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Special Application Sprinklers Flashcards

1
Q

Sprinklers are listed to achieve what

A

-Fire control (standard spray & extended coverage)
-Early fire suppression (ESFR)
-Life Safety (residential)

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2
Q

What is the main objective of most sprinklers

A

Fire control

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3
Q

Hose stream allowance and time duration light hazard

A

100gpm & 30 minutes

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4
Q

Hose stream allowance and time duration ordinary hazard

A

250gpm - 60 or 90 minutes

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5
Q

Hose stream allowance and time duration extra hazard

A

500gpm & 90 or 120 minutes

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6
Q

Standard spray sprinklers can’t be less then ____ apart

A

6 feet

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7
Q

Bigger K factor means what for water pressure

A

Less pressure required

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8
Q

K factor Triangle

A

Q
_______
K | P(square root)

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9
Q

3 main types of obstructions are

A
  1. To sprinkler discharge
  2. To spray pattern development
  3. That prevent sprinkler discharge from reaching hazard
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10
Q

Standard spray upright and pendant from unobstructed ceiling

A

1-12”

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11
Q

Standard spray upright in obstructed construction

A

1-6” below beam, 22” max from deck

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12
Q

Fast response sprinklers RTI

A

<50 (less then)

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13
Q

Standard spray sprinklers RTI

A

> 80 (more then)

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14
Q

Any sprinkler between 50-80 RTI are considered what

A

Special response

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15
Q

what does a lower RTI mean

A

Higher the sprinkler operates - faster response

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16
Q

What does a higher RTI mean

A

Lower the sprinkler operates - slower response

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17
Q

Standard spray upright/pendant max coverage and distance (Light Hazard)

A

225sqft - 15ft

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18
Q

Standard spray upright/pendant max coverage and distance (Ordinary Hazard)

A

130sqft - 15ft

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19
Q

Standard spray upright/pendant max coverage and distance (Extra Hazard)

A

100sqft - 12 feet

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20
Q

Standard spray upright/pendant distance from wall

A

4”

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21
Q

Standard spray upright/pedant clearance from storage

A

18”

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22
Q

What do baffles permit when installed

A

Less then minimum spacing

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23
Q

Baffles are extended _____ above deflectors of uprights

A

2-3”

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24
Q

Baffles are extended ______ with deflectors of pendants

A

At least even with deflector

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25
Q

Baffles must be ____ wide

A

6”

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26
Q

Baffles must be _______ long

A

8”

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27
Q

Baffles can be used in what hazard classifications

A

All of them

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28
Q

What standard spray sprinkler (upright & pendant) cannot be used in extra hazard

A

Quick Response

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29
Q

Standard spray sidewalls throw water

A

Horizontally and down

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30
Q

Standard spray sidewalls light hazard coverage area and distance max

A

196sqft - 14 feet

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31
Q

Standard spray sidewalls in ordinary hazard max coverage area and distance max

A

100sqft - 10ft

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32
Q

Standard spray sidewalls minimum distance between heads (light & ordinary)

A

6 feet

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33
Q

Standard spray sidewall in light and ordinary hazard distance from wall

A

4” end wall
4-6 mounted

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34
Q

Standard spray sidewall in light hazard distance below ceilings unobstructed

A

Non/limited combustion

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35
Q

Standard spray sidewall in ordinary hazard distance below ceilings obstructed

A

12-18”

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36
Q

Standard spray sidewall max distance below storage

A

18”

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37
Q

Max coverage area for extended coverage sprinklers

A

20’ x 20’ (400sqft)

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38
Q

Min distance between extended coverage sprinklers (upright and pendant)

A

8 feet

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39
Q

Obstruction rule for extended coverage sprinklers

A

4 x rule along walls
4 x rule for joisting

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40
Q

Extended coverage sprinklers max coverage and spacing (light & ordinary)

A

400 sqft - 20 feet

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41
Q

Extended coverage sprinklers max coverage and spacing (Extra & High piled)

A

196sqft - 14’

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42
Q

Extended coverage sprinklers

-min from wall
-distance below ceilings
-distance below obstructions
-clearance to storage

A

Same as standard spray upright & pendants

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43
Q

Extended coverage sidewalls max coverage (light & ordinary)

A

400sqft

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44
Q

Extended coverage sidewalls max spacing (light hazard)

A

28 feet

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45
Q

Extended coverage sidewalls max spacing (ordinary hazard)

A

24 feet

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46
Q

Extended coverage sidewalls min distance apart

A

Shall not be within the protection area of another sprinkler without baffles

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47
Q

Extended coverage SW distance below ceilings obstructed

A

Light - non/limited combustion
Ordinary - 12”-18”

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48
Q

Extended coverage sidewalls distance of clearance to storage (light and ordinary)

A

18”

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49
Q

CMSA stands for

A

Control mode special application sprinkler

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50
Q

CMSA sprinkles produce what kind of water droplets

A

Large

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51
Q

CMSA minimum coverage area is

52
Q

CMSA heads in storage occupies, what heads are permitted on wet systems

A

Ordinary
Intermediate
High temp

53
Q

CMSA heads in storage occupies, what heads are permitted on dry systems

A

High temp only

54
Q

CMSA uprights can be attached to sprinkler piping what size

A

4” and less

55
Q

If CMSA uprights are attached to sprinkler piping 4” or more what must be done

A

Heads offset 12” horizontally or vertically

56
Q

CMSA sprinklers clearance to storage

57
Q

CMSA sprinklers coverage for

-N/C unobstructed and obstructed
- combustible unobstructed

58
Q

CMSA coverage for

Combustible obstructed
Racks combustible & obstructed
Racks N/C & unobstructed

59
Q

CMSA sprinklers max and min distance between

-N/C unobstructed and obstructed
- combustible unobstructed

A

12’ max
8’ min

60
Q

CMSA min and max spacing

Combustible obstructed
Racks combustible & obstructed
Racks N/C & unobstructed

A

10’ max
8’ min

61
Q

ALL uprights and pendants minimum from walls is

62
Q

CMSA sprinklers distance below unobstructed and obstructed ceilings

A

Unobstructed - 6-8”
Obstructed - 6-12”

