Water Treatment Practice Quiz

What is the minimum water system demand?

• 200 gallons per day, 5 gallons per 10 minutes

• 150 gallons per day, 5 gallons per 10 minutes

• 100 gallons per day, 10 gallons per 10 minutes

• 300 gallons per day, 10 gallons per 10 minutes

What is friction head?

• Direct, strong pressure when water flows

• Loss of pressure when water flows

• Pressure increases when water flows

What is the ratio of psi/ feet of head?

• 1 psi = 3.3' of head

• 1 psi = 1.3' of head

• 1 psi = 2.9' of head

• 1 psi = 2.3' of head

Who is responsible for permits for well construction?

• Owner/agent

• Well company

• The county

• The state

What is a Class III well?

• A public well used for a small business

• A private well use for drinking water.

• A public well used for many businesses.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

What is the minimum annular space?

• Bored wells - 3" each side

  Cased wells - 1.5" each side

• Bored wells - 6" each side

  Cased wells - 2.5" each side

• Bored wells - 1" each side

  Cased wells - 4.5" each side

• Bored wells - 1.5" each side

  Cased wells - 3" each side

What is a de-watering well?

• A well kept in operation for 60 days or less for the sole purpose of lowering the water table.

• A well kept in operation for 100 days or less for the sole purpose of increasing the water table.

• A well kept in operation for 160 days or less for the sole purpose of lowering the water table.

Tags

NGSS.MS-ESS2-4

What increases friction loss? Choose all answers.

• Decreased pressure

• Flow rate

• Fittings

• Fixings

What are two common methods used when sizing residential systems?

• Fixture count

• Water count

• 3 minute pressure count

• 7 minute peak demand

What is an aquatard?

• A layer of rock that is impermeable and does not allow the flow of groundwater

• A layer of rock that does allow the flow of groundwater

• A type of fish found in underground rivers
• A method of testing water quality

Tags

NGSS.MS-ESS3-1