Water meters
Laboratory stuff
Chemical formulas
Safety
Even more math!
100

This is a type of mechanical meter used when flows can vary widely.

What is a compound meter?

100

35 degrees Celsius +- 0.5, for 24 hours.

What is the proper incubation of Total Coliform?

100

H2SO4

What is sulfuric acid?

100

EAP.

What is an "Emergency Action Plan"?

100

This is the amount of pure chlorine added to a water supply with a flow of 0.8 MGD and a dose of 4.9 mg/L of 65% calcium hypochlorite.

What is 21.25 pounds of pure chlorine?

200

Piston and Nutating

What are types of positive displacement meters.

200

105 degrees Celsius for a minimum of one hour.

What is the proper drying time and temp for Total Suspended Solids?

200

CaCO3

What is calcium carbonate?

200

Mild, moderate, severe, profound.

What are the four categories of hearing loss?

200

This is the WOR (in gpd/ft) of a rectangular clarifier 60' x 50', with a flow of 625 gpm. *The weir is on the perimeter of the tank.*

What is 4,090.9 gpd/ft?

300

Cost savings, conservation, accountability.

What are good reasons to use water meters?

300

It is the red chemical used in the fluoride test.

What is SPADNS?

300

H2S

What is Hydrogen sulfide?

300

This is the path that electricity naturally seeks.

What is "to ground"?

300

This is the well drawdown of a well if the static water level is 92.6 feet and a pumping level of 129.4 feet.

What is 36.8 feet?

400

This is a type of meter that uses sound impulses to determine flow.

What is an (ultra)sonic meter?

400

It is the maximum amount of mass that a sample can change in a TSS or TS test between weighings.

What is 0.0005 g, or 0.5 mg?

400

NaCl

What is sodium chloride, or table salt?

400

This is the highest step you can use safely, according to OSHA, on a step ladder?

What is the second step from the top?

400

This is the flowrate, in GPM, of water into a tank 8' in diameter that rises 2 inches in one minute.

What is 62.6 GPM?

500

This meter measures flow because the water passing through the meter induces a small amount of electrical current.

What is a magnetic meter?

500

It is a device that can test for multiple analytes because it can look for very specific wavelengths of light.

What is a spectrophotometer?
500

NH3

What is ammonia?

500

Trench box, shoring, proper slope

What are proper ways to stay safe in trenches?

500

This is the gallons of water in a pipe, 4" in diameter, one mile long.

What is 3,444 gallons?