Fire Protection Definitions

38 flashcards · Other · by Rob C

1. Under NFPA 13, chapter 3 has what section?

   Definitions

2. 3.2.1* Approved

   Acceptable to authority having jurisdiction (AHJ)

3. 3.3.2* authority having jurisdiction AHJ

   An organization, office, or individual responsible for enforcing the requirements of a code or standard or having approving equipment materials, and installation, or a procedure

4. 3.2.3* Listed

   Equipment or materials or services that are accepted by the AHJ, and they undergo inspections to see if they meet appropriate standards and or found suitable for specified purposes

5. Shall vs should

   Shell is a mandatory requirement. Should is a recommendation or best practice

6. 3.2.6 standard

   Considered shell requirements. Mandatory

7. 3.3.206* sprinkler system

   Activated by heat from a fire causing discharge of water over the area of fire. Consists of integrated network of piping designed for Fire Protection based on standards.

8. What temperature for antifreeze system

   40 deg F

9. 3.3.60 Dry pipe system,

   Uses pressurized air, the difference in pressure causes water to flip through. Often use in areas that may freeze

10. Gridded versus looped system

    Parallel cross mains are connected by multiple branch lines where branch lies will receive water from both ends of parallel cross means multiple cross lanes are tied together to one looped cross main

11. 3.3.159* preaction system

    Use a single double or non interlock system. Has multiple ways of activating.

12. 3.3.206.10 wet pipe sprinkler system

    Most common, cost effective and efficient. Water is directly connected to sprinkler head

13. 3.3.8 array

    Ways to store columns of objects. Such as open,closed or standard

14. Arm over, branch line, sprigs, drops, riser nipples, cross main, feed main

15. 3.3.26 ceiling types

    flat continuous single panel sloped or horizontal smooth free of significant irregularities

16. 3.3.28 check valve

    allows flow in one direction only

17. Obstructed vs unobstructed

    obstructed: panel construction like beams, or trusses impede heat flow (like pocketing) unobstructed: no features or structures that can affect heat flow

18. Heat does what?

    flows

19. 3.3.46* Control Valve

    valve controlling flow to water based fire protection systems and devices i.e butterfly

20. Fire pump

    provides more pressure flow of water

21. Take outs what are they

    calculations to make sure system lines up and proven hydrostatics and other related equations prove system works

22. Residual Pressure

    pressure is at a specific flow that has been converted from the pitot reading that was determined in the flow test.

23. static pressure

    pressure with no water flowing.

24. The three variables needed to graph a water supply are

    static pressure, residual pressure, and flow in GPM gallons per minute

25. Flow test

    A test performed by the flow & measurement of water from one hydrant & the static & residual pressures from an adjacent hydrant for the purpose of determining the available water supply ant that location. -

26. Asterisk *

    Indicates there is additional information about the code in the Annex or Appendix.

27. -Flat ceiling

    . Indicates the code wording or verbiage has changed from the previous edition. Vutical Rule 4. A continuous ceiling in a single plane.

28. [Bracket]

    Indicates the code presented in bold is identical in another NFPA standard. It will be the standard number & edition year. Adding

29. Should

    . Indicates a recommendation or that which is advised but not required

30. Approved

    Acceptable to the Authority Having Jurisdiction

31. Ceiling Light

    The distance between the floor & the underside of the ceiling above (or roof deck) within the area. -

32. Feed Mains

    The pipes supplying cross mains, either directly or through risers

33. Non Cont. Obstr

    . An obstruction at or below the level of the sprinkler deflector that affects the discharge pattern of a single sprinkler

34. Draft Curtain

    A continuous material protruding downward from the ceiling to create a reservoir for of heat

35. Riser nipple

    A vertical pipe between the cross main & branch line

36. sloped

    A ceiling with a slope exceeding 2 in 12.

37. cross mains

    The pipes supplying the branch lines, either directly or through riser nipples.

38. Arm over

    A horizontal pipe that extends from the branch line to a single sprinkler or a sprinkler above & below a ceiling