Practice Test Geeks(CEA) Certified Ergonomics Associate Practice Test
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Industrial Ergonomics 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 Industrial Ergonomics flashcards as text

  1. Which factor does the ACGIH Hand Activity Level (HAL) TLV primarily quantify?

    Answer: Combined hand activity frequency and exertion pattern

    The HAL TLV is based on the frequency of hand motions and duty cycle (exertion-to-rest ratio) to characterize repetitive hand/wrist exposure.

  2. A worker experiences hand-arm vibration while operating a grinder. Which health outcome is specifically associated with this exposure?

    Answer: Raynaud's phenomenon (vibration white finger)

    Prolonged hand-arm vibration exposure can cause vibration white finger (VWF), a form of Raynaud's phenomenon involving vascular and neurological damage.

  3. In the RULA (Rapid Upper Limb Assessment) method, a score of 7 indicates:

    Answer: Implement changes immediately

    A RULA grand score of 7 is the highest level, indicating the posture is unacceptable and changes must be implemented immediately.

  4. Which design change BEST reduces shoulder loading for overhead assembly work?

    Answer: Using articulating arms or lift assists to bring parts to elbow height

    Articulating arms or positioning systems that bring work to elbow height eliminate overhead reach, dramatically reducing deltoid and shoulder muscle loading.

  5. What is 'dead man's hand' or 'trigger finger' most associated with in industrial ergonomics?

    Answer: Repetitive or sustained flexion of finger tendons combined with high grip force

    Trigger finger (stenosing tenosynovitis) results from repetitive forceful gripping causing tendon sheath inflammation, making finger flexion catching or locking.

  6. In ergonomic load assessment, 'moment arm' refers to:

    Answer: Perpendicular distance from the load to the joint's axis of rotation

    Moment arm is the perpendicular distance from the applied force (load) to the joint center, determining torque; a longer moment arm creates greater joint loading.

  7. Which ergonomic control is MOST effective for reducing whole-body vibration in forklift operators?

    Answer: Installing a suspension seat with proper damping characteristics

    A properly tuned suspension seat with matched damping attenuates vibration at the seat-operator interface, reducing transmission to the lumbar spine.