Red Seal Sprinkler Fitter Practice Exam

Which type of fitting is commonly used to connect sprinkler heads to piping?

1. Couplings or threaded fittings

2. Reducers

3. Elbows only

4. Adapters

The correct answer is: Couplings or threaded fittings

Couplings or threaded fittings are commonly used to connect sprinkler heads to piping because they provide a secure and reliable connection. These types of fittings allow for easy assembly and disassembly, making it straightforward to replace or maintain sprinkler heads. They are designed to fit the dimensions of standard piping and sprinkler fittings, ensuring a proper seal that prevents leaks. The versatility of couplings means they can be utilized in various applications within a sprinkler system. They can accommodate different materials, such as PVC, metal, and other piping types, facilitating compatibility across the system. While reducers can also be used to transition between different pipe sizes, they are not specifically designed for connecting sprinkler heads. Elbows are primarily used for changing the direction of the piping, and, similarly, adapters serve to change the type of fitting. However, neither of these fittings is as commonly employed for direct connections to sprinklers as threaded fittings or couplings are.