Special Application Sprinklers Flashcards
(126 cards)
1
Q
Sprinklers are listed to achieve what
A
-Fire control (standard spray & extended coverage)
-Early fire suppression (ESFR)
-Life Safety (residential)
2
Q
What is the main objective of most sprinklers
A
Fire control
3
Q
Hose stream allowance and time duration light hazard
A
100gpm & 30 minutes
4
Q
Hose stream allowance and time duration ordinary hazard
A
250gpm - 60 or 90 minutes
5
Q
Hose stream allowance and time duration extra hazard
A
500gpm & 90 or 120 minutes
6
Q
Standard spray sprinklers can’t be less then ____ apart
A
6 feet
7
Q
Bigger K factor means what for water pressure
A
Less pressure required
8
Q
K factor Triangle
A
Q
_______
K | P(square root)
9
Q
3 main types of obstructions are
A
- To sprinkler discharge
- To spray pattern development
- That prevent sprinkler discharge from reaching hazard
10
Q
Standard spray upright and pendant from unobstructed ceiling
A
1-12”
11
Q
Standard spray upright in obstructed construction
A
1-6” below beam, 22” max from deck
12
Q
Fast response sprinklers RTI
A
<50 (less then)
13
Q
Standard spray sprinklers RTI
A
> 80 (more then)
14
Q
Any sprinkler between 50-80 RTI are considered what
A
Special response
15
Q
what does a lower RTI mean
A
Higher the sprinkler operates - faster response
16
Q
What does a higher RTI mean
A
Lower the sprinkler operates - slower response
17
Q
Standard spray upright/pendant max coverage and distance (Light Hazard)
A
225sqft - 15ft
18
Q
Standard spray upright/pendant max coverage and distance (Ordinary Hazard)
A
130sqft - 15ft
19
Q
Standard spray upright/pendant max coverage and distance (Extra Hazard)
A
100sqft - 12 feet
20
Q
Standard spray upright/pendant distance from wall
A
4”
21
Q
Standard spray upright/pedant clearance from storage
A
18”
22
Q
What do baffles permit when installed
A
Less then minimum spacing
23
Q
Baffles are extended _____ above deflectors of uprights
A
2-3”
24
Q
Baffles are extended ______ with deflectors of pendants
A
At least even with deflector
25
Baffles must be ____ wide
6”
26
Baffles must be _______ long
8”
27
Baffles can be used in what hazard classifications
All of them
28
What standard spray sprinkler (upright & pendant) cannot be used in extra hazard
Quick Response
29
Standard spray sidewalls throw water
Horizontally and down
30
Standard spray sidewalls light hazard coverage area and distance max
196sqft - 14 feet
31
Standard spray sidewalls in ordinary hazard max coverage area and distance max
100sqft - 10ft
32
Standard spray sidewalls minimum distance between heads (light & ordinary)
6 feet
33
Standard spray sidewall in light and ordinary hazard distance from wall
4” end wall
4-6 mounted
34
Standard spray sidewall in light hazard distance below ceilings unobstructed
Non/limited combustion
35
Standard spray sidewall in ordinary hazard distance below ceilings obstructed
12-18”
36
Standard spray sidewall max distance below storage
18”
37
Max coverage area for extended coverage sprinklers
20’ x 20’ (400sqft)
38
Min distance between extended coverage sprinklers (upright and pendant)
8 feet
39
Obstruction rule for extended coverage sprinklers
4 x rule along walls
4 x rule for joisting
40
Extended coverage sprinklers max coverage and spacing (light & ordinary)
400 sqft - 20 feet
41
Extended coverage sprinklers max coverage and spacing (Extra & High piled)
196sqft - 14’
42
Extended coverage sprinklers
-min from wall
-distance below ceilings
-distance below obstructions
-clearance to storage
Same as standard spray upright & pendants
43
Extended coverage sidewalls max coverage (light & ordinary)
400sqft
44
Extended coverage sidewalls max spacing (light hazard)
28 feet
45
Extended coverage sidewalls max spacing (ordinary hazard)
24 feet
46
Extended coverage sidewalls min distance apart
Shall not be within the protection area of another sprinkler without baffles
47
Extended coverage SW distance below ceilings obstructed
Light - non/limited combustion
Ordinary - 12”-18”
48
Extended coverage sidewalls distance of clearance to storage (light and ordinary)
18”
49
CMSA stands for
Control mode special application sprinkler
50
CMSA sprinkles produce what kind of water droplets
Large
51
CMSA minimum coverage area is
80sqft
52
CMSA heads in storage occupies, what heads are permitted on wet systems
Ordinary
Intermediate
High temp
53
CMSA heads in storage occupies, what heads are permitted on dry systems
High temp only
54
CMSA uprights can be attached to sprinkler piping what size
4” and less
55
If CMSA uprights are attached to sprinkler piping 4” or more what must be done
Heads offset 12” horizontally or vertically
56
CMSA sprinklers clearance to storage
36”
57
CMSA sprinklers coverage for
-N/C unobstructed and obstructed
- combustible unobstructed
130sqft
58
CMSA coverage for
Combustible obstructed
Racks combustible & obstructed
Racks N/C & unobstructed
100sqft
59
CMSA sprinklers max and min distance between
-N/C unobstructed and obstructed
- combustible unobstructed
12’ max
8’ min
60
CMSA min and max spacing
Combustible obstructed
