Office Ergonomics & Computer Use 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 Office Ergonomics & Computer Use flashcards as text
A worker reports neck pain after switching to a dual-monitor setup. Which adjustment should be made first?
Answer: Position the primary monitor directly in front and center both monitors symmetrically
The primary monitor should be centered in front of the user, with secondary monitors arranged symmetrically to minimize neck rotation.
Which keyboard tray feature most directly reduces ulnar deviation during typing?
Answer: Negative tilt (front edge higher than rear)
A negative tilt positions the keyboard so wrists remain straighter, reducing ulnar deviation and flexion.
Under ANSI/HFES 100 guidelines, the recommended luminance ratio between a computer screen and the immediately surrounding area should not exceed:
Answer: 3:1
ANSI/HFES 100 recommends a maximum luminance ratio of 3:1 between the screen and immediately adjacent surfaces to prevent eye strain.
A data-entry operator performs highly repetitive keying tasks for 6 hours daily. Which intervention addresses repetitive strain risk most comprehensively?
Answer: Implement micro-breaks every 20–30 minutes combined with task rotation
Micro-breaks combined with task rotation reduce cumulative loading on tendons and muscles more effectively than a single equipment change.
When using a laptop as the sole workstation for extended periods, the highest-priority ergonomic intervention is:
Answer: Using an external keyboard and mouse with the laptop elevated to eye level
Elevating the laptop screen to eye level and adding external input devices eliminates the forced choice between good posture for the screen or for the hands.
Which anthropometric measure is most critical when setting seated keyboard height for a diverse workforce?
Answer: Sitting elbow height
Sitting elbow height determines the ideal keyboard placement so forearms are approximately horizontal and wrists are neutral.
A worker's chair lacks lumbar support and the employer cannot purchase a new chair. The most cost-effective immediate intervention is:
Answer: Provide a portable lumbar roll or rolled towel placed at the lumbar curve
A lumbar roll maintains the natural lordotic curve of the lower spine and can be inserted into any chair inexpensively.