WorksheetsErgonomics 4
Total questions: 10
Worksheet time: 5mins
Which statement best describes the trend in disability benefit payments for Musculoskeletal Disorders from 2008 to 2012?
Temporary payments decreased while permanent payments increased overall
Both temporary and permanent payments peaked in 2010 then declined
Both temporary and permanent payments increased steadily each year
Permanent payments were stable while temporary payments fluctuated slightly
In the diagram, inflammation of the flexor tendons within the carpal tunnel increases pressure on which structure, leading most directly to pain and numbness in the hand?
Median nerve within the carpal tunnel
Extensor tendons on the dorsal wrist
Ulnar nerve outside the tunnel
Radial artery near the wrist
According to the diagram, which wrist position most likely produces the lowest grip strength and highest injury risk?
Radial deviation around 25 degrees
Flexion around 45 degrees
Ulnar deviation around 40 degrees
Neutral at 0 degrees alignment
Which statement best guides tool design for forceful tasks in terms of grip type and injury risk?
Avoid power grips for force; they reduce precision
Use either grip for force; both have equal strength
Use a pinch grip for force; power grips risk fatigue
Use a power grip for force; pinch grips risk fatigue
In the diagram showing a proactive 4-step ergonomic approach for hand-tool tasks, which sequence best represents the correct order of steps to engineer safety into the task?
Know the job, assess the workspace, perfect the posture, select the tool
Select the tool, perfect the posture, assess the workspace, know the job
Perfect the posture, select the tool, know the job, assess the workspace
Assess the workspace, know the job, select the tool, perfect the posture
Which design choice best maintains a neutral wrist when applying horizontal force with pliers?
Increase grip force to stabilize a straight handle
Use a bent-handle tool aligned with the forearm
Use a straight-handle tool with narrow grips
Rotate the wrist to align with a straight handle
An engineer must specify a double‑handled cutter for repetitive power tasks. Which combination best meets ergonomic criteria?
Grip span open 3 inches, closed 2.2 inches, mass 0.9 kg
Grip span open 4 inches, closed 1 inch, mass 1.5 kg
Grip span open 2 inches, closed 1.5 inches, mass 1.2 kg
Grip span open 3.8 inches, closed 2.4 inches, mass 0.8 kg
Which symptom pattern best matches Stage 1 of musculoskeletal disorder (MSD) development?
Aches during work that resolve with rest
Pain with light movements and persistent discomfort
Constant pain even when completely at rest
Symptoms start earlier and disrupt normal sleep
A warehouse team analyzes whole‑body tasks that involve posture, force, and movement. Which standardized method is most appropriate?
Nordic Questionnaire for symptom surveys
Strain Index for hand‑intensive work
REBA for whole‑body task assessment
RULA for seated upper limb tasks
Which action best aligns with the principle that good ergonomics drives productivity and safety in a manufacturing facility?
Audit the highest‑risk manual tasks regularly
Rely on supervisors to spot risks informally
Rotate staff randomly between all workstations
Delay equipment upgrades to reduce capital costs
