NYC Environmental Engineer Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. Which of the following is the primary purpose of the Clean Water Act
(CWA)?
A. Regulate air emissions from vehicles
B. Promote renewable energy sources
C. Protect surface water quality
D. Control hazardous waste disposal
_The Clean Water Act aims to maintain and restore the chemical,
physical, and biological integrity of the nation’s waters.
2. The term “NPDES permit” is associated with:
A. Air emissions control
B. Discharge of pollutants into waters of the United States
C. Solid waste disposal
, D. Occupational safety
_NPDES (National Pollutant Discharge Elimination System) permits
regulate point source discharges into surface waters.
3. What is the main mechanism for controlling greenhouse gas emissions
under the Kyoto Protocol?
A. Carbon offsetting
B. Emission reduction targets
C. Water quality standards
D. Hazardous waste tracking
_The Kyoto Protocol establishes binding emission reduction targets
for participating countries to limit greenhouse gases.
4. Which of the following best describes a point source of pollution?
A. Pollution from agriculture runoff
B. Pollution from urban stormwater
C. Pollution from a single, identifiable source
D. Pollution from atmospheric deposition
_A point source is a distinct, confined, and identifiable source of
pollution, like a factory discharge pipe.
5. Biochemical oxygen demand (BOD) is a measure of:
A. Oxygen concentration in air
B. Organic matter in water requiring oxygen for decomposition
C. Heavy metal concentration
D. Pathogen presence in water
, _BOD measures the amount of dissolved oxygen needed by
microorganisms to decompose organic matter in water.
6. Which of the following is the most common primary treatment
method in wastewater plants?
A. Biological nutrient removal
B. Advanced oxidation
C. Sedimentation
D. Membrane filtration
_Primary treatment typically involves sedimentation to remove
settleable solids from wastewater.
7. The Safe Drinking Water Act (SDWA) primarily regulates:
A. Industrial wastewater discharges
B. Public drinking water supplies
C. Agricultural runoff
D. Air quality standards
_The SDWA establishes standards to ensure safe public drinking
water for all communities.
8. What is the most effective method for controlling soil erosion on
construction sites?
A. Using chemical fertilizers
B. Silt fences and vegetation stabilization
C. Regular watering of the site
D. Paving all surfaces immediately
, _Silt fences and vegetation help trap sediments and stabilize soil to
prevent erosion.
9. Which gas contributes most to stratospheric ozone depletion?
A. Carbon dioxide
B. Methane
C. Chlorofluorocarbons (CFCs)
D. Nitrous oxide
_CFCs release chlorine atoms in the stratosphere, which catalytically
destroy ozone molecules.
10. The primary purpose of an Environmental Impact Statement
(EIS) is to:
A. Determine water quality
B. Evaluate potential environmental effects of a proposed project
C. Control air emissions
D. Assess workplace hazards
_An EIS assesses environmental impacts before federal actions are
taken to inform decision-making.
11. Which of the following best describes leachate?
A. Surface runoff containing fertilizers
B. Liquid that drains from a landfill
C. Contaminated groundwater
D. Treated sewage effluent
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. Which of the following is the primary purpose of the Clean Water Act
(CWA)?
A. Regulate air emissions from vehicles
B. Promote renewable energy sources
C. Protect surface water quality
D. Control hazardous waste disposal
_The Clean Water Act aims to maintain and restore the chemical,
physical, and biological integrity of the nation’s waters.
2. The term “NPDES permit” is associated with:
A. Air emissions control
B. Discharge of pollutants into waters of the United States
C. Solid waste disposal
, D. Occupational safety
_NPDES (National Pollutant Discharge Elimination System) permits
regulate point source discharges into surface waters.
3. What is the main mechanism for controlling greenhouse gas emissions
under the Kyoto Protocol?
A. Carbon offsetting
B. Emission reduction targets
C. Water quality standards
D. Hazardous waste tracking
_The Kyoto Protocol establishes binding emission reduction targets
for participating countries to limit greenhouse gases.
4. Which of the following best describes a point source of pollution?
A. Pollution from agriculture runoff
B. Pollution from urban stormwater
C. Pollution from a single, identifiable source
D. Pollution from atmospheric deposition
_A point source is a distinct, confined, and identifiable source of
pollution, like a factory discharge pipe.
5. Biochemical oxygen demand (BOD) is a measure of:
A. Oxygen concentration in air
B. Organic matter in water requiring oxygen for decomposition
C. Heavy metal concentration
D. Pathogen presence in water
, _BOD measures the amount of dissolved oxygen needed by
microorganisms to decompose organic matter in water.
6. Which of the following is the most common primary treatment
method in wastewater plants?
A. Biological nutrient removal
B. Advanced oxidation
C. Sedimentation
D. Membrane filtration
_Primary treatment typically involves sedimentation to remove
settleable solids from wastewater.
7. The Safe Drinking Water Act (SDWA) primarily regulates:
A. Industrial wastewater discharges
B. Public drinking water supplies
C. Agricultural runoff
D. Air quality standards
_The SDWA establishes standards to ensure safe public drinking
water for all communities.
8. What is the most effective method for controlling soil erosion on
construction sites?
A. Using chemical fertilizers
B. Silt fences and vegetation stabilization
C. Regular watering of the site
D. Paving all surfaces immediately
, _Silt fences and vegetation help trap sediments and stabilize soil to
prevent erosion.
9. Which gas contributes most to stratospheric ozone depletion?
A. Carbon dioxide
B. Methane
C. Chlorofluorocarbons (CFCs)
D. Nitrous oxide
_CFCs release chlorine atoms in the stratosphere, which catalytically
destroy ozone molecules.
10. The primary purpose of an Environmental Impact Statement
(EIS) is to:
A. Determine water quality
B. Evaluate potential environmental effects of a proposed project
C. Control air emissions
D. Assess workplace hazards
_An EIS assesses environmental impacts before federal actions are
taken to inform decision-making.
11. Which of the following best describes leachate?
A. Surface runoff containing fertilizers
B. Liquid that drains from a landfill
C. Contaminated groundwater
D. Treated sewage effluent
