Which of the following describes coupling types commonly used on attack lines?

Which of the following describes coupling types commonly used on attack lines?

• A. Storz
• B. Threaded and non-threaded
• C. Quick-connect
• D. Barbed

Answer: (B)

Attack lines connect using two broad categories of hose couplings: threaded and non-threaded. Threaded connections screw together with male and female fittings, forming a secure seal under pressure. Non-threaded designs (like Storz) join by a quick, quarter-turn connection that mates ends of the same size without threads. Describing coupling types in these two groups covers the common options you’ll encounter on attack lines, regardless of the specific reducer, nozzle, or manifold in use. Naming a single non-threaded style (Storz) is less informative because it doesn’t capture the whole range of non-threaded options. Quick-connect and barbed are specific styles or unsuitable for standard attack-line use, so they don’t describe the general approach as accurately.

Attack lines connect using two broad categories of hose couplings: threaded and non-threaded. Threaded connections screw together with male and female fittings, forming a secure seal under pressure. Non-threaded designs (like Storz) join by a quick, quarter-turn connection that mates ends of the same size without threads. Describing coupling types in these two groups covers the common options you’ll encounter on attack lines, regardless of the specific reducer, nozzle, or manifold in use. Naming a single non-threaded style (Storz) is less informative because it doesn’t capture the whole range of non-threaded options. Quick-connect and barbed are specific styles or unsuitable for standard attack-line use, so they don’t describe the general approach as accurately.