Virginia Industrial Hygienist
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
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1. Industrial hygiene is best defined as the science and practice devoted
to the anticipation, recognition, evaluation, and control of workplace
environmental factors that may adversely affect health. Which of the
following best describes the primary goal of industrial hygiene
programs in occupational settings?
A. Maximizing industrial productivity through automation systems
B. Eliminating all workplace hazards through legal enforcement only
C. Reducing, controlling, or preventing worker exposure to harmful agents
D. Increasing employee output through behavioral psychology interventions
Correct Answer: C
Rationale: Industrial hygiene focuses on protecting worker health by
identifying, assessing, and controlling exposures to chemical, physical,
biological, and ergonomic hazards rather than eliminating productivity
concerns or relying solely on enforcement mechanisms.
, 2. In an industrial hygiene program, which sequence correctly represents
the classical approach used to manage workplace hazards?
A. Control, recognition, evaluation, anticipation
B. Anticipation, recognition, evaluation, control
C. Evaluation, anticipation, control, recognition
D. Recognition, control, anticipation, evaluation
Correct Answer: B
Rationale: The fundamental industrial hygiene process follows a logical
progression beginning with anticipating potential hazards, recognizing
existing hazards, evaluating exposure levels, and finally implementing
control measures.
3. Which of the following is considered a chemical hazard in the
workplace?
A. Noise and vibration exposure
B. Improper workstation design
C. Excessive airborne solvent vapors
D. Ionizing radiation exposure
Correct Answer: C
Rationale: Chemical hazards involve airborne contaminants such as gases,
vapors, mists, fumes, and dusts that can enter the body and cause adverse
health effects.
4. Which category of hazard includes excessive noise, vibration, and
extreme temperature conditions?
A. Biological hazards
B. Physical hazards
C. Ergonomic hazards
D. Chemical hazards
,Correct Answer: B
Rationale: Physical hazards include environmental conditions such as noise,
vibration, radiation, and temperature extremes that can cause injury or
illness without direct chemical interaction.
5. Biological hazards in industrial hygiene refer to:
A. Improper lifting techniques causing musculoskeletal injury
B. Living organisms or their products that cause disease or harm
C. Exposure to solvent vapors in confined spaces
D. Excessive workplace lighting causing eye strain
Correct Answer: B
Rationale: Biological hazards include bacteria, viruses, fungi, and other
organisms or biological substances capable of causing infections or allergic
reactions in workers.
6. Ergonomic hazards are primarily associated with:
A. Radiation exposure and thermal stress
B. Improper workplace design and repetitive motion strain
C. Chemical inhalation exposure
D. Infectious disease transmission
Correct Answer: B
Rationale: Ergonomic hazards arise from poorly designed tasks, tools, or
workstations that place stress on the human body, leading to
musculoskeletal disorders.
7. Which of the following represents an engineering control in industrial
hygiene?
A. Mandatory safety training sessions
B. Rotation of workers between tasks
, C. Local exhaust ventilation systems
D. Use of personal protective equipment only
Correct Answer: C
Rationale: Engineering controls physically modify the workplace to reduce
exposure, and ventilation systems are a primary example of controlling
contaminants at the source.
8. Administrative controls in hazard management typically include:
A. Installation of air filtration systems
B. Substitution of hazardous chemicals
C. Work schedule changes and job rotation
D. Use of respirators as primary protection
Correct Answer: C
Rationale: Administrative controls reduce exposure by changing how or
when work is performed, such as limiting exposure time or rotating
employees.
9. The most effective method of controlling workplace hazards is
generally considered to be:
A. Personal protective equipment
B. Administrative controls
C. Engineering controls
D. Hazard elimination or substitution
Correct Answer: D
Rationale: Elimination or substitution removes the hazard entirely or
replaces it with a less dangerous alternative, making it the most effective
control strategy.
