Preview Questions Wastewater Treatment Engineer | Role Specific Skill

Question 1: Which of the following is the most significant environmental concern when discharging treated effluent into a freshwater body?

Which action should you take?

Choose only one option

The potential for increased dissolved oxygen in the water

The presence of dissolved salts that can affect soil quality

The potential for eutrophication due to excess nitrogen and phosphorus

The potential for bioaccumulation of heavy metals

Question 2: What is the primary role of a mitigation plan in the EIA process?

Which action should you take?

Choose only one option

To determine the site location

To determine the operational efficiency of the plant

To reduce or eliminate the negative environmental impacts of the project

To increase the economic feasibility of the project

Question 3: What is the purpose of effluent toxicity testing under the Clean Water Act (CWA)?

Which action should you take?

Choose only one option

To ensure that discharged wastewater does not harm aquatic life

To identify ways to increase the plant's operational capacity

To determine the cost-effectiveness of the treatment system

To evaluate the effectiveness of the treatment chemicals used

Question 4: Which type of impact is most difficult to quantify during an EIA for a wastewater treatment plant?

Which action should you take?

Choose only one option

Airborne particulate matter

Changes to local hydrology

Noise pollution

Effects on local human health

Question 5: How do you manage the compliance of a wastewater treatment facility with its industrial pretreatment program?

Which action should you take?

Choose only one option

By assuming industrial facilities will comply without oversight

By monitoring industrial discharges, implementing effective pretreatment measures, and ensuring compliance with discharge limits

By only checking pretreatment systems during annual inspections

By ignoring industrial discharges and focusing only on municipal waste

Question 6: How does ultraviolet (UV) disinfection of wastewater compare to traditional chlorine-based methods?

Which action should you take?

Choose only one option

UV disinfection increases the total suspended solids in the water

UV disinfection does not introduce chemical residues into the water

UV disinfection requires high doses of chemicals for efficiency

UV disinfection is less effective at killing bacteria