Standpipe, FDC, Hydrants Flashcards

1
Q

Standpipe system classes

A

Class 1
Class 2
Class 3

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2
Q

Class 1 standpipe system contains

A

2 1/2” hose connection, for trained personnel only

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3
Q

Class 2 standpipe contains

A

1 1/2” hose valves, intended for trained building occupants

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4
Q

Class 3 standpipe system contains

A

1-1/2” & 2-1/2” hoses valves, intended for FD use only

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5
Q

Class 2 and class 3 standpipe classes are supplied with what

A

100 ft of 1-1/2” hose

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6
Q

Nozzles that USED to be supplied for hoses in standpipes had

A

A 3/8 or 1/2” outlet that could not be shut off

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7
Q

Standpipe systems are generally designed by

A

An architect or engineer

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8
Q

All classes of standpipe requires valves on

A

Each floor

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9
Q

Hose valves shall be ____ from ground

A

Within easy reach, never over 5 feet
Never less then 3 feet

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10
Q

Class 1 standpipe systems located

A

-Each main floor landing
-at the highest stairway landing w/ access to roof
- hose travel distance must not be exceeded (130’ unsprinklered, 200’ for NFPA 13&13R)

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11
Q

Class 2 standpipe systems located

A

-The corridor or adjacent space to stairway enclosure
-every 130’

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12
Q

All new standpipe systems shall be tested at

A

200 psi, 2 hours, 0 psi loss Or 50 psi in excess of system pressure, whichever is greater

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13
Q

Standard fittings and hose valves are rated for a pressure up too

A

175psi

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14
Q

Standpipe system types

A
  • Automatic or Manual Wet
  • Automatic or Manual Dry
  • Semi Automatic
  • Combined
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15
Q

Automatic Wet and Dry standpipe system consist of

A

Wet - Full of water at all times, capable of supplying system demand at all times

Dry - Full of air until valve is opened, capable of supply system demand at all times

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16
Q

Manual wet and dry standpipe systems consist of

A

Wet - full of water at all times, relies on FD to supply system demand

Dry - full of air until valve is opened, no permanent demand, relies on FD to supply system demand

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17
Q

Semi-Automatic Dry standpipe system consists of

A

Attached water supply capable of supplying system demand utilizing a deluge valve which is activated by a remote device

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18
Q

Combination Standpipe system consist of

A

Supplies both hose connections and automatic sprinklers

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19
Q

Schedule 10 pipe is pressure rated for

A

300psi

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20
Q

How can standpipe be joined together

A

-grooved
-threaded
-welded

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21
Q

Where copper pipe is used

A

K,L and M can be used
Must be brazed

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22
Q

Hose valves shall have a minimum of ___ clearance around any part of the cabinet

A

2”

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23
Q

Standpipe system gauges located

A

Top floor of each riser

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24
Q

Class 3 standpipe systems located

A

-Locations comply with 1&2
-travel restraints for 2 do not apply
-

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25
Q

Standpipe system pipe size shall be a minimum of

A

4”

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26
Q

Combined systems in a partially sprinklered building shall have a minimum pipe size of

A

6”

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27
Q

Branch lines for standpipe systems shall not be smaller then

A

2 1/2” inch

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28
Q

If pressure exceeds 100psi on an 1-1/2 outlet, what is required

A

A pressure restricting device

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29
Q

Minimum pressure for most remote 2-1/2” outlet is

A

100psi

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30
Q

Minimum pressure limit for most remote 1-1/2” outlet

A

65psi

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31
Q

Minimum flows for class 1&3 (not out of hose connection, system demand)

A
  • 500 gpm through 2 most remote 2-1/2” outlets
  • 1000 gpm for fully sprinklered buildings
  • 1250 gpm for buildings that are not fully sprinklered
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32
Q

Minimum flow rate class 2

A

100 gpm @ 65 psi from most remote hose connection

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33
Q

Max flow rate single 2-1/2” valve

A

250gpm

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34
Q

Max flow rate for single 1-1/2” valve

A

100gpm

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35
Q

Drain size for PRV testing

A

2-1/2 and less 1 pipe size bigger

3” and higher - same size

Ex. 3” drain pipe for 2-1/2” PRV
2” pipe for 1-1/2” PRV

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36
Q

Water supply shall be able to meet system demand for

A

30 minutes

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37
Q

Buildings under construction must have

A

Hose connection at each floor level exit stairway & connection for FD hose

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38
Q

The maximum pressure at any point in the standpipe system shall not exceed

A

350psi

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39
Q

1-1/2” hoses stations are NOT ____

A

Considered standpipe systems

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40
Q

1-1/2” hoses stations are generally installed for

A

Mop up after a fire

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41
Q

Minimum size pipe a 1-1/2” hose station can be taken off of is

A

2-1/2” pipe OR 2” when hydraulically calculated

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42
Q

Hand hose stations with horizontal runs <under 20 will have what size minimum pipe feeding it

A

1”

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43
Q

Hand hose stations with horizontal runs 20-80 feet will have what size minimum pipe feeding it

A

1-1/4”

44
Q

Hand hose stations with horizontal runs more then >80 feet will have what size minimum pipe feeding it

A

1-1/2”

