CPE CPE Organizational Ergonomics & Work Systems Questions and Answers 1 — Questions and Answers
Question 1: Macroergonomics is best defined as which of the following?
- The study of individual workstation dimensions
- A top-down sociotechnical approach to the design of work systems (Correct answer)
- Analysis of single-task biomechanical demands
- Measurement of individual anthropometric parameters
Correct answer: A top-down sociotechnical approach to the design of work systems
Macroergonomics addresses the design and management of entire work systems — including organizational structure, processes, and culture — using a top-down sociotechnical approach.
Question 2: Shift work is associated with which primary ergonomic health concern?
- Increased risk of repetitive strain injuries
- Disruption of circadian rhythms leading to fatigue, sleep disorders, and cardiovascular disease (Correct answer)
- Elevated noise exposure
- Reduced exposure to heat stress
Correct answer: Disruption of circadian rhythms leading to fatigue, sleep disorders, and cardiovascular disease
Shift work disrupts circadian rhythms by requiring work during normal sleep periods, leading to chronic sleep deprivation, fatigue, and long-term cardiovascular and metabolic health risks.
Question 3: The sociotechnical systems (STS) theory in organizational ergonomics emphasizes jointly optimizing which two system components?
- Equipment design and workspace layout
- Social/human subsystem and technical subsystem (Correct answer)
- Administrative controls and PPE
- Physical environment and cognitive demands
Correct answer: Social/human subsystem and technical subsystem
STS theory holds that work systems perform best when both the social (human, organizational) and technical (tools, processes, technology) subsystems are jointly optimized.
Question 4: Participatory ergonomics involves what key design principle?
- Expert consultants designing solutions without worker input
- Active involvement of workers in identifying problems and designing ergonomic solutions (Correct answer)
- Mandatory ergonomics compliance audits by management
- Top-down imposition of ergonomic standards
Correct answer: Active involvement of workers in identifying problems and designing ergonomic solutions
Participatory ergonomics engages workers as active contributors to problem identification and solution design, improving both the quality of solutions and worker acceptance.
Question 5: Which scheduling strategy is recommended to minimize the health effects of rotating shift work?
- Counter-clockwise rotation (night → evening → day)
- Clockwise rotation (day → evening → night) with forward-rotating schedules (Correct answer)
- Permanent night shift with no rotation
- Random rotation based on staffing needs
Correct answer: Clockwise rotation (day → evening → night) with forward-rotating schedules
Forward-rotating clockwise schedules (day → evening → night) align with the natural tendency of circadian rhythms to phase-delay, causing less disruption than backward rotation.
Question 6: In ergonomics program management, a 'leading indicator' differs from a 'lagging indicator' in that it:
- Measures injury rates after they occur
- Predicts future performance by measuring proactive program activities (Correct answer)
- Reports workers' compensation costs
- Counts OSHA recordable incidents
Correct answer: Predicts future performance by measuring proactive program activities
Leading indicators measure proactive activities (hazard assessments completed, near-misses reported, ergonomic improvements implemented) that predict future injury outcomes.
CPE CPE Organizational Ergonomics & Work Systems Questions and Answers 1
Macroergonomics is best defined as which of the following?