Chapter 9

Question 1

4 main types of sprinkler systems:

Answer 1

Wet Pipe
Dry Pipe
Deluge
Pre-action

Question 2

According to NFPA statistics, about ___% of fires in sprinklered building are either extinguished by the sprinklers or held in check until they can be completely extinguished by the FD.

Answer 2

96%

Question 3

The ___ is an indicating valve; at a. glance a FF can tell if it is open or closed. Typically is located just under the sprinkler alarm valve.

Answer 3

Main valve

Question 4

3 types of control valves:

Answer 4

Outside screw and yoke
Post indicator valve
Wall post indicator

Question 5

___: Threaded stem is showing(___) not showing(___) and is the most common main water control valve.

Answer 5

Outside screw and yoke
Open
Shut

Question 6

___: Stem is inside a post; a window shower whether ___ or ___.

Answer 6

Post indicator valve

Open or shut

Question 7

___: Generally the same as post indicator valve but protrudes from the wall.

Answer 7

Wall post indicator

Question 8

___ valves are for both system drainage and alarm silencing.

Answer 8

Stopcock valves

Question 9

___ valves are used for system drainage and as test valves.

Answer 9

Global valves

Question 10

The ___ valve is used to simulate actuation of the sprinkler system to ensure it is working properly.

Answer 10

Test/inspector valve

Question 11

The ___ can also be used to test the system, much like the alarm test/inspector valve.

Answer 11

Main drain

Question 12

The water flow alarm is either ___ or ___.

Answer 12

Electronic or Hydraulic

Question 13

Water flow alarm… In hydraulic alarms water actually drives the ___, it is a local alarm that alerts building personnel.

Answer 13

Alarm gong

Question 14

Water flow alarm… In electronic alarms the water presses against a diaphragm that activates the alarm. Can be a ___ alarm, or it can be connected to a ___ that can notify the fire department when the alarm is activated.

Answer 14

Local alarm

monitoring company

Question 15

Water supply for sprinklers must be ___, ___, and of adequate ___.

Answer 15

Reliable
Automatic
Volume and pressure

Question 16

The flow must be able to provide a minimal residual water press use of ___ psi tote highest and farthest sprinkler head.

Answer 16

15 psi

Question 17

An indication that a fire pump is present is a ___; which looks like a wall hydrant that has multiple ___ inch outlets; the number of outlets is determined by the ___ for the occupancy.

Answer 17

Test Header
2.5”
Required flow

Question 18

On sprinklers with a single riser, the FDC is connected to the ___ side of the system.

Answer 18

Sprinkler side

Question 19

On a multiple riser system, the FDC is connected to the ___ side of the system.

Answer 19

Supply side

Question 20

On a multiple riser system, the FDC is connected to the supply side of the system, thus the flow can be controlled by shutting down the ___ valve.

Answer 20

Main water control valve.

Question 21

Because dry pipe systems take longer to deliver water, many have ___ or ___ to speed up the process.

Answer 21

Accelerators or exhausters

Question 22

___: Like a dry pipe but additional alarm equipment must be activated before the pipes will with water; then a sprinkler head must still be activated to flow water.

Answer 22

Pre action sprinkler system

Question 23

Sprinkler system used in areas where water damage must be avoided.

Answer 23

Pre action system

Question 24

___: like pre action, has separate additional equipment. Typically used in locations where the occupancy is extra hazardous.

Answer 24

Deluge system

Question 25

These sprinkler systems comply with NFPA 13D.

Answer 25

Residential systems

Question 26

___ systems do not require a FDC; if there is one present, it will likely be a single ___ inch outlet.

Answer 26

Residential systems 2.5" outlet

Question 27

If the FDC is used on a residential sprinkler system, it is imperative that the system be pumped at whatever the ___ pressure is.

Answer 27

Standard domestic

Question 28

Standpipes... Class ___: For use by FD and those trained in handling heavy fire streams.

Answer 28

Class I

Question 29

Standpipes... Class ___: For use primarily by building occupants.

Answer 29

Class II

Question 30

Standpipes... Class__: For us by FD or building occupants; FF's should always use their own hose.

Answer 30

Class III

Question 31

Class I standpipe must have a water supply adequate to flow ___ gpm for ___ minutes.

Answer 31

500 gpm 30 minutes

Question 32

Class I standpipe must have a minimum residual pressure of ___ psi at the highest/farthest outlet while flowing ___ gpm.

