• O*NET 30.3 U.S. Department of Labor / National Center for O*NET Development
• “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130 OpenAI / academic

Data compiled June 2, 2026. Figures are estimates, not advice.

@misc{singulariki-task-12800,
  title  = {Seal outlet valves on tank cars, barges, and trucks.},
  author = {{Singulariki}},
  year   = {2026},
  note   = {O*NET 30.3; “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130. Accessed June 7, 2026},
  url    = {https://singulariki.com/tasks/task-12800}
}