Low and medium-pressure bags inflate to a greater height than high-pressure bags, up to how many feet?

• A. 4 feet
• B. 6 feet
• C. 8 feet
• D. 10 feet

Answer: (B)

Height you can achieve with a bag is tied to how much it can stretch upward under pressure. Low and medium-pressure bags aren’t as stiff, so when you inflate them they extend more vertically, which lets them lift higher before reaching their limits. High-pressure bags are sturdier and resist vertical expansion, tending to push outward rather than upward, so they don’t rise as high.

In typical use, the maximum height for these bags is about six feet. So six feet is the height you’d expect for low and medium-pressure bags, compared with higher heights that aren’t supported by standard low/medium-pressure configurations.