Driver Engineer Guidebook Flashcards
There are three factors that affect friction loss. They are:
- The diameter of the hose
- The volume of water flowing expressed in gpm
- The length of the hose lay
_______ is the pressure at a specific pump discharge.
Discharge pressure (DP)
The use of a single hose line, typically 2 1/2”, 4-inch, or 5-inch, to supply two smaller attack lines is referred to as a ______ evolution.
wyed line
Connect the appropriate adapter ( ____” FEC or _____” NST)
4” FEC or 4 1/2” NST
Remove the steamer cap of the hydrant, open hydrant until a clear, solid stream is produced; flow for ___ - ___ seconds and then close the hydrant.
5 - 10
When spotting apparatus with hydrant on the driver’s side you will need _____ feet.
15
When spotting apparatus with hydrant on the officer’s side you will need ____ feet.
4
In sprinkler and standpipe fire protection systems, the vertical pipes that carry water to the upper floors are called _____ and are usually _____ inches or more in diameter.
risers , 4
Friction loss should be accounted for if the pipe diameter is less than ____ inches.
4
The most common pumping situations for multi-story buildings for this department are:
- Through lines laid up stairs taking into consideration exiting and movement of suppresion forces.
- Through a line or lines suspended on the outside of a building
- To a sprinkler system
- To a standpipe/sprinkler system
T or F: It should be noted that elevation means above or below a given point.
True
As it relates to hydraulic calculations, the _______ refers to the midline of the pump.
elevation point
There should never be less than _____ 2 1/2 inch lines supplying a sprinkler system FDC.
two
Suspended Line Ops: The line should be secured at the ____ floor, the ____ floor and every ____ floor between the top and bottom.
first, fire, third
Suspended Line Ops: There should never be more than ___ floors between secured points.
2
The pump operator should maintain ____ psi to the sprinkler system FDC.
150
If the fire continues to progress, pertaining to a sprinkler system FDC, increase the DP to _____ psi maximum, by _____ psi increments.
200 , 25
______ systems are the main source of water supply for fighting fires in high-rise or large buildings.
Standpipe
Class I :
2 1/2 inch oulets for fire department use
Class II :
1 1/2 inch hose outlets for occupant use
Class III :
Combination standpipe, incorporates both Class I and Class II into a single system
In most cases, buildings that are _____ stories, or ____ feet and above, have standpipe systems.
five, fifty
Buildings of less than ____ stories may have dry systems, if they have any at all.
five
All new buildings that are ___ stories or more in height, except for open air parking structures that are a minimum of 20 feet from other structures, shall be fire sprinkler protected.
three