CHAPTER 14- WATER SUPPLY SYSTEMS correct answersCHAPTER 14- WATER SUPPLY SYSTEMS
1. A dry hydrant provides access to a correct answersStatic water source
2. An object in motion possesses which kind of energy as a result of that motion? correct answersKinetic
3. Fire fighters may need to hold on to the _______ while filling a self-expanding portable tank? correct
answersCollar
4. How close must a fire engine get to a static water source to be able to draft directly from it through
hard suction hose? correct answers20 feet
5. How many gallons per minute can a tanker shuttle operation deliver without interruption? correct
answersSeveral hundred
6. In general, mobile water supply apparatus (tankers) carry ___________ of water. correct answers1000
to 3500 gallons
7. Pressure in a water distribution system during average consumption is _____________ pressure.
correct answersNormal operating
8. What is the maximum capacity of typical portable water tanks? correct answers5000 gallons
9. What is the realistic minimum usable residual pressure from a water distribution system for
firefighting operations? correct answers20 psi
10. When water is motionless, which kind of energy does it have? correct answersPotential
, 11. A pitot gauge is used to calculate correct answersVolume of flowing water
12. Fire hydrants should be inspected at least once every __________ months correct answers12
13. How can you determine that a dry-barrel hydrant is still draining? correct answersPlace a hand over
an outlet and feel for suction
14. The NFPA recommends color-coding hydrants to indicate: correct answersAvailable flow
15. The pipes that deliver water from the treatment facility for distribution are correct answersMains
16. The pipes that deliver water to users and hydrants on individual streets are correct
answersDistributors
17. What is the minimum recommended pressure for water coming from a fire hydrant? correct
answers20 psi
18. Where are dry-barrel hydrants typically located? correct answersCold climates
19. Which is the term for the large discharge opening on a fire hydrant? correct answersSteamer
20. Which pipe pattern supplies water to hydrants from more than one direction? correct answersGrid
21. A jet siphon is used for which application? correct answersTransferring water between portable tanks
22. According to the NFPA, What is the minimum distance between the center of a fire hydrant outlet
and the finished grade of the ground around the hydrant? correct answers18 inches
23. Another term for head pressure is _______ pressure. correct answersElevation