Chapter Quiz

  1. Friction loss is the reduction of the energy of water due to friction created by the roughness of the pipe wall.
    1. True
    2. False
  2. Surges are short pressure spikes in the distribution system that occur due to
    1. Opening or closing valves or fire hydrants too quickly
    2. Pumps suddenly deactivating
    3. Rapid change in flow velocity
    4. All of the above
  3. Types of backflow prevention devices include
    1. A physical air gap
    2. A Vacuum Breaker
    3. A double-check valve assembly
    4. All of the above
  4. PA Code, Chapter 109 limits pressure to no less than 25 psi and no more than 125 psi during normal conditions.
    1. True
    2. False
  5. The minimum pressure allowed in a distribution system at any time is
    1. 5 psi
    2. 10 psi
    3. 15 psi
    4. 20 psi