Workplace Assessment Methods Flashcards
7 cards from real CEA 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 Assessment Methods flashcards as text
Which standardized questionnaire is most commonly used to assess work-related psychosocial risk factors that can contribute to musculoskeletal disorders?
Answer: Job Content Questionnaire (JCQ)
The Job Content Questionnaire (JCQ), based on Karasek's demand-control model, assesses psychosocial exposures including job demands, decision latitude, and social support.
When a worker's elbows are consistently elevated above 30° during a keyboard task, the ergonomist's first corrective recommendation should address:
Answer: Work surface height being too high relative to elbow height
Elevated elbows during keyboard use typically indicate the work surface is too high; lowering the desk or raising the seat can restore neutral shoulder and elbow posture.
The BRIEF (Baseline Risk Identification of Ergonomic Factors) tool evaluates body part exposures across which four risk factors?
Answer: Posture, force, repetition, and exposure duration
BRIEF scores posture, force, repetition, and duration for each of nine body regions to create a risk profile that prioritizes intervention targets.
After completing a NIOSH Lifting Equation analysis, a Lifting Index (LI) value of 2.5 should be interpreted as:
Answer: The task likely poses increased risk for some workers and redesign is warranted
An LI greater than 1.0 suggests increased risk; a value of 2.5 indicates significant risk for a meaningful portion of workers, warranting job redesign.
In a seated workstation assessment, 'keyboard tray position' should be set so that the worker's wrists are:
Answer: Neutral or slightly flexed, not deviated ulnarly or radially
A neutral wrist position (straight or very slightly extended) minimizes carpal tunnel pressure and tendon strain during sustained keyboard use.
Which type of control is generally considered most effective in the hierarchy of ergonomic controls for eliminating MSD risk?
Answer: Engineering controls that redesign the tool, workstation, or process
Engineering controls rank highest in the hierarchy because they eliminate or reduce the hazard at the source, rather than relying on worker behavior or protective equipment.
A force plate or pressure mat placed on a workstation floor can provide ergonomic information about:
Answer: Contact pressure distribution on foot soles during prolonged standing and postural sway
Floor pressure mats measure plantar pressure distribution and center-of-pressure displacement, informing assessments of prolonged standing fatigue and anti-fatigue mat effectiveness.