Engine Ops Ch 10,11, and 12 Flashcards
(19 cards)
Eng 10
Non-automatic sprinklers are usually found where? How are they supplied?
They are found in cellars and sub-cellars of old commercial bldgs. They depend solely on the FD to supply water.
Eng 10
T or F- Sprinkler systems should always be supplied with 3 1/2 hose.
True
Eng 10
If a sprinklered bldg. is not equipped with a standpipe, where should the first hose be stretched? Where should the second?
First line should be a handline and the second line used to augment the sprinkler system.
Eng 10
Supply hose connected to a sprinkler system should be charged when? when should engine officer order sprinkler system augmented/supplied?
When necessary. EnG OFF should order it supplied upon indication of a working fire (smoke, heat, visible fire, reports from employees or security guards
Eng 10
What should pressure should the sprinkler be supplied with?
it should START at 150 psi.
ENG 11
Who can order the use of a LCS?
Only the IC. This includes the first arriving engine using its deck pipe for a quick fire knockdown or exposure protection.
ENG 11
How should an LCS be used to warn members that may be operating inside that an LCS is about to be used?
It should be quickly swept through the building without stopping at any window or other opening.
ENG 11
When an Engine arrives at a taxpayer, vacant, or well involved bldg. tower ladder ops can be anticipated, What should the engine do if a hydrant is not in close proximity?
Drop a 3 1/2 line.
ENG 11
Note - AN engine company supplying an LCS during in-line pumping must be augmented as soon as possible.
Note
ENG 11
What are 3 times that an Engine should be augmented?
1) If pressure drops below 15psi
2) If the Eng is supplying more than two handlines
3) In- Line Pumping supplying a LCS.
ENG 12
When do kinks constitute a water loss?
When they are severe enough to reduce the extinguishment cabalities of a hoseline.
ENG 12
Note - The Engine Officer shall ensure that the fire is confined by closing a door and all membs are moved to an area of safe refuge if kinks reduce extinguishment capabilities.
Note
ENG 12
T or F. Stretching one extra length is desirable to allow the nozzle team to be re-directed to more distant area or to diminish the impact should a burst length occur and and a length of hose needs to be remove from the stretch.
True
Eng 12
When an engine officer calls for more pressure and the ECC responds that sufficient pressure is being supplied but there is a reduction in flow on the flow meter, it is an indication of what?
Kinks
**Do not correct kinks by adding more pressure!
ENG 12
When the Engine Officer reports that there is little or no water and the ECC sees an adequate pressure reading, increased flow on the flow meter, and the pumps RPMs are increasing automatically it is an indication of what?
A Burst length .
** once a burst length is confirmed by any member an urgent message shall be transmitted.***
ENG 12
How is line pressure determined?
Size + number of lengths + nozzle pressure+ elevation
Eng 12. If adding an extra length of 1 3/4, how do we do it?
Remove tip off of original nozzle and add extra length by connecting the female button the shut off.
Eng 12. For a fire in non - fireproof md without a well- hole, how can we get more hose from the existing line?
Sufficient hose may be found by raising the already charged hose line over the newel post onto the railing. ( Snake Stretch)
Eng 12. How do we add an extra length of 2 1/2 onto the front of a stretch?
Bring a length of 2 1/2 with the nozzle attached to the front of the line and remove the tip from the original nozzle. Attach a 11/2 x 2 1/2 increaser and attach new length.
- ***There will be a slight reduction in water flow ( GPM ) due to the friction loss and additional fittings and hose.
- * The 11/2 x2 1/2 increaser shall be carried in the standpipe kit connected to the 2 1/2 nozzle for easy access.**
