Firefighter 1 Final

Front 1

What are the four fundamental components of a water system?

Back 1

-Source of water supply
-Means of moving water
-Water processing/treatment facilities
-Water distribution system, incl. storage

Front 2

What are the three methods of moving water in a system?

Back 2

-Direct pumping system
-Gravity system
-Combination system

Front 3

A fire hydrant that receives water from only one direction is a _______.

Back 3

Dead-end hydrant.

Front 4

A fire hydrant that receives water from two or more directions is a _______.

Back 4

Circulating feed or looped line.

Front 5

A distribution system that provides circulating feed from several mains constitutes a _______.

Back 5

Grid system.

Front 6

A grid system consists of what three components?

Back 6

-Primary feeders
-Secondary feeders
-Distributors

Front 7

Valves for water systems are broadly divided into what two types?

Back 7

Indicating and Nonindicating

Front 8

Name two common indicator valves:

Back 8

-Post Indicator Valv (PIV)
-Outside Screw & Yoke (OS&Y)

Front 9

What are the four kinds of water pressure, and how is pressure measured?

Back 9

-Static pressure
-Normal operating pressure
-Residual pressure
-Flow pressure
-Pressure = force per unit area

Front 10

Define 'static pressure'.

Back 10

Non-flowing water. Potential energy available to force water through pipe, hose, etc. Also defined as normal pressure existing in system prior to flow hydrant being opened.

Front 11

Define 'normal operating pressure'.

Back 11

Pressure in a water system during periods of normal consumption demand (average of total amount used per day per anum).

Front 12

Define 'residual pressure'.

Back 12

Pressure left in a distribution system when flowing water, i.e., that part of the total available pressure not used to overcome friction/gravity.

Front 13

What are the two types of hydrants?

Back 13

-Dry-barrel
-Wet-barrel

Front 14

Hydrant color codes: name the four colors and their corresponding GPM rates.

Back 14

-Light Blue: At least 1,500 gpm
-Green: 1,000-1,499 gpm
-Orange: 500-999 gpm
-Red: Less than 500 gpm

Front 15

Define 'fire stream'.

Back 15

A stream of water or other extinguishing agent after it leaves a nozzle until it reaches the desired point.

Front 16

At 212 degrees (F), water expands how many times its original volume?

Back 16

1700

Front 17

Fire streams are classified into what three sizes?

Back 17

-Low-volume (<40 gpm)
-Handline (1.5-3inch hose, 40-350 gpm)
-Master (>350 gpm)

Front 18

What are the three patters of fire stream?

Back 18

-Solid
-Fog
-Broken

Front 19

What are the three ways in which foam extinguishes/prevents fire?

Back 19

-Separating (fuel and fire)
-Cooling (fuel and surfaces)
-Suppressing (smothering - prevents release of flammable vapors)

Front 20

Foam is especially effective on the two basic categories of flammable liquids, which are:

Back 20

-Hydrocarbon fuels
-Polar solvents