4/2 Hydrants Flashcards
Hydrants shall be identified on reports and records as follows:
S.F.H-
D.F.H-
S.S.F.H-
S.F.H- single fh 2-1/2 s.f.h and 4” shh
D.F.H- double fh 2 1/2x 4 and 4x4
S.S.F.H-sub surface fh
Hydrant symbols: x6
Open circle: 2-1/2”single or built up Half circle- 4” single or built up Full circle: 2-1/2” x 4” or double 4” S - subsurface Square - private Main size
Station Commanders shall determine that hydrants with a static pressure over _____psi have tops painted red. Initial painting of tops shall be done by station members.
200
In the ______areas of the City, the blue reflectors are located on the street pavement to indicate all hydrant locations,
while in the _______areas the reflectors shall be used to indicate only mid-block hydrant locations, or hydrant locations that are obstructed from view.
Hillside
Flatland
The installation and replacement of hydrant reflectors shall be done by ___________.
Station personnel
Hydrants shall be opened and closed slowly to avoid __________
Water hammer
During non-emergency situations when a hydrant is found to be inoperative because of damage, obstruction, or is being used illegally, report the situation at once to the Construction Services – ___________by telephone
Hydrant access unit
Unless a different period of time has been specified, hydrants reported out of service, which have not been restored to service within 72 hours, shall be reported to the Construction Services - _________
Hydrant / access unit
Chief Officers or Station Commanders contemplating training activities requiring large GPM flows will notify the Construction Services - Hydrant/Access Unit at least ____ hours in advance
48
The maximum period of time between test periods shall be ____months. The time for testing will be determined by ________
Battalion commanders
Carefully remove all “_______” from the hydrant stem. No abrasive material is to be used on hydrant stems; do not apply any lubrication.
Verdigris
the _______ of valve stem shall be tightened if necessary to stop leak.
NOTE Do not tighten the packing nut on hydrants having an ______as packing.
Packing nut
“O” ring
Clean hydrant nipple with a _____ if necessary
Wire brush
Form F-____ (Fire Hydrant Test Record)
70
Those hydrants located in Station 86 and 91 hydrant district and shown on Department maps as “Hard Suction” hydrants are designed for _____ only
Drafting
A _____-inch diameter cap (usually painted ____) covers the gate valve
6in
Blue
Of the ______hydrants in the City, _____% will have the street shut off valve located within 15 feet of the hydrant.
56000
80
If the valve cannot be readily located or the gate valve is more than 15 feet from the hydrant, members are advised to call for a _____
DWP Response team
Fire hydrant gate valves may require ___to ____full turns to complete a shut down.
18-26
Although approximately ___% of all fire hydrant gate valves close in a clockwise direction, Firefighters must recognize those instances when a counterclockwise rotation is necessary to close the valve.
98
When notifying Metro of a sheared off fire hydrant, include the following information:
X3
- Fire hydrant location
- State if fire hydrant has been shut off
- The number of valves closed
