Practice and Application Flashcards

A process improvement team wants to reduce musculoskeletal disorders (MSDs) in a packaging line. They plan to use a Kaizen event. In ergonomics, a Kaizen approach is best characterized as:

Answer: A rapid, focused improvement workshop that engages frontline workers to solve specific ergonomic problems

Kaizen events are rapid improvement workshops that use frontline worker knowledge to implement targeted ergonomic solutions quickly.

When selecting a force gauge to measure push/pull forces on a cart, which measurement is most relevant to MSD risk assessment?

Answer: Initial peak force required to break static friction

The initial peak force (to overcome static friction) is typically the highest force exerted and most predictive of MSD risk in push/pull tasks.

A software company wants to evaluate its remote workers' home office setups. What is the most practical, scalable ergonomics assessment method for this scenario?

Answer: Self-assessment checklist combined with video or photo review by the ergonomist

A self-assessment checklist with photo/video review allows scalable screening of remote workstations while maintaining professional oversight.

During a whole-body vibration (WBV) assessment of a forklift operator, the primary axis of concern when calculating daily exposure A(8) is:

Answer: z-axis (vertical)

For seated workers exposed to WBV, the z-axis (vertical) is the primary axis assessed under ISO 2631-1 because vertical vibration most directly loads the spine.

An ergonomist is writing a business case to justify a $50,000 workstation redesign. Which cost category is typically MOST persuasive to executive decision-makers?

Answer: Direct and indirect costs of musculoskeletal injury claims and lost productivity

MSD injury costs — including workers' compensation, lost productivity, and turnover — provide the most compelling financial justification for ergonomic investment.

A task analysis reveals that a machine operator must simultaneously monitor three visual displays arranged horizontally, spanning a 90-degree field of view. The primary ergonomic concern is:

Answer: Excessive horizontal head rotation causing cervical strain

A 90-degree horizontal span requires repeated extreme head rotation, which stresses the cervical spine and should be redesigned to a narrower arc.

Under OSHA's General Duty Clause, an employer's ergonomics obligation is best described as:

Answer: Providing a workplace free from recognized hazards likely to cause serious harm, including ergonomic hazards

OSHA's General Duty Clause (Section 5(a)(1)) requires employers to address recognized hazards — including ergonomic risks — even in the absence of specific standards.