Equipment II Correct! Incorrect! 1. __________ fans can generate high pressure and efficiently move high volumes of air. Tube axial Cross flow Centrifugal Propeller View the lesson section again Correct! Incorrect! 2. Pumps move fluids because they transfer __________ to the fluid. heat pressure energy View the lesson section again Correct! Incorrect! 3. Which fact is true when referring to positive displacement pumps. Flow rates vary. Pump at lower pressures. Pump at very high pressures Require external check valves. View the lesson section again