BE/B Eng Bachelor of Engineering Environmental Engineering 2

Question 1

In the US, which federal law primarily regulates the discharge of pollutants into navigable waters?

Accepted Answer

Clean Water Act (CWA)

Answer

The Clean Water Act (1972) establishes the framework for regulating pollutant discharges into US waters and sets water quality standards for surface waters.

Question 2

What is the primary purpose of activated sludge in wastewater treatment?

Accepted Answer

To use microorganisms to biologically degrade dissolved organic matter

Answer

The activated sludge process introduces air into wastewater mixed with a dense microbial community, enabling aerobic bacteria to metabolize and remove dissolved organic pollutants.

Question 3

What is the primary health risk associated with lead contamination in drinking water?

Accepted Answer

Neurological damage, especially in children

Answer

Lead is a potent neurotoxin; even low-level exposure causes irreversible cognitive and behavioral damage in children, affecting IQ, attention, and academic performance.

Question 4

Which renewable energy source generates electricity by harnessing the kinetic energy of wind?

Accepted Answer

Wind turbine

Answer

Wind turbines convert the kinetic energy of moving air into rotational mechanical energy, which drives a generator to produce electricity.

Question 5

In environmental impact assessment (EIA), what is the purpose of the scoping phase?

Accepted Answer

To identify the significant issues and potential impacts that should be studied in detail

Answer

Scoping defines the boundaries and focus of an EIA by identifying which environmental issues, alternatives, and impacts warrant detailed study, reducing unnecessary analysis.

BE/B Eng Bachelor of Engineering Practice Test

BE/B Eng Bachelor of Engineering Practice Test

BE/B Eng Bachelor of Engineering Environmental Engineering 2