1 of 92
Term
Where are DBP (disinfection byproducts) samples normally taken?
Give this one a try later!
In household plumbing In the clearwell
Into household plumbing In the distribution system
Don't know?
2 of 92
Term
The soil removed from a trench is normally placed 2 to 5 feet from
the edge of the trench. Why?
To provide a walkway
,To prevent it from falling into trench
To prevent caving in of trench
All of the above
Give this one a try later!
165 degrees Roadway conditions
Human Health All of the above
Don't know?
3 of 92
Term
Once you have barely opened a confined space and tested the
oxygen level, what is the next step?
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Leave the room Be trained
Record the results Exit the building
Don't know?
4 of 92
,Term
Which type of hydrant has no main valve but has a separate valve for
each nozzle outlet?
Give this one a try later!
Wet Barrel Dry Barrel
Regulator Breakaway
Don't know?
5 of 92
Term
What advantage does using chloramines as a disinfectant have over
free chlorine?
Give this one a try later!
Need to protect source against
All of the Above
contamination
Increased turbidity Less chance of THMs
Don't know?
, 6 of 92
Term
What is the most important reason the water utilities maintain a
continuous positive water pressure at all times?
Give this one a try later!
To enhance water taste and odor To stabilize water temperature
To eliminate contamination of
To increase water flow efficiency
the water system
Don't know?
7 of 92
Term
What chemical method can a utility use to disinfect a water supply so
it is safe to drink?
Give this one a try later!
Ammonia, citric acid, hydrogen Magnesium sulfate, copper sulfate,
peroxide iodine
Sodium hypochlorite, calcium Fluoride, chlorine dioxide,
hypochlorite, ozone potassium permanganate
Term
Where are DBP (disinfection byproducts) samples normally taken?
Give this one a try later!
In household plumbing In the clearwell
Into household plumbing In the distribution system
Don't know?
2 of 92
Term
The soil removed from a trench is normally placed 2 to 5 feet from
the edge of the trench. Why?
To provide a walkway
,To prevent it from falling into trench
To prevent caving in of trench
All of the above
Give this one a try later!
165 degrees Roadway conditions
Human Health All of the above
Don't know?
3 of 92
Term
Once you have barely opened a confined space and tested the
oxygen level, what is the next step?
Give this one a try later!
Leave the room Be trained
Record the results Exit the building
Don't know?
4 of 92
,Term
Which type of hydrant has no main valve but has a separate valve for
each nozzle outlet?
Give this one a try later!
Wet Barrel Dry Barrel
Regulator Breakaway
Don't know?
5 of 92
Term
What advantage does using chloramines as a disinfectant have over
free chlorine?
Give this one a try later!
Need to protect source against
All of the Above
contamination
Increased turbidity Less chance of THMs
Don't know?
, 6 of 92
Term
What is the most important reason the water utilities maintain a
continuous positive water pressure at all times?
Give this one a try later!
To enhance water taste and odor To stabilize water temperature
To eliminate contamination of
To increase water flow efficiency
the water system
Don't know?
7 of 92
Term
What chemical method can a utility use to disinfect a water supply so
it is safe to drink?
Give this one a try later!
Ammonia, citric acid, hydrogen Magnesium sulfate, copper sulfate,
peroxide iodine
Sodium hypochlorite, calcium Fluoride, chlorine dioxide,
hypochlorite, ozone potassium permanganate
