Pumping Apparatus Driver Operator Chapter 5 - Principles of Water| Questions and Answers with complete solution

Friction loss is that part of the total pressure lost: Select one: a. while water is stationary in pipes. b. as water contacts its intended object. c. as water moves through the atmosphere. d. while forcing water through pipe, fittings, fire hose, and adapters. See page 177 - d. while forcing water through pipe, fittings, fire hose, and adapters. When water converts to a gas, water vapor, or steam, the water: Select one: a. immediately dissipates so it is rarely visible. b. changes to droplets that will fall back to the surface. c. only becomes visible if the ambient air temperature is above 40° (4°C). d. only becomes visible as it rises away from the surface of the liquid and begins to condense. See page 167 - d. only becomes visible as it rises away from the surface of the liquid and begins to condense. Which term refers to any pressure less than atmospheric pressure? Select one: a. Vacuum b. Head pressure c. Static pressure d. Perfect vacuumSee page 175 - a. Vacuum