Illinois Department of Public Health
Ultimate Exam
**Question 1. Which organ system is most sensitive to low-level lead exposure in
children under six?**
A) Cardiovascular system
B) Central nervous system
C) Respiratory system
D) Musculoskeletal system
Answer: B
Explanation: The developing CNS is highly vulnerable; even low BLLs can impair
cognition and behavior.
**Question 2. The CDC’s current reference value for an elevated blood lead level
(BLL) in children is:**
A) 2 µg/dL
B) 3 µg/dL
C) 5 µg/dL
D) 10 µg/dL
Answer: C
Explanation: In 2021 the CDC lowered the reference value to 5 µg/dL to identify
children at risk.
**Question 3. In Illinois, the “Level of Concern” for medical follow-up of an adult’s
BLL is:**
A) 5 µg/dL
B) 10 µg/dL
C) 15 µg/dL
, Illinois Department of Public Health
Ultimate Exam
D) 20 µg/dL
Answer: B
Explanation: Illinois adopts a 10 µg/dL threshold for adults for additional clinical
evaluation.
**Question 4. Which of the following is NOT a primary pathway for lead exposure
in pregnant women?**
A) Inhalation of lead dust
B) Transplacental transfer
C) Hand-to-mouth ingestion of contaminated soil
D) Consumption of lead-free bottled water
Answer: D
Explanation: Lead-free bottled water does not contribute to exposure; the other
three are recognized pathways.
**Question 5. Under the Illinois Lead Poisoning Prevention Act, a property owner
must provide a written notice to tenants within how many days after a lead-based
paint risk assessment?**
A) 5 days
B) 10 days
C) 30 days
D) 60 days
Answer: B
Explanation: The Act requires notification within 10 days of completing the risk
assessment.
, Illinois Department of Public Health
Ultimate Exam
**Question 6. The HUD Guidelines Chapter 7 primarily address which of the
following?**
A) Lead-based paint evaluation in privately owned homes
B) Lead-based paint evaluation in federally assisted housing
C) Soil remediation standards for lead
D) Water testing requirements for lead
Answer: B
Explanation: HUD Chapter 7 provides procedures for lead-based paint assessment
in federally assisted housing.
**Question 7. Title X of the Residential Lead-Based Paint Hazard Reduction Act
requires sellers to:**
A) Perform a full abatement before sale
B) Disclose known lead-based paint hazards to buyers
C) Provide a free lead-testing kit to buyers
D) Install HEPA vacuums in the home prior to closing
Answer: B
Explanation: Title X mandates disclosure of known lead-based paint hazards in
real-estate transactions.
**Question 8. OSHA’s permissible exposure limit (PEL) for lead in construction
is:**
A) 30 µg/m³ (airborne) averaged over 8 h
, Illinois Department of Public Health
Ultimate Exam
B) 50 µg/m³ (airborne) averaged over 8 h
C) 100 µg/m³ (airborne) averaged over 8 h
D) 150 µg/m³ (airborne) averaged over 8 h
Answer: B
Explanation: OSHA sets the PEL for lead at 50 µg/m³ time-weighted average for
construction workers.
**Question 9. Which personal protective equipment (PPE) is required when
performing lead-based paint removal by hand scraping?**
A) Disposable coveralls only
B) N-95 respirator only
C) Full-face respirator with P100 filter and disposable coveralls
D) Safety glasses and hard hat only
Answer: C
Explanation: Hand scraping can generate high dust; a full-face respirator with
P100 filtration and disposable coveralls protect both respiratory and skin
exposure.
**Question 10. X-ray fluorescence (XRF) analyzers detect lead in paint by
measuring:**
A) Gamma radiation emitted from lead atoms
B) Fluorescent X-rays produced when the sample is excited by an X-ray source
C) Infrared absorption of lead compounds
D) Electrical conductivity of the paint film
Ultimate Exam
**Question 1. Which organ system is most sensitive to low-level lead exposure in
children under six?**
A) Cardiovascular system
B) Central nervous system
C) Respiratory system
D) Musculoskeletal system
Answer: B
Explanation: The developing CNS is highly vulnerable; even low BLLs can impair
cognition and behavior.
**Question 2. The CDC’s current reference value for an elevated blood lead level
(BLL) in children is:**
A) 2 µg/dL
B) 3 µg/dL
C) 5 µg/dL
D) 10 µg/dL
Answer: C
Explanation: In 2021 the CDC lowered the reference value to 5 µg/dL to identify
children at risk.
**Question 3. In Illinois, the “Level of Concern” for medical follow-up of an adult’s
BLL is:**
A) 5 µg/dL
B) 10 µg/dL
C) 15 µg/dL
, Illinois Department of Public Health
Ultimate Exam
D) 20 µg/dL
Answer: B
Explanation: Illinois adopts a 10 µg/dL threshold for adults for additional clinical
evaluation.
**Question 4. Which of the following is NOT a primary pathway for lead exposure
in pregnant women?**
A) Inhalation of lead dust
B) Transplacental transfer
C) Hand-to-mouth ingestion of contaminated soil
D) Consumption of lead-free bottled water
Answer: D
Explanation: Lead-free bottled water does not contribute to exposure; the other
three are recognized pathways.
**Question 5. Under the Illinois Lead Poisoning Prevention Act, a property owner
must provide a written notice to tenants within how many days after a lead-based
paint risk assessment?**
A) 5 days
B) 10 days
C) 30 days
D) 60 days
Answer: B
Explanation: The Act requires notification within 10 days of completing the risk
assessment.
, Illinois Department of Public Health
Ultimate Exam
**Question 6. The HUD Guidelines Chapter 7 primarily address which of the
following?**
A) Lead-based paint evaluation in privately owned homes
B) Lead-based paint evaluation in federally assisted housing
C) Soil remediation standards for lead
D) Water testing requirements for lead
Answer: B
Explanation: HUD Chapter 7 provides procedures for lead-based paint assessment
in federally assisted housing.
**Question 7. Title X of the Residential Lead-Based Paint Hazard Reduction Act
requires sellers to:**
A) Perform a full abatement before sale
B) Disclose known lead-based paint hazards to buyers
C) Provide a free lead-testing kit to buyers
D) Install HEPA vacuums in the home prior to closing
Answer: B
Explanation: Title X mandates disclosure of known lead-based paint hazards in
real-estate transactions.
**Question 8. OSHA’s permissible exposure limit (PEL) for lead in construction
is:**
A) 30 µg/m³ (airborne) averaged over 8 h
, Illinois Department of Public Health
Ultimate Exam
B) 50 µg/m³ (airborne) averaged over 8 h
C) 100 µg/m³ (airborne) averaged over 8 h
D) 150 µg/m³ (airborne) averaged over 8 h
Answer: B
Explanation: OSHA sets the PEL for lead at 50 µg/m³ time-weighted average for
construction workers.
**Question 9. Which personal protective equipment (PPE) is required when
performing lead-based paint removal by hand scraping?**
A) Disposable coveralls only
B) N-95 respirator only
C) Full-face respirator with P100 filter and disposable coveralls
D) Safety glasses and hard hat only
Answer: C
Explanation: Hand scraping can generate high dust; a full-face respirator with
P100 filtration and disposable coveralls protect both respiratory and skin
exposure.
**Question 10. X-ray fluorescence (XRF) analyzers detect lead in paint by
measuring:**
A) Gamma radiation emitted from lead atoms
B) Fluorescent X-rays produced when the sample is excited by an X-ray source
C) Infrared absorption of lead compounds
D) Electrical conductivity of the paint film
