Engine Ops Flashcards
What is an indication of kinks?
T or F- increasing pressure and quickly resolve most kinks.
Indication of kinks- good pressure with a reduction in flow at the flow meter
False- do not increase pressure to try to resolve a kink
What is a sign of a burst length (at the pump panel)?
Adequate pressure, increased flow, and an increase in RPM’s of the pumps
Short stretch
Adding a length to the back of the stretch may be impractical when more then ____ lengths were originally deployed.
More then 4
Do you need a special fitting when:
You have short stretch a 1 3/4” and are going to add a length of 1 3/4”?
You have short stretched a 2 1/2” and will be adding a 2 1/2” length?
1 3/4” to 1 3/4” no fitting needed
2 1/2” to 2 1/2” you will need a 1 1/2” to 2 1/2” increaser
Buildings that require a stretch of more the _#___ lengths from the standpipe should be entered into CIDS for that reason.
More then 3 lengths
At some standpipes there will be “occupant use” hose. Who and when can this be stretched?
Ladder or rescue companies can use this line if operating remotely from an engine company and it is used to save lives.
What are the following standpipe Siamese colors for?
1) green
2) yellow
3) red
4) silver
Green- automatic sprinkler
Yellow- combo standpipe and sprinkler
Red- standpipe
Silver- non-automatic sprinkler or perforated pipe
Standpipes should alway be supplied by ____ hose (size)? Whenever possible how many engines should supply a standpipe
Supply with 3 1/2” hose
When possible 2 engines should supply it
A second engine is going to supply the standpipe system. Where should they hook up?
At a floor outlet, they should not connect to the Siamese the 1st engine is using
T or F
As a general rule, one engine should be supplying the standpipe system for each line stretched. 3 lines stretched = 3 engines supplying
True
T or F
If the 1st engine is supplying both standpipe and sprinkler systems, the second and third engine MUST stretch additional lines to augment BOTH systems.
True
What is in a standpipe kit?
2 1/2” controlling nozzle Pipe wrench Spinners In line pressure gauge Door chocks Special adapters
At a standpipe operation with water flowing what should the pressure be at the outlet for 3 lengths? 4 lengths?
3 lengths 70psi
4 lengths 80psi
What is considered high pressure pumping?
A high pressure engine ( two stage) can pump up to what pressure?
High pressure pumping is above 250psi
A high pressure engine can pump up to 600psi
A 3rd stage engine can pump a maximum pressure of what?
500 gpm at 700psi
High pressure supply hose has its couplings pained what color?
White
Whenever possible an engine supplying high pressure should be within __#__ length(s) of the fire department connection being supplied. No more then __#__ lengths of high pressure hose should be stretched to a fire department connection.
1 length is ideal, no more then 2 lengths.
When operating in high pressure how big is the safety zone?
50ft all around the engine
3rd stage pumpers are proffered when pumping over pressures over ___psi. Who can order the use of a 3rd stage pumper?
500psi
An IC of the rank battalion chief or higher
T or F
When using a high pressure, the supply lines need to be tethered and pressure will be increased slowly to avoid damaging the standpipe system.
True
When is an air pressure standpipe required?
The construction of buildings over 75ft and the destruction of buildings with an existing standpipe.
An air pressurized standpipe system is required to have as many relief valves as needed to bleed the system in no more then __#__ minutes
No more then 3 minutes
A sprinkler system should always be supplied by what size hose?
3 1/2”
Pump discharge pressure for supplying a sprinkler system should start at what psi?
Start at 150psi
