What is a "Pressure Vessel" used for?

• A. To support electrical wiring systems
• B. To contain, store, or process an expansible fluid under pressure
• C. To serve as a structural element in construction
• D. To transport liquids at ambient temperatures

Answer: (B)

A pressure vessel is specifically designed to contain, store, or process an expansible fluid under pressure. This definition encompasses a wide range of applications in various industries, including chemical processing, oil and gas, and energy production. The key characteristic of a pressure vessel is its ability to handle fluids—liquids or gases—that are at a pressure significantly different from the surrounding atmosphere, often resulting in high structural integrity requirements for the vessel’s construction material and design.

This option correctly identifies the primary function of pressure vessels, which is vital for safety and efficiency in many industrial processes that involve pressurized fluids. The design must account for the pressure exerted by the fluids contained within, ensuring the vessel can operate safely and withstand possible pressure fluctuations.

In contrast, the other options relate to functions not associated with pressure vessels. Supporting electrical wiring systems or serving as structural elements are functions related to construction or infrastructure, while transporting liquids at ambient temperatures does not pertain to the specific capabilities and requirements related to pressure vessels.