Cheat Sheet 1 (F) Flashcards
A hydrant with a flow rate of 1500 gpm should be what color
Blue
Can a butterfly valve be used for throttling
Yes
What is the difference between groundwater and surface water contamination
Ground water takes longer to recover from contamination
What happens when metals are connected
Galvanic action will occur
If pipelines are not restrained thrust blocks can be used where
Every bend and transition
What’s happens to friction loss in a pipe if velocity in a pipe increases
It increases
What is the minimum time water must be motionless prior to first draw lead samples
6 hours
A hydrants residual pressure is always ? Blank ? Then it’s static pressure
Lower
What causes milky water
Entrained (trapped) air
Which agency regulates water distribution systems
EPA (FDEP in Florida)
