NFPA 14

Question 1

1.1.1 Scope of standard.

Answer 1

1.1.1 This standard covers the minimum requirements for the installation of standpipes and hose systems.

Question 2

1.2 Purpose of standard.

Answer 2

1.2.1 The purpose of this standard is to provide a reasonable degree of protection for life and property from fire through installation requirements for standpipes and hose systems based on sound engineering principles, test data, and field experience.

Question 3

3.3.1 Define Auxiliary Drain Connection.

Answer 3

3.3.1 A drain connection installed to permit draining water from a trapped section of pipe.

Question 4

3.3.3.1.2 Define FDC for Manual Standpipe.

Answer 4

3.3.3.1.2 A connection through which the fire department can pump the primary water supply to a manual standpipe system at the required system demand.

Question 5

3.3.4.1 Construction Types. Type I and II.

Answer 5

3.3.4.1 Those types in which the fire walls, structural elements, walls arches, floors, and roofs are approved noncombustible or limited-combustible materials.

Question 6

3.3.4.2 Construction Types. Type III.

Answer 6

3.3.4.2 Those types in which exterior walls and structural elements that are portions of exterior walls are approved noncombustible or limited combustible materials in which fire walls, interior structural elements, walls, arches, floors, and roofs are entirely or partially of wood or smaller dimensions than required for Type IV construction or are of approved noncombustible, limited-combustible, or other approved combustible materials.

Question 7

3.3.4.3 Construction Types. Type IV.

Answer 7

3.3.4.3 That type in which fire walls, exterior walls, and interior bearing walls and structural elements that are portions of such walls are of approved noncombustible or limited-combustible materials. Other constructed of solid or laminated wood or cross-laminated timber without concealed spaces within allowable dimensions of the building code.

Question 8

3.3.4.4 Construction Types. Type V.

Answer 8

3.3.4.4 That type in which structural elements walls, arches, floors, and roofs are entirely or partially of wood or other approved material.

Question 9

3.3.7 Define High-Rise Building.

Answer 9

3.3.7 A building where the floor of an occupiable story is greater than 75 ft above the lowest level of fire department vehicle access.

Question 10

3.3.8 Define Hose Station.

Answer 10

3.3.8 A combination of a hose rack or reel, hose nozzle, hose, and hose connection.

Question 11

3.3.9.1 Define Feed Main.

Answer 11

3.3.9.1 The portion of a standpipe system that supplies water to one or more standpipes.

Question 12

3.3.9.1.1 Define Express Main.

Answer 12

3.3.9.1.1 The type of feed main supplying only the upper zone(s) of a standpipe system.

Question 13

3.3.11.1 Define Nozzle Pressure.

Answer 13

3.3.11.1 Pressure required at the inlet of a nozzle to produce the desired water discharge characteristics.

Question 14

3.3.1.1.2 Define Residual Pressure.

Answer 14

3.3.11.2 For standpipe systems, pressure acting on a point in the system with a flow being delivered.

Question 15

3.3.11.3 Define Static Pressure.

Answer 15

3.3.11.3 For standpipe systems, pressure acting on a point in the system with no flow from the system.

Question 16

3.3.12 Define Pressure Control Valve.

Answer 16

3.3.12 A pilot-operated pressure reducing valve designed for the purpose of reducing the down-stream water pressure to a specific value under both flowing and nonflowing conditions.

Question 17

3.3.13 Define Pressure-Regulating Device.

Answer 17

3. 3.13.1 Pressure-Reducing Valve is a valve designated for the purpose of reducing the downstream water pressure under both flowing and nonflowing conditions.
4. 3.13.2 Pressure-Restricting Device is a valve or device designed for the purpose of reducing the downstream water pressure under flowing conditions only.

Question 18

3.3.15 Define Record Drawing.

Answer 18

3.3.15 A design, working, drawing, or as-built drawing that is submitted as the final record of documentation for the project.

Question 19

3.3.16 Define Standpipe.

Answer 19

3.3.16 The system piping that delivers the water supply for hose connections, and for sprinklers on combined systems, vertically from floor to floor.

Question 20

3.3.16.1 Define Horizontal Standpipe.

Answer 20

3.3.16.1 The horizontal portion of the system piping that delivers the water supply for two or more hose connections, and for sprinklers on combined systems, on a single level.

Question 21

3.3.17.1 Define Automatic Dry Standpipe System.

Answer 21

3.3.17.1 A standpipe system permanently attached to a water supply capable of supplying the system demand at all times, containing air or nitrogen under pressure, the release of which opens a dry pipe valve to allow water to flow into the piping system and out of the opened hose valve.

Question 22

3.3.17.2 Define Automatic Wet Standpipe System.

Answer 22

3.3.17.2 A standpipe system containing water at all times that is attached to a water supply capable of supplying the system demand at all times and that requires no action other than opening a hose valve to provide water a hose connections.

Question 23

3.3.17.3 Define Combined System.

Answer 23

A standpipe system that supplies both hose connections and automatic sprinklers.

Question 24

3.3.17.4 Define Manual Dry Standpipe System.

Answer 24

3.3.17.4 A standpipe system with no permanently attached water supply that relies exclusively on the fire department connection to supply the system demand.

Question 25

3.3.17.5 Define Manual Wet Standpipe System.

Answer 25

3.3.17.5 A standpipe system containing water at all times that relies exclusively on the fire department to connection to supply the system demand.

Question 26

3.3.17.6 Define Semiautomatic Dry Standpipe System.

Answer 26

3.3.17.6 A standpipe system permanently attached to a water supply that is capable of supplying the system demand at all times arranged through the use of a device such as a deluge valve and that requires activation of a remote control device to provide water at hose connections.

Question 27

3.3.17.7 Define Wet Standpipe System.

Answer 27

3.3.17.7 A standpipe system having piping containing water at all times.

Question 28

3.3.19 System Classes.

Answer 28

3. 3.91.1 Class I - A system that provides 2-1/2” hose connections to supply water for use by fire departments.
4. 3.19.2 Class II - A system that provides 1-1/2” hose stations to supply water for use primarily by trained personnel or by the fire department during initial response.
5. 3.19.3 Class III - A system that provides 1-1/2” hose stations to supply water for use by trained personnel and 2-1/2” hose connections to supply a larger volume of water for use by fire departments.

Question 29

3.3.22 Define Travel Distance.

Answer 29

3.3.22 The length measured on the floor or other walking surface along the centerline of the natural path of travel, starting from the hose outlet, curving around any corners or obstructions with a 12” clearance.

Question 30

5.2.1.2.1 Size of System Volume Limitations (Automatic Dry).

Answer 30

5. 2.1.2.1 Not more than 750 gallon system capacity shall be controlled by one dry pipe valve.
6. 2.1.2.2 Piping volume shall be permitted to exceed the requirements where the system design is such that water is delivered to the system the most remote hose connection in not more than 3 minutes.
7. 2.1.2.3 The use of a listed quick opening device shall be permited in order to meet the requirements.