Practice Test GeeksCES - Certified Ergonomic Specialist Practice Test
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Ergonomic Tools, Equipment & Technology Flashcards

6 cards from real CES practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Motion capture technology in ergonomics is typically used to:

    Answer: Record 3D joint kinematics for biomechanical modeling and posture analysis

    Motion capture systems record precise 3D body movements that feed into biomechanical models to calculate joint loads, posture angles, and identify high-risk moments.

  2. A task requires workers to use pinch grip for 8 hours. The primary tool modification would be to:

    Answer: Redesign the part or tool to allow a power grip or use a tool holder

    Redesigning the part geometry or using a tool holder to shift from pinch to power grip is an engineering control that directly reduces finger and tendon loading.

  3. Which standard specifically provides ergonomic design guidelines for hand-held tools?

    Answer: ISO 11228-3

    ISO 11228-3 covers ergonomic recommendations for handling of low loads at high frequency, including hand tool use, grip forces, and repetitive upper-limb tasks.

  4. In a task simulation for product design, a digital human model (DHM) is primarily used to:

    Answer: Evaluate reach, clearance, force, and posture for a range of user body sizes before production

    DHMs (e.g., CATIA Human, JACK) simulate human anthropometry and biomechanics within CAD environments to identify ergonomic problems during the design phase.

  5. Which attribute of a chair pneumatic lift cylinder is most critical to verify during an ergonomic chair assessment?

    Answer: Adjustable height range sufficient to fit the user population

    If the seat height range cannot accommodate the shortest and tallest users at the correct elbow-height alignment, the chair cannot achieve neutral posture for those workers.

  6. What type of software is used to calculate the Recommended Weight Limit (RWL) and Lifting Index (LI) automatically from task measurements?

    Answer: NIOSH Lifting Equation calculator (e.g., NLE-Calc, ErgoPlus)

    Purpose-built NIOSH lifting equation calculators accept task measurements (horizontal distance, vertical height, frequency, etc.) and automatically output RWL and LI values.