Practice Exam Questions And Correct
Answers (Verified Answers) Plus Rationales
|2026 Q&A | Instant Download Pdf
1. What is the primary purpose of a brownfield remediation project?
A) Constructing residential buildings
B) Restoring contaminated land for safe reuse
C) Draining wetlands for agriculture
D) Expanding industrial zones
Rationale: The main goal of brownfield remediation is to clean
contaminated sites to make them safe for redevelopment or reuse.
2. Which federal law provides guidance for cleanup of brownfield sites?
A) Clean Water Act
B) Comprehensive Environmental Response, Compensation, and
Liability Act (CERCLA)
, C) Safe Drinking Water Act
D) Resource Conservation and Recovery Act
Rationale: CERCLA, also known as Superfund, governs cleanup of
hazardous substances at contaminated sites, including brownfields.
3. What is the first step in a typical brownfield remediation process?
A) Site redevelopment
B) Site assessment
C) Soil excavation
D) Waste disposal
Rationale: A site assessment identifies contaminants and risks before any
remediation activities begin.
4. Which type of assessment evaluates potential environmental
contamination from a property’s past uses?
A) Phase III Environmental Site Assessment
B) Phase I Environmental Site Assessment
C) Phase II Environmental Site Assessment
D) Baseline Ecological Assessment
Rationale: Phase I ESA involves historical research and site inspection to
determine potential contamination.
5. During Phase II ESA, which activity is commonly performed?
A) Zoning review
B) Soil and groundwater sampling
, C) Property appraisal
D) Construction planning
Rationale: Phase II ESA involves collecting samples to confirm the presence
and extent of contamination.
6. Which contaminant is commonly associated with dry cleaning
operations?
A) Lead
B) Perchloroethylene (PCE)
C) Benzene
D) Arsenic
Rationale: PCE is a common solvent used in dry cleaning and is a frequent
groundwater contaminant at brownfields.
7. What is the term for the natural breakdown of contaminants by
microorganisms?
A) Filtration
B) Neutralization
C) Biodegradation
D) Adsorption
Rationale: Biodegradation is the microbial process that reduces
contaminant concentration naturally.
8. Which soil remediation technique involves mixing contaminated soil
with clean soil to dilute contaminants?
, A) Soil vapor extraction
B) Thermal desorption
C) Soil blending
D) Phytoremediation
Rationale: Soil blending dilutes contaminants by physically mixing them
with clean soil.
9. What does LNAPL stand for?
A) Light Non-Aqueous Phase Liquid
B) Light Non-Aqueous Phase Liquid
C) Low Non-Active Pollutant Level
D) Liquid Neutralizing Agricultural Product
Rationale: LNAPL refers to hydrocarbons that are less dense than water
and float on the water table.
10. Which protective equipment is most appropriate when handling
volatile organic compounds (VOCs)?
A) Ear plugs
B) Respirator with organic vapor cartridges
C) Safety shoes
D) Welding mask
Rationale: VOCs are inhalation hazards; respirators with appropriate
cartridges protect the technician.