Michigan Industrial Hygienist Certification
Exam Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
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1. What is the primary purpose of industrial hygiene?
a) Reduce productivity losses
b) Identify and control workplace hazards
c) Ensure regulatory compliance only
d) Increase company profits
b) Identify and control workplace hazards
Industrial hygiene focuses on recognizing, evaluating, and controlling
workplace hazards to protect worker health.
2. Which of the following is a physical hazard?
a) Noise
b) Asbestos
c) Benzene
d) Ergonomic stress
a) Noise
Physical hazards include agents like noise, heat, radiation, or vibration.
3. What type of respirator provides the highest level of protection
against airborne contaminants?
a) N95
b) Half-mask respirator
c) Powered Air-Purifying Respirator (PAPR)
,d) Dust mask
c) Powered Air-Purifying Respirator (PAPR)
PAPRs provide higher protection due to a powered fan and full-face
coverage, reducing inhalation risk.
4. Which agency sets permissible exposure limits (PELs) in the United
States?
a) EPA
b) OSHA
c) NIOSH
d) CDC
b) OSHA
OSHA enforces workplace standards including PELs, while NIOSH
provides recommendations.
5. What does the acronym TLV stand for?
a) Total Limiting Value
b) Threshold Limit Value
c) Toxic Limit Value
d) Temporary Limit Value
b) Threshold Limit Value
TLVs are guidelines by ACGIH indicating safe exposure levels for
chemicals.
6. Which of the following best describes a biological hazard in the
workplace?
a) Noise
b) Bloodborne pathogens
c) Lead dust
,d) Heat stress
b) Bloodborne pathogens
Biological hazards include bacteria, viruses, fungi, and other organisms
that can cause disease.
7. When performing an exposure assessment, which step comes first?
a) Selecting control methods
b) Evaluating employee exposure
c) Identifying hazards
d) Implementing engineering controls
c) Identifying hazards
The first step is always hazard recognition to understand what risks exist
before measurement or control.
8. What is the most effective engineering control for reducing airborne
dust?
a) Administrative scheduling
b) Local exhaust ventilation
c) Personal protective equipment
d) Employee rotation
b) Local exhaust ventilation
Engineering controls remove contaminants at the source and are more
reliable than PPE alone.
9. Which of the following chemicals is considered a carcinogen?
a) Ethanol
b) Benzene
c) Water
d) Sodium chloride
, b) Benzene
Benzene is classified as a human carcinogen associated with leukemia.
10. What is the purpose of a Material Safety Data Sheet (MSDS) or
Safety Data Sheet (SDS)?
a) Promote product sales
b) Provide hazard information and safe handling instructions
c) Describe workplace ergonomics
d) Track employee training
b) Provide hazard information and safe handling instructions
SDSs inform workers about chemical hazards, first aid, storage, and
disposal requirements.
11. Which type of monitoring measures personal exposure directly?
a) Area sampling
b) Personal sampling
c) Bulk sampling
d) Biological sampling
b) Personal sampling
Personal sampling measures exposure in the worker’s breathing zone for
accurate risk assessment.
12. The hierarchy of controls ranks hazard mitigation strategies. Which
is the most effective?
a) Administrative controls
b) Engineering controls
c) Elimination
d) Personal protective equipment
c) Elimination
Exam Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary purpose of industrial hygiene?
a) Reduce productivity losses
b) Identify and control workplace hazards
c) Ensure regulatory compliance only
d) Increase company profits
b) Identify and control workplace hazards
Industrial hygiene focuses on recognizing, evaluating, and controlling
workplace hazards to protect worker health.
2. Which of the following is a physical hazard?
a) Noise
b) Asbestos
c) Benzene
d) Ergonomic stress
a) Noise
Physical hazards include agents like noise, heat, radiation, or vibration.
3. What type of respirator provides the highest level of protection
against airborne contaminants?
a) N95
b) Half-mask respirator
c) Powered Air-Purifying Respirator (PAPR)
,d) Dust mask
c) Powered Air-Purifying Respirator (PAPR)
PAPRs provide higher protection due to a powered fan and full-face
coverage, reducing inhalation risk.
4. Which agency sets permissible exposure limits (PELs) in the United
States?
a) EPA
b) OSHA
c) NIOSH
d) CDC
b) OSHA
OSHA enforces workplace standards including PELs, while NIOSH
provides recommendations.
5. What does the acronym TLV stand for?
a) Total Limiting Value
b) Threshold Limit Value
c) Toxic Limit Value
d) Temporary Limit Value
b) Threshold Limit Value
TLVs are guidelines by ACGIH indicating safe exposure levels for
chemicals.
6. Which of the following best describes a biological hazard in the
workplace?
a) Noise
b) Bloodborne pathogens
c) Lead dust
,d) Heat stress
b) Bloodborne pathogens
Biological hazards include bacteria, viruses, fungi, and other organisms
that can cause disease.
7. When performing an exposure assessment, which step comes first?
a) Selecting control methods
b) Evaluating employee exposure
c) Identifying hazards
d) Implementing engineering controls
c) Identifying hazards
The first step is always hazard recognition to understand what risks exist
before measurement or control.
8. What is the most effective engineering control for reducing airborne
dust?
a) Administrative scheduling
b) Local exhaust ventilation
c) Personal protective equipment
d) Employee rotation
b) Local exhaust ventilation
Engineering controls remove contaminants at the source and are more
reliable than PPE alone.
9. Which of the following chemicals is considered a carcinogen?
a) Ethanol
b) Benzene
c) Water
d) Sodium chloride
, b) Benzene
Benzene is classified as a human carcinogen associated with leukemia.
10. What is the purpose of a Material Safety Data Sheet (MSDS) or
Safety Data Sheet (SDS)?
a) Promote product sales
b) Provide hazard information and safe handling instructions
c) Describe workplace ergonomics
d) Track employee training
b) Provide hazard information and safe handling instructions
SDSs inform workers about chemical hazards, first aid, storage, and
disposal requirements.
11. Which type of monitoring measures personal exposure directly?
a) Area sampling
b) Personal sampling
c) Bulk sampling
d) Biological sampling
b) Personal sampling
Personal sampling measures exposure in the worker’s breathing zone for
accurate risk assessment.
12. The hierarchy of controls ranks hazard mitigation strategies. Which
is the most effective?
a) Administrative controls
b) Engineering controls
c) Elimination
d) Personal protective equipment
c) Elimination
