Which of the following items is included in a patching kit?

A patching kit is designed to provide materials and tools that can be used to repair leaks or breaches in various surfaces, particularly in the context of damage control. Among the options listed, rubber gaskets are included in a patching kit because they are essential for creating a secure seal between surfaces, especially in piping or around machinery. They help to prevent leaks by conforming to uneven surfaces, ensuring that when bolted in place, they form an airtight or watertight seal.

Rubber gaskets are crucial in situations where flexibility and resilience are needed to withstand pressure and different environmental conditions. This makes them particularly useful in emergencies where quick and effective repairs are necessary to prevent further damage or loss.

Other components like plastic sheeting, metal bands, and sealant tape can also be found in various repair kits but are not specifically categorized under patching kits as rubber gaskets are for their role in sealing and repairing leaks efficiently and effectively.