45
Q

All Vertical pipe feeding hose stations will be a minimum of

A

1”

46
Q

Hose stations must be installed with a coverage area of

A

100(hose length) + 30 (spray distance) = 130ft total

47
Q

Dry barrel fire hydrant main control valve is located (depth in ground)

A

1’ below the frost line

48
Q

Time requirement for hydrant draining is

A

Drain in 60 minutes

49
Q

Wet barrel hydrant control valve is located

A

Just below grade

50
Q

Wall hydrants are installed when

A

Fire dept. may need access in an area that has no hydrant

51
Q

How much water shall be above dry hydrant intake

A

2ft

52
Q

How much water below water intake for dry hydrant

A

1ft

53
Q

Dry hydrants must sit

A

Below the drought line (based off 50 year drought level for water source)

54
Q

What is used to protect hydrant damage

A

Pillars

55
Q

Class & Colour of Hydrant 1500+ gpm

A

Class AA & Blue

56
Q

Class & Colour of Hydrant 1000-1499 gpm

A

Class A & Green

57
Q

Class & Colour of Hydrant 500-900 gpm

A

Class B & Orange

58
Q

Class & Colour of Hydrant under 500 gpm

A

Class C & Red

59
Q

Hydrant how far from standpipe connection

A

100 feet

60
Q

Hydrant how far from sprinkler connection

A

45m (148 feet)

61
Q

What should be at the base of a hydrant

A
  • concrete pad
  • gravel for drainage
62
Q

Isolation valve # of turns rule

A

3x pipe diameter +or- 2 or 3 turns

63
Q

Hydrants shall be ______ above finish grade

A

18” to 36” (centre of outlet)

64
Q

Hydrants in house hoses shall be a minimum of _____ from floor

A

12”

65
Q

Minimum size piping for hydrants is

A

6”

66
Q

What is the minimum outlet size and number on an FDC

A

2-1/2” x 1

67
Q

Anything deemed a high rise building (over 75’ from FD access) must have how many FDC inlets

A

2-1/2”x4

68
Q

Automatic dry standpipe system can be no larger then ____

A

750gal

69
Q

Pneumatic test of standpipe system consist of

A

40 psi for 24 hours, 1.5 psi loss

70
Q

FDC shall be how far off the ground

A

18” to 48”

71
Q

FDC can be omitted when

A

-single storey building less then 2000sqft
-deluge system that exceeds the FD pumping capability
-remote area that doesn’t have FD access

72
Q

Minimum size FDC feeding fire engines is

A

4”

73
Q

Minimum size FDC feeding fire boats

A

6”

74
Q

Max size riser for single outlet FDC

A

3”

75
Q

Hydrants shall be a minimum of how far from building

A

40 feet

76
Q

Hydrants shall be spaced

A

300ft apart

77
Q

A control valve will be installed ____ from the hydrant and be which kind of valve

A

20ft - non rising stem

78
Q

Check valve on FDC must be a minimum of how far away from connection

A

4ft

79
Q

What is the lettering on a FDC sign

A

1” raised lettering, must say what it operates

80
Q

standard for standpipe systems

A

NFPA 14

81
Q

Standard for service mains

A

NFPA 24

82
Q

Standard for flow testing and marking of hydrants

A

NFPA 291

83
Q

Canadian pipe threads

A

CSA

84
Q

American pipe threads

A

NHS

85
Q

Stortz connection is connected with ____ turn

A

1/4” turn

86
Q

Dry hydrant can have what fittings

A

2- 45s or 1- 90

87
Q

What kind of strainer is on the end of a dry hydrant

A

Basket strainer

88
Q

Depending on municipalities, how long is dry hydrant piping generally limited too

A

25 feet

89
Q

Flush hydrants are usually located at

A

Air ports

90
Q

Pull station for semi automatic system is to be located how far from hose valve

A

3 feet

91
Q

2-1/2” hose lines are only ever to be used by

A

Fire department personal

92
Q

Standard cabinet size is

A

30x30x9

93
Q

Gauges must be what size

A

1/4”

94
Q

Scale for gauges must have

A

2x the pressure working against it

95
Q

Auto dry standpipe systems can be more then 750 gal if

A

water delivery time of 3 minutes can be met

96
Q

Pressure regulator can be omitted if a the air compressor is

A

5.5 cubic feet air compressor

97
Q

Paddle flow max velocity and gal to operate

A

18’ per second - 10 gpm

98
Q

High rises can only use what systems

A

Auto and semi auto

99
Q

Class 2 systems do not require

A

Protection from fire damage

100
Q

Pipe pitch for dry standpipe and dry standpipe in refrigerated areas

A
  • 1/4” per 10’
  • 1/2” per 10’
101
Q

If hose connections are not in stairwells, what must be added

A

A sign to show location of standpipe valves

102
Q

Letters on standpipe sign must be

A

2-1/2” big and red lettering

103
Q

If hose is less then 1-1/2” on class 2 the distance of cabinets must be

A

120ft and non collapsible

104
Q

Max static pressure at 2-1/2” outlet

A

175psi

105
Q

What type of PRV’s do 1-1/2 and 2-1/2 use

A

1-1/2 = pressure RESTRICTING
2-1/2 = pressure REDUCING