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Workplace Ergonomics & Health Flashcards

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

Read the first 7 Workplace Ergonomics & Health flashcards as text

  1. Which keyboard placement best reduces wrist extension and ulnar deviation during typing?

    Answer: Keyboard tilted away from the user (negative tilt)

    A negative keyboard tilt keeps the wrists in a neutral or slightly extended position, reducing ulnar deviation and strain.

  2. A worker reports numbness and tingling in the ring and little fingers after prolonged elbow flexion. Which nerve is most likely compressed?

    Answer: Ulnar nerve

    The ulnar nerve runs behind the medial epicondyle and is compressed by prolonged elbow flexion, causing symptoms in the ring and little fingers.

  3. What is the recommended maximum angle of neck flexion for sustained computer work to minimize cervical strain?

    Answer: 0–15 degrees

    Neck flexion beyond 15 degrees significantly increases compressive forces on the cervical spine and should be avoided for sustained work.

  4. Under OSHA's ergonomics guidance, what is the first recommended action when a worker reports early signs of a musculoskeletal disorder (MSD)?

    Answer: Provide early symptom reporting and prompt health care referral

    Early reporting systems and prompt health care referral are central to OSHA's MSD management approach, preventing progression of injuries.

  5. Which lighting measurement unit is used to quantify illuminance on a work surface?

    Answer: Foot-candle (lux)

    Foot-candles (or lux in SI units) measure illuminance — the amount of light hitting a surface per unit area.

  6. A standing workstation should be adjusted so the work surface is at approximately what body landmark for precision assembly tasks?

    Answer: Elbow height

    For precision work at a standing station, the surface should be slightly above elbow height to allow visual inspection without excessive neck flexion.

  7. Which ergonomic risk factor is most associated with development of trigger finger (stenosing tenosynovitis)?

    Answer: Sustained pinch grip combined with repetitive finger flexion

    Trigger finger results from inflammation of the flexor tendon sheath, commonly caused by repetitive pinch gripping and forceful finger flexion.