Ch. 11 water supply distribution systems Flashcards
On page 466 of Fire Inspection and Code Enforcement, two basic types of water supply systems in North America:
public and private systems
On page 467 of Fire Inspection and Code Enforcement, ________ is the best method for evaluating the capabilities of the system.
reviewing documentation
On page 470 of Fire Inspection and Code Enforcement, elevated tanks have several problems in providing fire protection water supplies. The most important of those problems is the limitation of pressure available from the tank. A tank has to be ____ feet high to generate a pressure of only ___ psi.
100 feet; 43 psi
On page 470 of Fire Inspection and Code Enforcement, early suppression fast response sprinklers used for warehouse protection require at least ___ psi.
50 psi
On page 470 of Fire Inspection and Code Enforcement, three methods for moving water through the system are:
gravity
direct pumping
combination
On page 472 of Fire Inspection and Code Enforcement, a water distribution system consists of 3 types of water mains:
Primary feeders
Secondary feeders
Distributors
On page 474 of Fire Inspection and Code Enforcement, valves should be exercised at least _____ to verify that they are in good working condition.
once a year
On page 474 of Fire Inspection and Code Enforcement, the _____ and the ______ are two common indicator valves.
post indicator valve (PIV)
outside stem and yoke (OS&Y)
On page 477 of Fire Inspection and Code Enforcement, hydrant discharge outlets are considered standard if they contain the following two components:
- at least one large outlet (steamer connection)
2. two hose outlet nozzles for 2 1/2 inch couplings
On page 477 of Fire Inspection and Code Enforcement, hydrants may be painted _______ to indicate that they contain non-potable water.
violet
On page 479 of Fire Inspection and Code Enforcement, light blue marked hydrants deliver 1500 gpm or greater is what class of hydrant?
Class AA
On page 479 of Fire Inspection and Code Enforcement, green marked hydrants deliver 1000 - 1499 gpm is what class of hydrant?
Class A
On page 479 of Fire Inspection and Code Enforcement, orange marked hydrants deliver 500 - 999 gpm is what class of hydrant?
Class B
On page 479 of Fire Inspection and Code Enforcement, red marked hydrants deliver less than 500 gpm is what class of hydrant?
Class C
On page 480 of Fire Inspection and Code Enforcement, the clearance between the bottom of the butt and the grade should be at least __ inches.
15 inches
On page 481 of Fire Inspection and Code Enforcement, The procedure for using a pitot tube and gauge is as follows: Step 1:
Open petcock, verify that air chamber is closed, close petcock.
On page 481 of Fire Inspection and Code Enforcement, The procedure for using a pitot tube and gauge is as follows: Step 2:
edge blade into the stream approximately one-half the diameter of the opening
On page 481 of Fire Inspection and Code Enforcement, The procedure for using a pitot tube and gauge is as follows: Step 3:
Check velocity reading on gauge
On page 481 of Fire Inspection and Code Enforcement, The procedure for using a pitot tube and gauge is as follows: Step 4:
open petcock and drain water
On page 482 of Fire Inspection and Code Enforcement, three common types of hydrant outlets:
Rounded (0.9)
Square (0.8)
Projecting (0.7)
On page 482 of Fire Inspection and Code Enforcement, a ruler with a scale that measures to at least _____ of an inch should be used to measure the diameter of the outlet or nozzle opening.
1 / 16th
On page 485 of Fire Inspection and Code Enforcement, the procedure for conducting an available water test is as follows: Step 1:
locate personnel at hydrant
On page 485 of Fire Inspection and Code Enforcement, the procedure for conducting an available water test is as follows: Step 2:
Remove hydrant cap from test hydrant and attach pressure gauge
On page 486 of Fire Inspection and Code Enforcement, the procedure for conducting an available water test is as follows: Step 3:
Read and record static pressure
