Which statement about the three basic types of lifting bags is true?

Which statement about the three basic types of lifting bags is true?

• A. They are High, Medium, and Low (pressure)
• B. They are all single-use
• C. They require electric power to operate
• D. They are non-pneumatic

Answer: (A)

Lifting bags used in rescue work are classified by the pressure they operate at—high, medium, and low pressure. This labeling matters because it tells you how quickly a bag inflates, how much force it can apply, and how the load is distributed when you lift. The three basic types correspond to those pressure levels, which is why the statement about high, medium, and low (pressure) is the best description. These bags are powered pneumatically, not by electricity coming from the bag itself, and they’re not inherently single-use. They’re inflated with an air supply from a pump or compressor, and many are designed to be reused after inspection. The other options don’t fit: they aren’t inherently single-use, they don’t require electric power to operate the bag itself, and they’re not non-pneumatic. The choice among high, medium, or low-pressure bags is what typically distinguishes the main types you’d work with.

Lifting bags used in rescue work are classified by the pressure they operate at—high, medium, and low pressure. This labeling matters because it tells you how quickly a bag inflates, how much force it can apply, and how the load is distributed when you lift. The three basic types correspond to those pressure levels, which is why the statement about high, medium, and low (pressure) is the best description.

These bags are powered pneumatically, not by electricity coming from the bag itself, and they’re not inherently single-use. They’re inflated with an air supply from a pump or compressor, and many are designed to be reused after inspection. The other options don’t fit: they aren’t inherently single-use, they don’t require electric power to operate the bag itself, and they’re not non-pneumatic. The choice among high, medium, or low-pressure bags is what typically distinguishes the main types you’d work with.