water distribution

Question 1

in a water distribution system, the corporation cock is located ____

Answer 1

at the water main

Question 2

compression repair clamps should never be used ____

Answer 2

underground

Question 3

a water and gas safety valve is designed to _____

Answer 3

shut off water and gas in the even of a leak

Question 4

a globe valve would be best described as a ____

Answer 4

throttling valve

Question 5

a _____ valve should be used when water is run to a sill cock or other appliance that may be subject to freezing

Answer 5

stop and waste

Question 6

using a sensitive microphone to find a leak is called ____

Answer 6

acoustic leak detection

Question 7

flared joints are expecially adapted for use when the piping is ____

Answer 7

subjected to periodic disassembly

Question 8

brazed joints are commonly used with _____

Answer 8

underground piping

Question 9

water piping should be labeled at ____ ‘ intervals

Answer 9

20’

Question 10

fire retardant gels are used for ____

Answer 10

providing heat barriers

Question 11

the main advantage of a butterfly valve is ____

Answer 11

its thin body

Question 12

a _____ is used to protect against damage due to the sudden opening and closing of a valve or fixture

Answer 12

water hammer arrester

Question 13

a pressure reducing valve _____

Answer 13

converts high or fluctuating pressure to low consistent pressure

Question 14

how water is circulated because it _____

Answer 14

provides instant hot water at the point of use

Question 15

a ____ is used to control operating water pressure in a well system

Answer 15

pressure tank

Question 16

an atmospheric vacuum breaker is designed for _____

Answer 16

low hazard back siphoning

Question 17

the #1 test port on a RPBA is located ____

Answer 17

before the #1 shut off valve

Question 18

graywater system piping must be marked or labeled using ____ coloring

Answer 18

purple

Question 19

a ____ valve is used to blend hot and cold water to create constant tempered water

Answer 19

thermostatic mixing valve

Question 20

when there is a cross connection with a high degree of hazard and back pressure, a _______ is used to protect the water system

Answer 20

RPBA

Question 21

water supply pumps should be inspected at least ____

Answer 21

once a year

Question 22

when lubricating a supply pump, a ____ type lubricant should be used

Answer 22

grease

Question 23

the best way to protect the potable water supply at the point of use is by using an _____

Answer 23

air gap