Water Test Continued Flashcards
Act of laying pipe out for instillation
Stringing it out
Least expensive corrosion prevention method
Paint
Best way to inspect di pipe before instillation
Using a hammer to tap on pipe
Most common cause of construction related deaths
Lack or failure of sheeting and or shoring
Most human illness caused by drinking water system
Cross connections
What pump should never be started with out being primed
Centrifugal
Dead end water mains should be avoided to prevent what
Development of taste or odor problems
How often should fire hydrants be operated
Twice a year
What are blow off valves used for
Flush sediment and boi growth out of system
Type of hydrant with valve outlets
Wet Barrel
Mcl stands for
Maximum containment level
Federal agency that regulates
EPA
Where do you take water samples
At the water main
For large system how many bacteriological samples Should be taken
Dependent on the population
After digging hole what’s next step to tap a main
Cleaning pipe off
What is thrust block used for
Prevent pipe from separating
Advantage of using ductile iron over other Polly pipe
It can withhold bigger load
What would you use to repair small leak on water main without decreasing the pressure
Repair clamp
Definition of water hammer
Rapid increase or decrease of water flow
On dry barrel fire hydrant where is valve located
Base