Answer 32

65 psi 500 gpm

Question 33

Class I standpipe, if more than one riser; system is still required to flow 500 gpm for 30 minutes for the first standpipe and each additional standpipe must flow a minimum of ___ gpm for at least ___ minutes.

Answer 33

250 gpm 30 minutes

Question 34

Class II standpipe must flow ___ gpm for at least ___ minutes.

Answer 34

100 gpm 30 minutes

Question 35

Class II standpipe must must provide a minimum residual pressure of ___ psi at the highest/farthest outlet while flowing a minimum of ___ gpm.

Answer 35

65 psi 100 gpm

Question 36

Class III standpipe must be capable of flowing the same required minimums of a Class ___ system.

Answer 36

Class I

Question 37

Standpipes... FF's must be aware of ___; specifically in Class III devices.

Answer 37

Pressure reducing devices

Question 38

Any standpipe system that has flow pressures of ___ psi or more should be tagged or marked to indicate the higher pressure.

Answer 38

150 psi

Question 39

Standpipe systems can be either wet or dry and ar broken down into ___ types. They are...

Answer 39

4 types Wet Standpipe Dry Standpipe Dry standpipe that is under air pressure Dry standpipe with no water supply

Question 40

NFPA ___ cover the installation, maintenance, and minimum requirements of standpipe systems.

Answer 40

NFPA 14

Question 41

NFPA 14 mandates that the standpipe systems be limited to ___ feet. When a structure is higher than that, additional zone/zones must be installed; however, no two zones are allowed to exceed the height of ___ feet.

Answer 41

275 feet 550 feet

Question 42

Standpipe FDC's must be of the ___ type; some municipalities have mandated the connection be of the ___ inch storz type.

Answer 42

Female type 5" storz

Question 43

``` FDC color coding: Red - Green - Silver - Yellow - ```

Answer 43

Standpipe Automatic sprinkler Non automatic sprinkler Combination sprinkler/standpipe

Question 44

___ and ___ types are usually found in computer rooms, spray booths, areas of intricate electrical equipment, or areas of flammable liquid storage.

Answer 44

CO² and Halogenated

Question 45

___ works by diluting the air in the room to displace oxygen.

Answer 45

CO²

Question 46

___ work by interfering with and interrupting the chemical chain reaction of fire.

Answer 46

Halogenated agents

Question 47

___: Halogenated hydrocarbons in a chemical compound that contains carbon and one or more of the elements from the halogen series(booming, chlorine, fluorine, and iodine).

Answer 47

Halon

Question 48

Main hazard of halon is ___.

Answer 48

Toxicity

Question 49

Main hazards of ___ are limited visibility and respiratory irritation; considered non toxic.

Answer 49

Dry chemical

Question 50

___: Extra ability of cooling and removing the fuel by coating it.

Answer 50

Wet chemical or Class K

Question 51

Newer agents called ___ are evolving and as the name suggests they do not leave a residue.

Answer 51

Clean agents

Question 52

Clean agents... The actual agent may be ___ or ___.

Answer 52

FE-36 or Centrimax ABC 40

Question 53

Clean agents are effective for Class ___ fires and are considered ___, ___, and ___ safe.

Answer 53

A, B, and C nontoxic, nonconductive, and ecologically safe

Question 54

Each type of built in fire protections system, when activated, require ___.

Answer 54

FD support

Question 55

NFPA ___: Recommended practice for FD operations In properties protected by sprinkler and standpipe systems.

Answer 55

NFPA 13E

Question 56

NFPA 13E states you should initially develop and maintain a PDP of ___ psi.

Answer 56

150 psi

Question 57

NFPA 13E states that a minimum of two ___ inch hose lines supply the sprinkler or standpipe systems.

Answer 57

2.5"

Question 58

In general, a high-rise kit should be capable of flowing at least ___ gpm.

Answer 58

250 gpm

Question 59

High-rise kit should contain at least the following:

Answer 59

``` Minimum of 100ft of 1 3/4" or 2" hose Water thief or gated wye Spanner wrenches Pipe Wrench Hand wheel Nozzle Door wedges Typical hand tools and carried equipment such as hand lights and forcible entry tools ```

Question 60

The standpipe connection should always be made ___ and the hose flaked out within the stairwell.

Answer 60

Floor below the fire