CIEE Ergonomic Principles & Evaluation Techniques 5

Question 1

The 'Revised Strain Index' (Moore & Garg) was developed to predict the risk of which specific category of occupational disorder?

Accepted Answer

Distal upper extremity disorders such as carpal tunnel syndrome and tendinitis

Answer

The Strain Index was designed to assess risk for distal upper extremity musculoskeletal disorders, including disorders of the wrist, hand, and forearm.

Question 2

When using a checklist-based ergonomic screening tool such as the OSHA Ergonomics eMatrix, a 'red' risk rating for a task typically triggers which response?

Accepted Answer

Immediate detailed ergonomic analysis and priority engineering controls

Answer

A red (high) rating on ergonomic screening tools indicates unacceptable risk requiring immediate detailed analysis and prioritized engineering intervention.

Question 3

In ergonomic evaluation terminology, 'task cycle time' is important primarily because:

Accepted Answer

Shorter cycle times generally mean higher repetition rates, which increases CTD risk

Answer

Shorter cycle times indicate higher repetition frequency, which is one of the primary ergonomic risk factors for cumulative trauma disorders.

Question 4

Which ergonomic principle supports the design of hand tools with a pistol-grip angle of approximately 15–20 degrees for horizontal power grip tasks?

Accepted Answer

The angled grip positions the wrist in a more neutral posture, reducing flexor tendon stress

Answer

A 15–20° angled pistol grip maintains the wrist closer to neutral flexion/extension, reducing mechanical stress on flexor tendons and carpal tunnel contents.

Question 5

During an ergonomic assessment, a worker's Nordic Musculoskeletal Questionnaire (NMQ) results reveal high prevalence of neck and shoulder symptoms. The evaluator's most appropriate next step is to:

Accepted Answer

Conduct a detailed biomechanical analysis of tasks with high neck and shoulder postural demands

Answer

NMQ symptom prevalence data directs the evaluator to focus detailed biomechanical analysis on the body regions and tasks most likely contributing to those symptoms.

(CIEE) Certified Industrial Ergonomic Evaluator Practice Test

(CIEE) Certified Industrial Ergonomic Evaluator Practice Test

CIEE Ergonomic Principles & Evaluation Techniques 5