Engine 6 - Hydrants

Question 1

Smith Low Pressure:

Answer 1

Black barrel /silver bonnet

• 2 1/2 and 4 1/2 outlets
• number on barrel will indicate size of main
• white line under the number on the barrel indicates this hydrant is on a dead end main.

Dead end mains provide Less water

Question 2

Dresser Low Pressure :

Answer 2

• black barrel /silver bonnet
• 2 1/2” and 4 1/2” outlets
• Dresser will provide 10% to 15% GREATER DISCHARGE than Smith

Question 3

Eddy Hydrant:

Answer 3

• found in Jamaica Water Supply

- it opens and closes opposite regular hydrants

Question 4

High pressure hydrants?

Answer 4

being removed and use should be avoided

Question 5

35 foot Soft connection:

Answer 5

Yellow- 5 inch hose and 4 1/2” butts
FLAKE OUT prior to hooking up to hydrant
LARGEST WATER FLOW

Question 6

10 FOOT SMALL:

Answer 6

-3 1/2” hose with 4 1/2” BUTTS
-closer and more accurate positioning
-semi-rigid-can be BENT and connected…
When charged, will STRAIGHTEN

Question 7

10 FOOT hard :

Answer 7

-4 1/2” hose and 4 1/2” butts
-RIGID MATERIAL , very difficult to bend
DRAFTING

Question 8

50 foot length of 3 1/2” hose

Answer 8

Permits MOST FLEXIBILITY

LEAST WATER FLOW

Question 9

Hydra Shield :

Answer 9

threaded cap with 3 Indentations
wrench matches indentations
both 2 1/2” and 4 1/2” caps are provided with Hydra Shield

Question 10

Custodian Hydrant Guard:

Answer 10

free spinning cap
SPECIAL WRENCH (CUSTODIAN WRENCH) equipped with magnet
Custodian wrench used to operate Custodian guard and Hydra Shield caps

under NO CIRCUMSTANCES should this wrench be struck with axe, sledge hammer

Question 11

Installing HYDRANT PLUG—T BOLT:

Answer 11

• shut down hydrant and exam barrel for sharp objects and debris BEFORE inserting T-Bolt
• Maneuver T-Bolt through 4 1/2”opening into hydrant barrel
• maintain firm grip, prevent from dropping it
• place the threaded rod of the T-Bolt through the 2 1/2” opening and center it in the middle of the opening…non threaded end of T-bolt held inside in vertical position
• hold T Bolt firmly against the inside of the hydrant barrel with one hand and turn the handle onto the threaded end with other hand…Washer MUST BE ON OUTSIDE OF HYDRANT for plug to work correctly
• turn handle clockwise until tight

Question 12

Make sure hydrant is _____before attempting to remove any caps?

Answer 12

SHUT DOWN

Question 13

Yellow hydrants on parkways/expressways:

Answer 13

• shut down at CURB VALVE year round
• to use , MUST be turned on using CURB VALVE
• Assigned First Alarm Engines issued curb valve key
• for relocated units - LIST OF yellow hydrants and curb valve key located near HOUSEWATCH
• 18 TURNS to the right clockwise to OPEN FULLY (this valve should be fully opened before opening hydrant)
• do not force

Question 14

Red Air cock hydrants :

Answer 14

• 30 inch or greater mains

- PAINTED RED/EXCELLENT WATER SOURCE

Question 15

Red Satellite Water System Hydrant:

Answer 15

-TWIIN arrangement for SATELLITE UNITS
-Painted RED
Engine Companies should AVOID USE of these hydrants

Question 16

Each unit has been issued a CUSTODIAN WRENCH with ?

Answer 16

INDIVIDUAL SERIAL NUMBER

• If custodian wrench is broken, deliver to DIVISION of replacement by Tech Services
• Division has spare wrenches (3)
• Division will provide LOANER WRENCH, until a new one is secured from Tech Services
• LOST PROPERTY REPORT

Question 17

hydrant wye:

Answer 17

4 1/2”–(2) 3” male outlets (quarter turn ball valves )

2 1/2”– (2) 2 “ male outlets (quarter turn ball valves )