What is used to ensure leak-proof joints in piping systems?

• A. Welds
• B. Bolts
• C. Gaskets and seals
• D. Rivets

Answer: (C)

Gaskets and seals are essential components in piping systems used to create leak-proof joints. They function by filling the space between two or more surfaces, preventing liquids or gases from escaping through the joints. When properly installed, gaskets and seals compress to form a barrier that withstands pressure and temperature fluctuations, ensuring that the integrity of the piping system is maintained.

In various applications, including shipbuilding, using gaskets and seals is crucial for maintaining safety and operational efficiency. They are designed to accommodate different materials, and their effectiveness can be influenced by factors such as material properties, temperature, and pressure levels of the fluids being contained.

While welds can provide strong joints by melting and fusing metals together, they may not always be sufficient for preventing leaks in every context, particularly in applications where thermal expansion and contraction can occur. Bolts and rivets create mechanical connections between components but rely on other materials, such as gaskets, to ensure a leak-proof seal. Therefore, gaskets and seals are specifically designed to address the issue of leaks in piping systems, making them the most suitable answer.