Firefighting Ops Flashcards
Normal internal temps of Catalytic Converter _______. Normal outside surface temp _______. FFOps 1
1300-1600, 1000 degrees
Fuel Evaporation Control System vacuum relief set to operate at ____ and a pressure relief valve set to open at _____. FFOps 1
3/8 psi, 1 psi
The act of cooling the fuel tank on auto fires with a second hose should be considered appropriate from both a tactical and safety standpoint. FFOps 1
TRUE
Veh Fire apparatus positioned at least ____ in front of veh and at least ____ to rear of veh. FFOps 1
50 feet; 100 ft
1st handline goes to the ___________ with 2nd handline going to the __________ using a _________ pattern. FFOps 1
passenger comp, fuel tank, wider fog
You should not remove the fuel cap ofvehicles on firefor the purpose of relieving excess pressure. FFOps 1
TRUE
If the temp produced by the veh fire reaches in excess of ____ degrees, auto ignition make occur rupturing a protective disk and venting argon. FFOps 1
480
At ____ degrees the initiator component of undeployed airbags will auto ignite. FFOps 1
750
Some airbags are designed to auto inflate at repeated and prolonged temps above _______ degrees. FFOps 1
250
Tell tale sign of an Electric Vehicle (EV or Hybrid Electric Vehicle BEV) is the international _______ color associated w/the wiring system. FFOps 1
Orange
In EV cars there is a delay of _____ mins b/t the time the power is cut and the system is de-energized of all of it’s stored energy. FFOps 1
5 to 10
Large EV fires can be safely controlled w/water; if the fire involves the batteries & is minor in nature consider utilizing a “type” D dry chem extinguisher. FFOps 1
TRUE
Use a ________ to dilute toxic smoke from a burning sodium and sulfur battery. FFOps 1
Water fog
With more plastics in today’s vehicles currently there is over_____ lbs of combustible material in vehicles. FFOps 1
900
Isolate E85 spill for at least_____ ftin all directions. FFOps 2
150ft or 50 meters
Be cautioned that E85 has a very___ flash point; use of water spray when fighting fire may be inefficient. FFOps 2
low
To extinguish large fires involving E85 fuel you should use straight streams. FFOps 2
FALSE
For large spills of E85, consider downwind evac for at least __________. FFOps 2
1000ft or 300 meters
If a tank, rail car or tank truck is involved in an E85 fire, isolate for ___________ and consider evacuation for ___________ in all directions. FFOps 2
1/2 mile or 800 meters, 1/2 mile or 800 m
Metro fleet buses contain___ CNG tanks that operate at_____ psi. Each tank has an independent shut-off located at the end of each tank. FFOps 3
7, 3600
There are ___ PRDs (pressure relief devices) located in the roof area which will activate @ ___ psi or when the tank is heated to ____ degrees. FFOps 3
8, 5400, 220
There are___ methane sensors located on the bus w/2 in the tank compartment & 2 in the engine compartment. Sensors alert the driver to leaks in 2 modes: “trace” and “significant”. If a______ alert is activated the engine will shut down. FFOps 3
4, significant
CNG burns w/ an _______ flame and has a flashpoint of _____ degreesFFOps 3
orange, 560
On Metro CNG buses temperature sensors release an extinguishing agent when reaching a temp of ______which can also be manually activated by the driver near his driving position. FFOps 3
280
The 7 tanks are filled w/a CNG that is mostly made up of __________. FFOps 3
Methane
The fueling compartment door is located_______ and contains a fuel shut off located inside the door. To shutdown the system turn the lever____ degreesor ____ to the piping. FFOps 3
in the right rear of the bus, 90, perpendicular
For CNG minor leaks remove ignition sources ____ ft and ____ ft for major leaks. FFOps 3
100, 300
Although some vehicles running Propane are marked, there are no federal or city regulations that require the labeling or placarding of such vehicles. FFOps 4
TRUE
Propane gas is _____ than air, has a vapor density of ____, and an expansion ratio of ___________. FFOps 4
heavier, 1.6, and 270 to 1
Propane gas fueled vehicles have fuel cylinders that hold approx ___ gal located in the ____ of the vehicle. FFOps 4
25, trunk
The greatest danger after a helicopter crash is ________. FFOps 5
fire
All onlookers should be kept a minimum of_____ft from the helicoptercrash scene. FFOps 5
1500
Members should expect a potential____ gal of fuel on board the aircraft at any crash scene. FFOps 5
100
The safest area of a helicopter crash is __________. FFOps 5
inside the helicopter
Helicopter landing zoneson streets and thoroughfares stop traffic ____ ft in all directions w/lead vehicles lights turned off. FFOps 5
150
Helicopter landing zones in a field or park a minimum diameter of _______ ft is preferred. FFOps 5
100
When aircraft is grounded post a guard at the rear of the aircraft just outside the perimeter (____ ft) to alert people of tail rotor. FFOps 5
100
________ It will react violently w/water and depending on the volume involved________extinguishers are required. FFOps 5
Magnesium, class D (dry powder)
_________ Although lightweight it presents extreme extrication challenges. FFOps 5
Titanium
_________ LIghtweight and will lose structural support @ the melting point of ______ to _____ degrees. FFOps 5
Aluminum, 700 to 800
If two fog streams are of the same_______ and the water droplets had the same initial ______, the one containing the most water will have the greatest reach b/c it will have greater momentum. FFOps 6
diameter, velocity
Fog streams are superior to solid streams when their heat absorption qualities are compared, but fog streams must have sufficient volume to penetrate the heated area. FFOps 6
TRUE
Water cannot absorb its full capacity of heat unless it is completely converted into _______. FFOps 6
steam
Tests have shown that_________ motion of the nozzle is usually more satisfactory. FFOps 6
circular
