Fire-Water Supply

Front 1

List the parts of the water distribution system

Back 1

primary feeders, secondary feeders, distributors, dead-end hydrants, and circulating feed or looped hydrant.

Front 2

Define Primary Feeders

Back 2

are large/huge pipes that convey large quantities of water for distribution to smaller mains.

Front 3

Define Secondary Feeders

Back 3

are intermediate-sized pipes within the loop of primary feeders that connect the flow to distributors.

Front 4

Define Distributors

Back 4

are smaller mains serving hydrants and blocks of communities.

Front 5

Define Dead-end hydrant

Back 5

is a hydrant that only receives water from one direction. It will give out less gpm.

Front 6

Define Circulating or looped hydrant

Back 6

hydrant that receive water from two or more distributions

Front 7

The different pipe sizes are

Back 7

residential 6", business 8" (cross connect with main every 600 feet, and industrial areas are 12".

Front 8

The types of water main valves

Back 8

indicating and non-indicating

Front 9

Define Indicating vales

Back 9

visually show if valve is open or close, which include post indicator and Outside screw and yoke valve.

Front 10

Define Non-Indicating valves

Back 10

are usually buried or in a manhole, and require special wrenches to open and close. The valves may be gated or butterfly.

Front 11

Define Static pressure

Back 11

is stored potential energy available to force water through pipes or hose. Also the normal pressure within a system before a hydrant is open or being used else where. This is why it is rarely found.

Front 12

Define Normal operating pressure

Back 12

is pressure on a water system during normal use demands.

Front 13

Define Residual pressure

Back 13

is pressure left in a water system at a location when water is flowing.

Front 14

Define Flow pressure

Back 14

is forward pressure at a discharge opening.

Front 15

What are the two types of hydrants?

Back 15

Wet-barrel, and dry barrel

Front 16

Define Dry-barrel hydrants

Back 16

are hydrants in areas when freezing occur. The hydrant is long with a pipe that has a valve at the bottom that holds the water below ground and the freeze line. The water above the valve drains in a small hole at the bottom of the hydrant.
» Make sure to completely open a dry and close the dry hydrant.

Front 17

Define Wet-barrel

Back 17

is used in areas where freezing is unlikely, and are always filled with water.

Front 18

List some condition which reduce hydrant effectiveness

Back 18

including but not limited too obstructions around hydrants, discharge outlets facing the wrong direction, damage by traffic or vandalism, corrosion, improper use of hydrant (not opening fully during uses), and dry-barrel hydrants not draining and freezing.

Front 19

Define Forward lay

Back 19

is from the hydrant to the fire

Front 20

Define reverse lay

Back 20

is from the fire to the hydrant

Front 21

The apparatus and equipment necessary for a water shuttle

Back 21

are a water supply officer, fill site(s), equipment assignments, dump side, and a clear direction of travel.
a. Set up portable tanks in a diamond shape if space is an issue.
b. Position drain downhill
c. Set up siphoning devices.
d. And basically watch out and keep the trucks in order.

Front 22

List the steps to assemble and connect drafting equipment required for drafting from a static water supply.

Back 22

a. Find water source.
b. Park pumper near source.
c. Attach hard suction hose to intake on pumper.
d. Be sure that the strainer is attached to hose.
e. Be sure to make complete air tight connections.
f. Donot use a floating strainer, use a ladder to let the strainer rest on to reduce chances of damage.
g. Place strainer in water.
h. Prim the positive pressure until it indicates that a draft is successful.
i. If problems try to tighten connections with a rubber mallet.
j. If still not working the lift of the water may be to great to overcome.