Workplace Design & Modifications Flashcards
7 cards from real CPE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Workplace Design & Modifications flashcards as text
When designing a sit-stand workstation, what is the primary ergonomic criterion for setting the correct standing work surface height?
Answer: Elbow height with arms relaxed at the sides
Standing work surface height should align with elbow height (arms relaxed) to minimize shoulder elevation and static muscle loading.
A manufacturing plant wants to reduce musculoskeletal injuries at a assembly line. Which modification BEST addresses cumulative trauma from repetitive wrist flexion?
Answer: Rotating workers to different tasks every two hours
Job rotation distributes cumulative loading across different muscle groups, directly reducing the dose of repetitive wrist flexion for each worker.
Under the Americans with Disabilities Act (ADA), what is the maximum height for forward-reach objects at an accessible workstation?
Answer: 48 inches (122 cm)
ADA standards specify a maximum forward reach of 48 inches above the floor for accessible workstation elements.
An ergonomist is evaluating a control room where operators monitor multiple screens for 8-hour shifts. Which seating feature is MOST critical for this task?
Answer: Adjustable lumbar support and seat pan depth
Adjustable lumbar support and seat pan depth accommodate diverse body sizes and allow dynamic posture changes during long monitoring shifts.
Which workstation dimension is MOST directly affected by the 5th-percentile female anthropometric data when designing for maximum reach?
Answer: Maximum horizontal reach distance
Designing maximum reach for the 5th-percentile female ensures that the smallest users can reach controls without overextension.
A warehouse ergonomics audit reveals workers frequently lift boxes from floor level to overhead shelves. Which intervention should be prioritized FIRST in the hierarchy of controls?
Answer: Install adjustable-height pallet lifts to eliminate floor-level lifts
Engineering controls such as pallet lifts eliminate the hazardous posture at the source, ranking above administrative or PPE solutions.
When modifying a hand-tool grip for a precision assembly task, which grip diameter range minimizes gripping force for MOST adult workers?
Answer: 30–40 mm (1.2–1.6 in)
A grip diameter of 30–40 mm optimizes the mechanical advantage of finger flexors, reducing required grip force for precision tasks.