AMPP C3 – Deleading of Industrial Structures
AMPP C3 – SUPERVISOR/COMPETENT PERSON TRAINING FOR DELEADING
AND HAZARDOUS COATINGS REMOVAL | EXAM QUESTIONS AND CORRECT
ANSWERS | LATEST 2026/2027
AMPP C3 CERTIFICATION
Supervisor / Competent Person for Deleading of Industrial Structures
1. During open abrasive blasting of lead-containing paint, what is the
primary route by which lead enters a worker's body?
A. Splash contact with the eyes
B. Absorption of inorganic lead through intact skin
C. Accidental puncture wounds from debris
D. Inhalation of airborne dust and fume
ANSWER : D
Fine lead dust and fume generated by blasting are inhaled and absorbed
efficiently in the lungs.
2. Apart from inhalation, which route of lead exposure is most significant for
deleading workers?
A. Ingestion from contaminated hands, food, drinks or tobacco
B. Absorption through the soles of the feet
C. Exposure through hearing protection
D. Absorption through hair follicles
ANSWER : A
Hand-to-mouth transfer carries settled lead dust into the digestive tract.
Page 1 of 51
,AMPP C3 – Deleading of Industrial Structures
3. Where is the majority of the long-term lead body burden stored in an
adult?
A. In the liver
B. In blood plasma
C. In the bones and teeth
D. In adipose (fat) tissue
ANSWER : C
Roughly 90 percent or more of retained lead in adults is deposited in bone,
where it can remain for decades.
4. Which statement about skin contact with lead is most accurate?
A. Skin absorption is the main route of exposure in paint removal
B. Inorganic lead is poorly absorbed through intact skin, but organic lead
compounds can be absorbed
C. Inorganic lead is rapidly absorbed through intact skin
D. Neither organic nor inorganic lead can enter through skin
ANSWER : B
The lead in industrial paints is inorganic; the skin concern is mainly transfer of
dust to the mouth.
5. "Wrist drop" in a lead-exposed worker is a sign of damage to which
system?
A. Integumentary system
B. Respiratory system
C. Lymphatic system
D. Peripheral nervous system
ANSWER : D
Lead-induced peripheral neuropathy weakens the extensor muscles of the wrist
and hand.
6. Lead interferes with the body's production of heme, which most commonly
results in which condition?
A. Dermatitis
B. Hypertension only
C. Anemia
D. Asthma
ANSWER : C
By blocking enzymes in heme synthesis, lead reduces hemoglobin production
and can cause anemia.
Page 2 of 51
,AMPP C3 – Deleading of Industrial Structures
7. Which blood test, used along with blood lead level, reflects lead's effect on
heme synthesis over recent months?
A. Zinc protoporphyrin (ZPP)
B. Blood urea nitrogen (BUN)
C. White blood cell count
D. Blood glucose
ANSWER : A
ZPP rises when lead blocks the incorporation of iron into heme and is part of
OSHA biological monitoring.
8. The term "lead colic" describes which symptom?
A. Persistent dry cough
B. Ringing in the ears
C. Severe abdominal cramping pain
D. Blue discoloration of the fingertips
ANSWER : C
Lead colic is intense, cramping abdominal pain associated with significant lead
exposure.
9. Long-term lead exposure is most closely associated with chronic damage to
which organ?
A. Gallbladder
B. Kidneys
C. Appendix
D. Spleen
ANSWER : B
Lead can cause chronic nephropathy that may progress with little warning.
10. Which reproductive effect of lead exposure has been documented in male
workers?
A. No reproductive effects in males
B. Improved fertility
C. Decreased sperm count and abnormal sperm
D. Increased sperm production
ANSWER : C
Lead affects both male and female reproduction, including reduced sperm count
and motility.
Page 3 of 51
, AMPP C3 – Deleading of Industrial Structures
11. Why is lead exposure during pregnancy a particular concern?
A. Lead affects only the mother's skin
B. Pregnancy prevents the release of lead from bone
C. Lead is filtered completely by the placenta
D. Lead crosses the placenta and can harm the developing nervous system of
the fetus
ANSWER : D
Lead moves from maternal blood to the fetus, and bone lead can be mobilized
during pregnancy.
12. What is meant by "take-home" lead exposure?
A. Lead in household drinking water pipes only
B. Lead that workers are allowed to take home for testing
C. Lead absorbed while sleeping
D. Lead dust carried home on clothing, skin, tools or vehicles that exposes
family members
ANSWER : D
Contaminated work clothing and vehicles can expose children and spouses to
lead dust.
13. Under the OSHA lead standard, routine prophylactic chelation of
workers is:
A. Allowed if the worker requests it
B. Recommended for all workers above the action level
C. Prohibited
D. Required every six months
ANSWER : C
Chelating agents may not be used to lower blood lead to keep workers on the
job; they are for medical treatment only.
14. When chelation therapy is used, it must be done:
A. Before each work shift
B. By the worker using over-the-counter products
C. Only under the supervision of a licensed physician in a clinical setting with
appropriate monitoring
D. By the competent person on the job site
ANSWER : C
Chelation is a medical treatment with real risks and requires physician
supervision.
