Which action involves neck seal adjustment during donning?

• A. Grasp hole in neck seal and widen the thumbs
• B. Bend forward from waist
• C. Pull hood down until headband is fitted to the forehead
• D. Tear off red pull strip

Answer: (A)

The action being tested is adjusting the neck seal so it fits snugly around the neck, creating a proper barrier. Grasping the hole in the neck seal and widening it with the thumbs allows you to place and tighten the seal around the neck, ensuring no gaps where contaminants could enter. This step is essential for an effective seal during donning.

The other actions do not adjust the neck seal. Bending forward from the waist helps seat or position the hood, pulling the hood down toward the forehead aligns the headband, and tearing off a red pull strip is not related to sealing the neck.