4. Water And Water Supply

Question 1

At any scene you will obtain water from one of two means

Answer 1

Pressurized systems

Static water source

Question 2

Water is known as the__

Answer 2

Universal solvent

Question 3

Water weighs

Answer 3

8.34

Question 4

The amount of particular matter suspended in water is known as

Answer 4

Turbidity

Question 5

A municipal water system consist of three components

Answer 5

The water source
The treatment plant
The distribution system

Question 6

Hydrant minimum operating pressure

Answer 6

20 psi

Question 7

underground water mains

Answer 7

Primary feeders
secondary feeders
distributors

Question 8

Water pressure __ psi

Answer 8

0.434 psi

Question 9

Locations of hydrants
__ ft apart in residential area
__ ft apart in high valued commercial and industrial areas

Answer 9

500 ft

300 ft

Question 10

Less than 500 GPM

Answer 10

Class C

Red

Question 11

500-999 gpm

Answer 11

Class B

Orange

Question 12

1000-1499 gpm

Answer 12

Class A

green

Question 13

1500 gpm and higher

Answer 13

Class AA

light blue

Question 14

NFPA 291 requires a minimum of ___inches from the center of the hose outlet to the finish grade

Answer 14

8 inch

Question 15

What allows water to flow, puddle, and remain together even after leaving the nozzle

Answer 15

Surface tension

Question 16

There are ___ principles of fluid pressure

Answer 16

6

Question 17

NFPA 291 recommends that fire hydrants be color-coded to indicate the water flow available from each hydrant at ___ PSI

Answer 17

20 psi

Question 18

What is the pressure that remains in the system when water is flowing

Answer 18

Residual