1 Exam Prep NFPA 14 Stand Pipe Systems Questions and Answers (Plumbing Contractors)

Transcription

1 1 Exam Prep NFPA 14 Stand Pipe Systems Questions and Answers (Plumbing Contractors) 1. What is the minimum diameter for a non-hydraulically calculated Class III fire standpipe that is part of a combined system? a) 2" b) 3" c) 4" 2. Connections to public water systems shall be controlled by post-indicator valves of an approved type located at least from the building protected. a) 40" b) 96" c) 20' d) 40' 3. The hydrostatic test of a new standpipe system which will operate at 200 psi shall be tested at a minimum pressure of psi. a) 150 b) 200 c) 250 d) A 6" diameter standpipe will require a diameter drain connection. a) 1" b) 2" c) 3" 5. Which of the following metric units of measure equals 1 gallon? a) liters b) 2.2 liters c) 1 liter d).3785 liters 1

2 6. Standpipe fittings shall be extra heavy pattern where system pressures exceed. a) 125 psi b) 150 psi c) 175 psi d) 250 psi 7. The minimum residual pressure at the hydraulically most remote 1-1/2" hose station is.. a) 50 psi b) 65 psi c) 100 psi d) 150 psi 8. A fire department connection on the street side of a building shall have a sign that reads. a) Fire Hose Connection b) Fire Standpipe Connection c) Fire Department Connection d) STANDPIPE 9. The minimum flow rate for the hydraulically most remote outlet in a Class II system is. a) 80 gpm b) 100 gpm c) 250 gpm d) 500 gpm 10. Class I systems shall be provided with diameter hose connections. a) 4 inch b) 3 inch c) 2 inch d) 2-1/2 inch 11. Horizontal piping hangers shall be spaced at a maximum separation distance. a) of 5 feet b) of 10 feet c) of 15 feet d) according to NFPA 13 2

3 12. The organization responsible for approving equipment and installations is. a) National Fire Prevention Association b) The Builder of Record c) The Authority Having Jurisdiction d) The Architect 13. Which system has piping that supplies both hose connections and automatic sprinklers? a) dual supply b) dual feed c) dual purpose d) combined 14. A connection through which the fire department can pump water into a standpipe is. a) a fire department connection b) a standpipe riser connector c) an accessible inlet connection d) a drainage outlet fitting 15. The standpipe system that relies on a fire department connection to supply the system is. a) an automatic standpipe system b) a manual standpipe system c) a semiautomatic standpipe system d) a single zone standpipe system 16. A water storage drum that can hold 800 gallons, when filled, can hold liters. a) 2,400 liters b) 2,512 liters c) 2,800 liters d) 3,028 liters 17. A water drum 5' in diameter and 12' high will contain gallons, if only 40% filled. a) b) c) 1,761 d) 6,667 3

4 18. The minimum radius of a bend when bending 2" Type L copper shall be. a) 5 pipe diameters b) 6 pipe diameters c) 10 diameters d) 12 diameters 19. A fire department connection shall have 2-1/2 internal threaded swivel fittings. a) at least 2 b) at least I c) at least 4 d) at least Where is the fire department connection located on an automatic wet standpipe system? a) on the system side of the system control valve b) on the system side of the system check valve c) on the supply side of any isolating valve d) all of the above are acceptable locations 21. The friction loss through a 1-1/2" globe valve is equal to that of feet of pipe. a) 20 feet b) 46 feet c) 70 feet d) 69 feet 22. Which of the four following choices is not the "Authority Having Jurisdiction"? a) a fire marshal b) the health department c) a commanding officer d) a property manager 23. What is the diameter of a listed dial spring pressure gauge located at the top of a standpipe? a) 2-1/4 b) 3-1/2" c) 4-1/8" 24. At which temperature shall a standpipe be protected against freezing? a) 32 degrees F. b) 35 degrees F. c) 38 degrees F. d) 40 degrees F. 4

5 1 Exam Prep NFPA 14 Stand Pipe Systems Answers 1 Answer: D Solution: 7.6, Answer: D Solution: Answer: C Solution: , over 150 psi, SO psi over = 250 psi 4 Answer: B Solution: Table Answer: A Solution: Table Answer: C Solution: Answer: B Solution: Answer: D Solution: Answer: B Solution: Answer: D Solution: Answer: D Solution: Answer: C Solution: Answer: D Solution: Answer: A Solution: Answer: B Solution: Answer: D Solution: Table 1.5.1, Metric Units, 800 x = 3, Answer: B Solution: 3.14 x 2.5' x 2.5' x 12' = CF x 7.48 x.40 = Answer: B Solution: Answer: A Solution: Answer: D Solution: (l) 21 Answer: B Solution: Table Answer: D Solution: Annex A A.3.2.2, read the choices 23 Answer: B Solution: Answer: D Solution: