Practice and Application Flashcards
7 cards from real AEP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Practice and Application flashcards as text
A welding task requires sustained neck flexion of 45 degrees for 20-minute intervals. Using the Rapid Upper Limb Assessment (RULA), which body region score would be most elevated by this posture?
Answer: Neck, trunk, and legs score
RULA Group B assesses neck, trunk, and legs; a 45-degree neck flexion generates a high neck posture score driving up the Group B score.
A retail store is redesigning checkout lanes. To minimize cumulative wrist deviation for cashiers scanning items, the BEST design change is:
Answer: Tilt the scanner bed at an angle that allows a neutral wrist during scanning
Tilting the scanner bed allows the wrist to remain in a neutral position rather than deviating to reach a flat horizontal surface.
An ergonomist is asked to evaluate cognitive workload in an air traffic control environment. Which tool is specifically designed to assess perceived mental workload?
Answer: NASA-TLX (Task Load Index)
The NASA-TLX is a multidimensional rating scale designed to assess subjective mental workload across six subscales.
After implementing ergonomic improvements on a production floor, how should an ergonomist best verify that interventions have achieved their intended biomechanical effect?
Answer: Re-assess postures and forces using the same observational tool used pre-intervention
Re-applying the same observational assessment tool pre- and post-intervention provides comparable data to measure actual biomechanical improvement.
A footwear manufacturing company employs workers who cut leather while seated at low tables, requiring sustained trunk flexion of 60+ degrees. The ergonomist's priority recommendation should be:
Answer: Raise the work surface height to reduce required trunk flexion
Raising the work surface is an engineering control that directly reduces trunk flexion angle, addressing the root biomechanical hazard.
A new ergonomics coordinator wants to prioritize which workstations to assess first. Which data source provides the strongest objective basis for prioritization?
Answer: OSHA 300 log data showing injury frequency and body part affected by workstation
OSHA 300 log data on injury rates and affected body parts directly identifies high-risk workstations and guides ergonomic prioritization.
A product designer asks an ergonomist to recommend handle diameter for a power screwdriver intended for the general adult US workforce. The biomechanically optimal cylindrical handle diameter for maximum grip strength is approximately:
Answer: 1.25–1.75 inches (32–45 mm)
Research consistently shows maximum grip strength is achieved with a cylindrical handle diameter of approximately 1.25–1.75 inches (32–45 mm) for most adults.