63
Q

CMSA - obstruction to spray pattern rule

A

3x the longest dimension away

24”

64
Q

Obstruction preventing discharge from reaching hazard CMSA rules

A
  • ## obstructions over 24” require coverage
65
Q

ESFR stands for

A

Early suppression fast response

66
Q

Early fire suppression requires

A

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
Q

RTI means

A

Response time Index

68
Q

RDD means

A

Required delivery density

69
Q

ADD means

A

Actual delivered density

70
Q

When actual delivered density is less then required delivered density what happens

A

Sprinkler discharge is no longer effective enough to achieve early suppression

71
Q

ESFR minimum coverage area is

72
Q

ESFR max area coverage is

73
Q

ESFR clearance from storage is

74
Q

ESFR shift rule is

A

1’ movement from max coverage area to eliminate obstruction issues

Spacing can never exceed 12’

75
Q

What system are ESFR heads used on

A

Wet system

76
Q

Flat ceiling is considered

A

2” up for every 12” out of

77
Q

Draft curtains are to be a minimum of

78
Q

Draft curtains are used with what heads

79
Q

Fans have a max blade size of

80
Q

ESFR heads must be how far from fan

81
Q

ESFR sprinkler spacing storage less then <30

82
Q

ESFR sprinkler spacing storage more then >30

83
Q

Minimum distance between all special application sprinklers (CMSA, Residential, Extended, ESFR) (pendants and uprights)

84
Q

ESFR K- factor used in Non-combustible, Unobstructed + distance below ceiling

A

K 14

Upright - 3-12”
Pendant - 6 - 14”

85
Q

ESFR K- factor used in Non-combustible, Obstructed + distance below ceiling

A

K 16.8

Upright - 3 to 12”
Pendant - 6 to 14”

86
Q

ESFR K- factor used in combustible, Unobstructed + distance below ceiling

A

K 22.4

Pendant - 6 to 18”

87
Q

ESFR K- factor used in combustible, obstructed + distance below ceiling

A

K 25.2

Pendant 6 -18 “

88
Q

ESFR and CMSA heads clearance to storage

89
Q

ALL heads must be a minimum of what from a wall

90
Q

ESFR obstruction rules

A

Beam 12” or less - 12” away
>12” to 24 - 24” away
>24” - head on each side

91
Q

Quick response early suppression sprinklers have an rti of

A

50 or less
Do not exist

92
Q

Life safety sprinklers create a livable space how far above the floor

93
Q

Residential sprinklers must be

A

QR type
RTI of 50 or less
Listed for use in dwelling units
Wet system only

94
Q

Residential sprinklers max coverage area is

A

Based off manufactures listing

95
Q

Minimum distance between residential sprinklers is

96
Q

Residential pendant or upright distance from ceiling is

97
Q

Residential SW from ceiling is

98
Q

Obstruction rule for residential

A

4 x Rule with a max of 36” for truss

99
Q

Minimum of clear space to obstruction for residential SW is

100
Q

Shadow areas in residential cannot exceed

A

15sqft per head

101
Q

Max width of residential shadow cannot exceed

102
Q

What do draft curtains do

A

Protect 2 different kinds of heads from cold solder where you can’t have a wall

103
Q

What do draft stops do

A

Prevents heat from rising vertically

104
Q

Dry sprinklers are to be installed

A

In areas with temps below 4C
Into the RUN of a Tee

105
Q

If Mullions are more then ____ thick you need window sprinklers on each side

106
Q

In rack sprinklers require at least ___ for heights up to 30 ft

107
Q

In rack sprinklers require at least ___ for heights over 30 ft

108
Q

In rack K factor heads

A

5.6
8.0
11.2

109
Q

In rack sprinkler heads are permitted to be less then ____ apart

110
Q

Max size of in rack system

A

40 000 sqft

111
Q

Horizontal spacing of in rack shall not exceed

112
Q

Corridor sprinklers are listed for spacing of

A

28x12
28x14

113
Q

Sprinklers installed where for combustible stairways

A

Top, Landings, below lowest landing

114
Q

Non combustible stairs head location

A

Top and bottom, under first landing unless sealed off

115
Q

Draft stop minimum depth

116
Q

Heads off draft stops

117
Q

Vertical opening head spacing

A

6’ apart

118
Q

Large vertical openings are considered to be

A

1000sqft or greater
Horizontal dimensions greater then 20ft

119
Q

What is installed at the bottom of an elevator shaft and at what depth

A

Sidewall sprinkler and 2ft above the floor of the pit

120
Q

What is installed at the top of an elevator shaft

A

Upright, pendant (ordinary or intermediate)

121
Q

Garbage chute sprinkler location

A

Top and bottom
Alternate floors
Chute terminal room

122
Q

Sprinklers in duct work location

A

Top of vertical riser
10’ on centre, 5’ from duct entrance

123
Q

Open grid ceiling rules

A

-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
Q

Cloud ceiling max ceiling height

125
Q

Max Ceiling gap is calculated how in cloud ceilings

A

1” gap per 1’ of ceiling height

126
Q

Formula to omit sprinklers above cloud ceilings is

A

X=A/B

A= inches in gap between clouds
B= Ceiling height
X=Max inches of gap

Int. (7 decks)

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