10. Personal protective equipment (PPE) is considered:
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationale 2026 Q&A| Instant
Download Pdf
1. Industrial hygiene is best defined as the science and practice devoted
to the anticipation, recognition, evaluation, and control of workplace
environmental factors that may adversely affect health. Which of the
following best describes the primary goal of industrial hygiene
programs in occupational settings?
A. Maximizing industrial productivity through automation systems
B. Eliminating all workplace hazards through legal enforcement only
C. Reducing, controlling, or preventing worker exposure to harmful agents
D. Increasing employee output through behavioral psychology interventions
Correct Answer: C
Rationale: Industrial hygiene focuses on protecting worker health by
identifying, assessing, and controlling exposures to chemical, physical,
biological, and ergonomic hazards rather than eliminating productivity
concerns or relying solely on enforcement mechanisms.
, 2. In an industrial hygiene program, which sequence correctly represents
the classical approach used to manage workplace hazards?
A. Control, recognition, evaluation, anticipation
B. Anticipation, recognition, evaluation, control
C. Evaluation, anticipation, control, recognition
D. Recognition, control, anticipation, evaluation
Correct Answer: B
Rationale: The fundamental industrial hygiene process follows a logical
progression beginning with anticipating potential hazards, recognizing
existing hazards, evaluating exposure levels, and finally implementing
control measures.
3. Which of the following is considered a chemical hazard in the
workplace?
A. Noise and vibration exposure
B. Improper workstation design
C. Excessive airborne solvent vapors
D. Ionizing radiation exposure
Correct Answer: C
Rationale: Chemical hazards involve airborne contaminants such as gases,
vapors, mists, fumes, and dusts that can enter the body and cause adverse
health effects.
4. Which category of hazard includes excessive noise, vibration, and
extreme temperature conditions?
A. Biological hazards
B. Physical hazards
C. Ergonomic hazards
D. Chemical hazards
,Correct Answer: B
Rationale: Physical hazards include environmental conditions such as noise,
vibration, radiation, and temperature extremes that can cause injury or
illness without direct chemical interaction.
5. Biological hazards in industrial hygiene refer to:
A. Improper lifting techniques causing musculoskeletal injury
B. Living organisms or their products that cause disease or harm
C. Exposure to solvent vapors in confined spaces
D. Excessive workplace lighting causing eye strain
Correct Answer: B
Rationale: Biological hazards include bacteria, viruses, fungi, and other
organisms or biological substances capable of causing infections or allergic
reactions in workers.
6. Ergonomic hazards are primarily associated with:
A. Radiation exposure and thermal stress
B. Improper workplace design and repetitive motion strain
C. Chemical inhalation exposure
D. Infectious disease transmission
Correct Answer: B
Rationale: Ergonomic hazards arise from poorly designed tasks, tools, or
workstations that place stress on the human body, leading to
musculoskeletal disorders.
7. Which of the following represents an engineering control in industrial
hygiene?
A. Mandatory safety training sessions
B. Rotation of workers between tasks
, C. Local exhaust ventilation systems
D. Use of personal protective equipment only
Correct Answer: C
Rationale: Engineering controls physically modify the workplace to reduce
exposure, and ventilation systems are a primary example of controlling
contaminants at the source.
8. Administrative controls in hazard management typically include:
A. Installation of air filtration systems
B. Substitution of hazardous chemicals
C. Work schedule changes and job rotation
D. Use of respirators as primary protection
Correct Answer: C
Rationale: Administrative controls reduce exposure by changing how or
when work is performed, such as limiting exposure time or rotating
employees.
9. The most effective method of controlling workplace hazards is
generally considered to be:
A. Personal protective equipment
B. Administrative controls
C. Engineering controls
D. Hazard elimination or substitution
Correct Answer: D
Rationale: Elimination or substitution removes the hazard entirely or
replaces it with a less dangerous alternative, making it the most effective
control strategy.
10. Personal protective equipment (PPE) is considered:
