Preview Questions Wastewater Treatment Engineer | Role Specific Skill

Question 1: What is the effect of an overload of organic matter in the wastewater treatment system?

Which action should you take?

Choose only one option

It improves the efficiency of the secondary treatment process

It can lead to an increased biochemical oxygen demand (BOD) and system inefficiency

It decreases the need for aeration and mixing

It improves the flocculation process

Question 2: What does the term 'sludge age' refer to in wastewater treatment?

Which action should you take?

Choose only one option

The time sludge is allowed to settle in a tank

The time taken for sludge to decompose

The duration microorganisms remain in the treatment system

The volume of sludge generated per unit of wastewater

Question 3: Which environmental factor is most commonly evaluated during the EIA process of wastewater treatment plants?

Which action should you take?

Choose only one option

Air quality

Water quality

Biodiversity conservation

Noise pollution

Question 4: What is the optimal range for pH in a wastewater treatment system to support biological nutrient removal (BNR)?

Which action should you take?

Choose only one option

7.5 - 8.5

8.5 - 9.5

6.5 - 7.5

4.5 - 5.5

Question 5: When conducting an EIA for wastewater discharge into a water body, which factor is most critical to assess?

Which action should you take?

Choose only one option

The size of the wastewater treatment plant

The public perception of the wastewater treatment facility

The potential impact on water quality and aquatic life

The cost of constructing outflow pipelines

Question 6: What does a high concentration of total suspended solids (TSS) in effluent indicate?

Which action should you take?

Choose only one option

Excessive biological activity

Overloaded treatment plant

Good removal of organic matter

Poor filtration efficiency