MNO2608 January/February Supplementary Exam Memo | Due January/February 2026 | Fundamentals of Industrial Hygiene (UNISA)

• MNO2608 January/February Supplementary Exam
Memo | Due January/February 2026 |
Fundamentals of Industrial Hygiene (UNISA)

,Question 1: What is the primary goal of industrial hygiene?
• A) To ensure workplace safety
• B) To control environmental pollution
• C) To protect workers' health
• D) To promote corporate profitability
Correct Option: C) To protect workers' health
Rationale: The primary goal of industrial hygiene is to anticipate, recognize, evaluate,
and control workplace conditions that may cause workers' injury or illness, thereby
protecting their health.


Question 2: Which of the following is a common method for monitoring air quality
in the workplace?
• A) Surveying
• B) Noise level measurements
• C) Indoor air quality testing
• D) Visual inspections
Correct Option: C) Indoor air quality testing
Rationale: Indoor air quality testing is a direct method for monitoring air pollutants and
assessing occupational exposure to harmful substances.


Question 3: What does the term "permissible exposure limit (PEL)" refer to?
• A) The highest level of discomfort allowed
• B) The maximum concentration of a substance to which workers can be
exposed
• C) The recommended safety practices in the workplace
• D) The minimum requirement for personal protective equipment
Correct Option: B) The maximum concentration of a substance to which workers
can be exposed
Rationale: PELs are regulatory limits on the amount or concentration of a substance in
the air, established to protect worker health.

, Question 4: Which of the following is considered a physical hazard in the
workplace?
• A) Exposure to chemicals
• B) Noise
• C) Biological agents
• D) Psychological stress
Correct Option: B) Noise
Rationale: Noise is classified as a physical hazard as it can cause hearing loss and
other adverse health effects.
Question 1: What is the primary goal of industrial hygiene?
• A) To ensure workplace safety
• B) To control environmental pollution

• C) To protect workers' health

• D) To promote corporate profitability
Rationale: The primary goal of industrial hygiene is to anticipate, recognize, evaluate,
and control workplace conditions that may cause workers' injury or illness, thereby
protecting their health.


Question 2: Which of the following is a common method for monitoring air quality
in the workplace?
• A) Surveying
• B) Noise level measurements

• C) Indoor air quality testing

• D) Visual inspections
Rationale: Indoor air quality testing is a direct method for monitoring air pollutants and
assessing occupational exposure to harmful substances.


Question 3: What does the term "permissible exposure limit (PEL)" refer to?
• A) The highest level of discomfort allowed
• B) The maximum concentration of a substance to which workers can be
exposed