Ch. 14: Water Supply Questions with Accurate Answers

Ch. 14: Water Supply Questions
with Accurate Answers
A jet siphon is used for which application
a. Expediting discharge from a mobile water supply apparatus
b. Transferring water between portable tanks
c. Priming a dry pump
d. Exhausting air from hard suction correct answer b. Transferring water between
portable tanks


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
a. 24"
b. 12"
c. 18"
d. 30" correct answer c. 18"


Another term for head pressure is __________ pressure
a. Elevation
b. Flow
c. Static
d. Residual correct answer a. Elevation


Friction loss is _____ proportional to the length of a hose
a. Variably

, b. Inversely
c. Indirectly
d. Directly correct answer d. Directly


In a well-designed water distribution system, which type of pattern do the water
mains follow?
a. Loop
b. Branched
c. Parallel
d. Grid correct answer d. Grid


In areas of the western US where aircraft are used to fight wildland fires, which
term is used for automobile water supply apparatus?
a. Tender
b. Water truck
c. Tanker
d. Tank truck correct answer a. Tender


On a wet-barrel hydrant, where is the valve located?
a. On each outlet
b. At the base
c. In the bonnet
d. In the barrel correct answer a. On each outlet


Portable pumps can deliver a maximum of