Energy and Utilities Water and Wastewater Utilities

Question 1

Which federal law sets standards for drinking water quality in the United States?

Accepted Answer

Safe Drinking Water Act (SDWA)

Answer

Clean Water Act

Answer

Resource Conservation and Recovery Act

Answer

National Environmental Policy Act

Question 2

What is the primary purpose of chlorination in drinking water treatment?

Accepted Answer

Disinfecting water to kill pathogens

Answer

Removing heavy metals

Answer

Softening hard water

Answer

Removing turbidity

Question 3

What does 'turbidity' measure in water quality assessment?

Accepted Answer

Cloudiness or haziness caused by suspended particles

Answer

Chemical oxygen demand

Answer

Temperature variation in water

Answer

pH level of water

Question 4

What is a 'combined sewer overflow' (CSO)?

Accepted Answer

The discharge of untreated sewage and stormwater during heavy rain from combined sewer systems

Answer

A system that combines drinking water and wastewater pipes

Answer

An advanced wastewater treatment process

Answer

A method to reuse treated wastewater

Question 5

What treatment process removes dissolved minerals like calcium and magnesium from water?

Accepted Answer

Water softening (ion exchange)

Answer

Chlorination

Answer

Sedimentation

Answer

UV disinfection

Question 6

What is the purpose of the Clean Water Act Section 404 program?

Accepted Answer

Regulating discharge of dredged or fill material into waters of the US, including wetlands

Answer

Setting drinking water standards

Answer

Requiring wastewater plants to meet effluent limits

Answer

Monitoring groundwater quality