Câu 15: CFPS: Certified Fire Protection Specialist

When calculating friction loss in a sprinkler system, it is generally accepted that a 90° standard elbow of 2 in. (50 mm) in diameter is the equivalent of:

1. A. 2 feet of pipe (0.6 m)
2. B. 3 feet of pipe (0.9 m)
3. C. 5 feet of pipe (1.5m)
4. D. 6 feet of pipe (1.8 m) — đáp án hiện tại