Page 4 of 51
AMPP C3 – SUPERVISOR/COMPETENT PERSON TRAINING FOR DELEADING
AND HAZARDOUS COATINGS REMOVAL | EXAM QUESTIONS AND CORRECT
ANSWERS | LATEST 2026/2027
AMPP C3 CERTIFICATION
Supervisor / Competent Person for Deleading of Industrial Structures
1. During open abrasive blasting of lead-containing paint, what is the
primary route by which lead enters a worker's body?
A. Splash contact with the eyes
B. Absorption of inorganic lead through intact skin
C. Accidental puncture wounds from debris
D. Inhalation of airborne dust and fume
ANSWER : D
Fine lead dust and fume generated by blasting are inhaled and absorbed
efficiently in the lungs.
2. Apart from inhalation, which route of lead exposure is most significant for
deleading workers?
A. Ingestion from contaminated hands, food, drinks or tobacco
B. Absorption through the soles of the feet
C. Exposure through hearing protection
D. Absorption through hair follicles
ANSWER : A
Hand-to-mouth transfer carries settled lead dust into the digestive tract.
Page 1 of 51
,AMPP C3 – Deleading of Industrial Structures
3. Where is the majority of the long-term lead body burden stored in an
adult?
A. In the liver
B. In blood plasma
C. In the bones and teeth
D. In adipose (fat) tissue
ANSWER : C
Roughly 90 percent or more of retained lead in adults is deposited in bone,
where it can remain for decades.
4. Which statement about skin contact with lead is most accurate?
A. Skin absorption is the main route of exposure in paint removal
B. Inorganic lead is poorly absorbed through intact skin, but organic lead
compounds can be absorbed
C. Inorganic lead is rapidly absorbed through intact skin
D. Neither organic nor inorganic lead can enter through skin
ANSWER : B
The lead in industrial paints is inorganic; the skin concern is mainly transfer of
dust to the mouth.
5. "Wrist drop" in a lead-exposed worker is a sign of damage to which
system?
A. Integumentary system
B. Respiratory system
C. Lymphatic system
D. Peripheral nervous system
ANSWER : D
Lead-induced peripheral neuropathy weakens the extensor muscles of the wrist
and hand.
6. Lead interferes with the body's production of heme, which most commonly
results in which condition?
A. Dermatitis
B. Hypertension only
C. Anemia
D. Asthma
ANSWER : C
By blocking enzymes in heme synthesis, lead reduces hemoglobin production
and can cause anemia.
Page 2 of 51
,AMPP C3 – Deleading of Industrial Structures
7. Which blood test, used along with blood lead level, reflects lead's effect on
heme synthesis over recent months?
A. Zinc protoporphyrin (ZPP)
B. Blood urea nitrogen (BUN)
C. White blood cell count
D. Blood glucose
ANSWER : A
ZPP rises when lead blocks the incorporation of iron into heme and is part of
OSHA biological monitoring.
8. The term "lead colic" describes which symptom?
A. Persistent dry cough
B. Ringing in the ears
C. Severe abdominal cramping pain
D. Blue discoloration of the fingertips
ANSWER : C
Lead colic is intense, cramping abdominal pain associated with significant lead
exposure.
9. Long-term lead exposure is most closely associated with chronic damage to
which organ?
A. Gallbladder
B. Kidneys
C. Appendix
D. Spleen
ANSWER : B
Lead can cause chronic nephropathy that may progress with little warning.
10. Which reproductive effect of lead exposure has been documented in male
workers?
A. No reproductive effects in males
B. Improved fertility
C. Decreased sperm count and abnormal sperm
D. Increased sperm production
ANSWER : C
Lead affects both male and female reproduction, including reduced sperm count
and motility.
Page 3 of 51
, AMPP C3 – Deleading of Industrial Structures
11. Why is lead exposure during pregnancy a particular concern?
A. Lead affects only the mother's skin
B. Pregnancy prevents the release of lead from bone
C. Lead is filtered completely by the placenta
D. Lead crosses the placenta and can harm the developing nervous system of
the fetus
ANSWER : D
Lead moves from maternal blood to the fetus, and bone lead can be mobilized
during pregnancy.
12. What is meant by "take-home" lead exposure?
A. Lead in household drinking water pipes only
B. Lead that workers are allowed to take home for testing
C. Lead absorbed while sleeping
D. Lead dust carried home on clothing, skin, tools or vehicles that exposes
family members
ANSWER : D
Contaminated work clothing and vehicles can expose children and spouses to
lead dust.
13. Under the OSHA lead standard, routine prophylactic chelation of
workers is:
A. Allowed if the worker requests it
B. Recommended for all workers above the action level
C. Prohibited
D. Required every six months
ANSWER : C
Chelating agents may not be used to lower blood lead to keep workers on the
job; they are for medical treatment only.
14. When chelation therapy is used, it must be done:
A. Before each work shift
B. By the worker using over-the-counter products
C. Only under the supervision of a licensed physician in a clinical setting with
appropriate monitoring
D. By the competent person on the job site
ANSWER : C
Chelation is a medical treatment with real risks and requires physician
supervision.
Page 4 of 51