Racks combustible & obstructed
Racks N/C & unobstructed
10’ max
8’ min
61
ALL uprights and pendants minimum from walls is
4”
62
CMSA sprinklers distance below unobstructed and obstructed ceilings
Unobstructed - 6-8”
Obstructed - 6-12”
63
CMSA - obstruction to spray pattern rule
3x the longest dimension away
24”
64
Obstruction preventing discharge from reaching hazard CMSA rules
- obstructions over 24” require coverage
-
65
ESFR stands for
Early suppression fast response
66
Early fire suppression requires
Fast operation to deliver a large volume of water using large water droplets with a central stream to penetrate the seat of the fire
67
RTI means
Response time Index
68
RDD means
Required delivery density
69
ADD means
Actual delivered density
70
When actual delivered density is less then required delivered density what happens
Sprinkler discharge is no longer effective enough to achieve early suppression
71
ESFR minimum coverage area is
64sqft
72
ESFR max area coverage is
100sqft
73
ESFR clearance from storage is
36”
74
ESFR shift rule is
1’ movement from max coverage area to eliminate obstruction issues
Spacing can never exceed 12’
75
What system are ESFR heads used on
Wet system
76
Flat ceiling is considered
2” up for every 12” out of
77
Draft curtains are to be a minimum of
24”
78
Draft curtains are used with what heads
ESFR
79
Fans have a max blade size of
24 ft
80
ESFR heads must be how far from fan
36”
81
ESFR sprinkler spacing storage less then <30
12ft
82
ESFR sprinkler spacing storage more then >30
10ft
83
Minimum distance between all special application sprinklers (CMSA, Residential, Extended, ESFR) (pendants and uprights)
8 ft
84
ESFR K- factor used in Non-combustible, Unobstructed + distance below ceiling
K 14
Upright - 3-12”
Pendant - 6 - 14”
85
ESFR K- factor used in Non-combustible, Obstructed + distance below ceiling
K 16.8
Upright - 3 to 12”
Pendant - 6 to 14”
86
ESFR K- factor used in combustible, Unobstructed + distance below ceiling
K 22.4
Pendant - 6 to 18”
87
ESFR K- factor used in combustible, obstructed + distance below ceiling
K 25.2
Pendant 6 -18 “
88
ESFR and CMSA heads clearance to storage
36”
89
ALL heads must be a minimum of what from a wall
4”
90
ESFR obstruction rules
Beam 12” or less - 12” away
>12” to 24 - 24” away
>24” - head on each side
91
Quick response early suppression sprinklers have an rti of
50 or less
Do not exist
92
Life safety sprinklers create a livable space how far above the floor
5 ft
93
Residential sprinklers must be
QR type
RTI of 50 or less
Listed for use in dwelling units
Wet system only
94
Residential sprinklers max coverage area is
Based off manufactures listing
95
Minimum distance between residential sprinklers is
8ft
96
Residential pendant or upright distance from ceiling is
1-4”
97
Residential SW from ceiling is
4-6”
98
Obstruction rule for residential
4 x Rule with a max of 36” for truss
99
Minimum of clear space to obstruction for residential SW is
8 ft
100
Shadow areas in residential cannot exceed
15sqft per head
101
Max width of residential shadow cannot exceed
24”
102
What do draft curtains do
Protect 2 different kinds of heads from cold solder where you can’t have a wall
103
What do draft stops do
Prevents heat from rising vertically
104
Dry sprinklers are to be installed
In areas with temps below 4C
Into the RUN of a Tee
105
If Mullions are more then ____ thick you need window sprinklers on each side
2”
106
In rack sprinklers require at least ___ for heights up to 30 ft
15psi
107
In rack sprinklers require at least ___ for heights over 30 ft
30psi
108
In rack K factor heads
5.6
8.0
11.2
109
In rack sprinkler heads are permitted to be less then ____ apart
6 ft
110
Max size of in rack system
40 000 sqft
111
Horizontal spacing of in rack shall not exceed
8 ft
112
Corridor sprinklers are listed for spacing of
28x12
28x14
113
Sprinklers installed where for combustible stairways
Top, Landings, below lowest landing
114
Non combustible stairs head location
Top and bottom, under first landing unless sealed off
115
Draft stop minimum depth
18”
116
Heads off draft stops
6-12”
117
Vertical opening head spacing
6’ apart
118
Large vertical openings are considered to be
1000sqft or greater
Horizontal dimensions greater then 20ft
119
What is installed at the bottom of an elevator shaft and at what depth
Sidewall sprinkler and 2ft above the floor of the pit
120
What is installed at the top of an elevator shaft
Upright, pendant (ordinary or intermediate)
121
Garbage chute sprinkler location
Top and bottom
Alternate floors
Chute terminal room
122
Sprinklers in duct work location
Top of vertical riser
10’ on centre, 5’ from duct entrance
123
Open grid ceiling rules
-1/4” min size grid
-Thickness can’t be more then open
-Opening must make up 70% of the area of ceiling
-Light hazard only
124
Cloud ceiling max ceiling height
20 ft
125
Max Ceiling gap is calculated how in cloud ceilings
1” gap per 1’ of ceiling height
126
Formula to omit sprinklers above cloud ceilings is
X=A/B
A= inches in gap between clouds
B= Ceiling height
X=Max inches of gap
