🔍 Key Concepts

• Purpose of a P-tank (pressure tank) discharge line on a supply boat • What happens when compressed air is suddenly released from an open hose end • How weighting and securing a hose affects its movement and safety

💭 Think About

• Think about how an unsecured hose behaves when high-pressure air is suddenly released from the open end. What motion would you expect? • Which of the listed options are true physical effects of adding weight and securing the hose, and which seem unrelated to what weight would actually do? • Does attaching a short, weighted hose have anything to do with controlling pressure/flow rate inside the line, or more to do with controlling where and how the open end can move?

✅ Before You Answer

• Consider which choice(s) directly relate to preventing dangerous movement or whipping of the hose when the air discharges. • Ask yourself whether weight alone is a realistic method of reducing flow rate in a pressurized air line. • Verify which options are plausible safety reasons versus reasons that don’t match how pressurized air and hoses behave physically.