Texas Environmental Health Specialist
Practice Exam Questions And Correct
Answers (Verified Answers) Plus
Rationales |2026 Q&A | Instant
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1. Which agency is primarily responsible for environmental health
regulation in Texas?
A. Texas Commission on Environmental Quality (TCEQ)
B. Environmental Protection Agency (EPA)
C. Texas Department of State Health Services (DSHS)
D. Texas Water Development Board (TWDB)
DSHS regulates environmental health services at the state level, including
food safety, vector control, and sanitation.
2. What is the maximum allowable contaminant level for nitrate in
drinking water as per EPA standards?
A. 5 mg/L
B. 10 mg/L
C. 15 mg/L
D. 25 mg/L
,The EPA has set the Maximum Contaminant Level (MCL) for nitrate at 10
mg/L as nitrogen to protect infants from methemoglobinemia.
3. Which of the following best describes the term "vector" in
environmental health?
A. A radioactive contaminant
B. A pesticide used to kill insects
C. An organism that transmits disease
D. A microbial agent
A vector is any organism, such as a mosquito or tick, that transmits
pathogens from one host to another.
4. The best method for preventing foodborne illness in restaurants is:
A. Freezing foods
B. Washing produce
C. Maintaining proper food temperatures
D. Using gloves
Maintaining proper hot and cold holding temperatures is the most
effective way to prevent bacterial growth in food.
5. Which federal act governs safe drinking water standards?
A. Clean Water Act
B. Safe Drinking Water Act
C. Resource Conservation and Recovery Act
D. Comprehensive Environmental Response Act
The Safe Drinking Water Act (SDWA) sets standards for drinking water
quality and oversees states and water suppliers.
6. Which of the following is the most effective way to eliminate
cockroach infestations?
, A. Spraying with air freshener
B. Burning infested areas
C. Removing food, water, and shelter sources
D. Keeping windows open
Integrated pest management emphasizes removing access to food, water,
and shelter to control pests like cockroaches.
7. A septic system must be inspected:
A. Once every ten years
B. Only when problems occur
C. Regularly as per local codes or every 3-5 years
D. Only during property sales
Regular inspection of septic systems helps prevent failures and protects
public health.
8. What type of fire extinguisher should be used on grease fires?
A. Class A
B. Class K
C. Class C
D. Class B
Class K extinguishers are specifically designed for kitchen fires involving
cooking oils and fats.
9. A major function of environmental health professionals is:
A. Conducting surgeries
B. Enforcing health codes
C. Writing environmental novels
D. Selling environmental products
Environmental health specialists enforce public health and safety
regulations and inspect facilities for compliance.
Practice Exam Questions And Correct
Answers (Verified Answers) Plus
Rationales |2026 Q&A | Instant
Download Pdf
1. Which agency is primarily responsible for environmental health
regulation in Texas?
A. Texas Commission on Environmental Quality (TCEQ)
B. Environmental Protection Agency (EPA)
C. Texas Department of State Health Services (DSHS)
D. Texas Water Development Board (TWDB)
DSHS regulates environmental health services at the state level, including
food safety, vector control, and sanitation.
2. What is the maximum allowable contaminant level for nitrate in
drinking water as per EPA standards?
A. 5 mg/L
B. 10 mg/L
C. 15 mg/L
D. 25 mg/L
,The EPA has set the Maximum Contaminant Level (MCL) for nitrate at 10
mg/L as nitrogen to protect infants from methemoglobinemia.
3. Which of the following best describes the term "vector" in
environmental health?
A. A radioactive contaminant
B. A pesticide used to kill insects
C. An organism that transmits disease
D. A microbial agent
A vector is any organism, such as a mosquito or tick, that transmits
pathogens from one host to another.
4. The best method for preventing foodborne illness in restaurants is:
A. Freezing foods
B. Washing produce
C. Maintaining proper food temperatures
D. Using gloves
Maintaining proper hot and cold holding temperatures is the most
effective way to prevent bacterial growth in food.
5. Which federal act governs safe drinking water standards?
A. Clean Water Act
B. Safe Drinking Water Act
C. Resource Conservation and Recovery Act
D. Comprehensive Environmental Response Act
The Safe Drinking Water Act (SDWA) sets standards for drinking water
quality and oversees states and water suppliers.
6. Which of the following is the most effective way to eliminate
cockroach infestations?
, A. Spraying with air freshener
B. Burning infested areas
C. Removing food, water, and shelter sources
D. Keeping windows open
Integrated pest management emphasizes removing access to food, water,
and shelter to control pests like cockroaches.
7. A septic system must be inspected:
A. Once every ten years
B. Only when problems occur
C. Regularly as per local codes or every 3-5 years
D. Only during property sales
Regular inspection of septic systems helps prevent failures and protects
public health.
8. What type of fire extinguisher should be used on grease fires?
A. Class A
B. Class K
C. Class C
D. Class B
Class K extinguishers are specifically designed for kitchen fires involving
cooking oils and fats.
9. A major function of environmental health professionals is:
A. Conducting surgeries
B. Enforcing health codes
C. Writing environmental novels
D. Selling environmental products
Environmental health specialists enforce public health and safety
regulations and inspect facilities for compliance.
