Public School Works Practice Exam

Maintaining a neutral, supported sitting posture reduces strain on the neck, back, and shoulders when you sit for long periods. The best option follows common ergonomic guidelines: knees at about 90 degrees with feet flat on the floor; the monitor top at eye level or slightly below, about 16–22 inches away; and the head facing forward with a slight downward tilt. This setup keeps the spine in a natural alignment, supports circulation, and minimizes the need to bend or twist the neck. The other options introduce postural compromises: one places you in a very reclined knee angle with feet on the desk and the monitor above eye level, causing neck strain and poor back support; another keeps the knees locked with the monitor at knee level and the head turned to the side, which disrupts circulation and creates neck strain; and the last has a shallow knee bend with feet not flat and the monitor far away, which strains the eyes and reduces stability.