Which feature of protective suits can help minimize minor leaks due to positive internal pressure?

• A. It reduces heat buildup
• B. It increases mobility
• C. Positive internal pressure may help minimize minor leaks
• D. It guarantees no leaks

Answer: (C)

Keeping the inside of the protective suit at a higher pressure than the outside helps prevent contaminants from entering through small flaws. When the internal air is pressurized, any tiny hole causes air to escape outward rather than letting outside air and hazards seep in, which minimizes minor leaks. That’s why the concept highlighted is positive internal pressure as a protective feature. While reducing heat buildup and increased mobility improve comfort and usability, they don’t address leakage. And no suit can guarantee zero leaks, since tiny breaches can still exist despite good design.