The number of fog streams to use should be determined by the______ ______area involved & the______ of the nozzles. FFOps 6
cubic foot, volume
The____ degreeangle produces a good combination of reach and fog pattern, no matter what the size of the hose. FFOps 6
30
In order to produce images that better distinguish b/t objects in the overall temp range, the TIC will automatically operate b/t what’s called LOW and HIGH sensitivity modes.HIGH sensitivity mode operates up to approx _____ degrees. FFOps 7
300
The TIC does not transmit thru glass or water, may reflect off of smooth surfaces, not able to view objects thru dense material, will not define a hole in the floor, and images may be affected by two way radios. FFOps 7
TRUE
NONE of the TIC’s currently in use by DCFD are rated as intrinsically safe. FFOps 7
TRUE
The TIC will focus on an object from ______ ft to ________. FFOps 7
3, infinity
The TIC shows the user a ________ dimensional view therefore the user must scan all sides at all levels of each area or room. FFOps 7
2
____________ will carry their assigned TIC and will first scan the ________ area and end the scan on the ________. FFOps 7
Truck OICs, ceiling, floor
All _________ team members and the __________ and _______ will carry and operate their assigned TIC on all structure fire incidents. FFOps 7
rescue squad, 2nd due BFC, SO
Once the 12v battery cables of Hybrid vehicles are cutthe high voltage relays will de-energize shutting down all high voltage to the vehicle. FFOps 8
FALSE
If the”______” light on the dash is illuminated, then there is a possibility that the converter will supply power to the high voltage control module and high voltage power will still be running through the orange cables. FFOps 8
Ready
The “Smart Key” does not have to be in the ignition only within ____ to _____ feet of the vehicle. FFOps 8
10 to 15
Some hybrid vehicle airbags will maintain power for a few mins after battery is disconnected. FFOps 8
TRUE
A Fire Watch is required to be implemented for system outages for maintenance of ____ hrs or longer, blocked or locked means of egress, etc. FFOps 9
4
After normal bus hours, the________________________ is the designated Fire Marshal representative. FFOps 9
on-duty fire investigations unit platoon commander
If a Fire Watch is implemented by a Fire Marshall representatitve thena journal entry shall be recorded at FIU and a SR detailing all relevant info shall be submitted to the Fire Marshal w/in____ hrs. FFOps 9
24
If a fire watch cannot be implemented w/in___ hour or the problem mitigated, it will be the responsibility of the Fire Marshal’s Office rep to remain on the scene and institute a call back for Fire Prevention personnel to institute a fire watch. FFOps 9
1
DC Fire Dept does not consider the testing and maintenance of fire protection system’s to be an “outage” if the system is restored w/in___ hrs. FFOps 9
4
_____ ______is recommended when fire suppression activities are in the vicinity of electrical equipment. FFOps 10
Fog pattern
Priority __ Electrical Emergency: Any electrical problem in a structure that prohibits “fire overhaul” b/c the main electrical switch cannot be controlled to interrupt power to that location. FFOps 10
2
Priority __ Electrical Emergency:Any vehicle accident that has a downed power line or power pole, but does not hinder rescue or emergency care.
FFOps 10
2
Priority ___ Electrical Emer:Include power outages b/c of blown fuses, tripped transformer, tree limbs on wires or loose guy wire. FFOps 10
3
If the wire is found already down upon arrival and no fire has resulted, or is likely to result, companies may report in service, provided a member of__________ is at the scene to warn persons of the danger. FFOps 10
the police dept
___________ An engine w/ a supply of LDH staffed w/ a min of a driver. FFOps 11
Water Supply Engine (WSE)
____________ a WSE in tandem w/ shared house engine company. FFOps 11
Water Supply Engine Company (WSEC)
_____________ (3) WSECs and a BFC
Water Supply Task Force
Radio channel _____ will be the designated channel for the Water Supply Task Force to operate. FFOps 11
A-13
The IC may designate a _______ _________ Chief the Water Supply Task Force Leader. FFOps 11
Logistics Section
The _________ ( or ________) will direct the staging, positioning and the operations of the apparatus. FFOps 11
Task Force Leader, Logistics Section Chief
When arriving on the scene, WSTF shall stage ___________ away to access to the 3rd and 4th due engines. FFOps 11
2 blocks
When in staging companies should identify a water source ideally greater than _______ gpm in the area. FFOps 11
1500
Companies can identify a water source by contacting the FLO on _____ or by Google Earth on the MDC. FFOps 11
C-16
Companies will select high flow hydrants greater than 1000 gpms within 1000ft or roughly 2 blocks but not more than the hose bed capacity of _____ ft. FFOps 11
1500
The “_____ ______ ___” allows the full potential of the hydrant to be used by allowing a direct path for the water to enter the pump on the right side steamer connection. FFOps 11
Heavy Hook Up
Companies should open the hydrant after connecting and note the ________ _________. FFOps 11
Static Pressure
The Fire Commander provides cavitation protection when in the __________ mode. FFOps 11
Pressure
When ordered, begin filling the LDH with ________ pressure only. FFOps 11
hydrant
Once your intake guage returns to the original static pressure place the _____ ___ _____. FFOps 11
pumps in gear
After a constant flow on the fireground is established the______ pressure on the_____ gauge will be noted to calculate the hydrant capacity.FFOps 11
residual, intake
3 times the current flow avail at the hydrant ___________ FFOps 11
Less than 10%
2 times the current flow avail at the hydrant ____________ FFOps 11
11 to 15%
1 time the current flow avail at the hydrant _____________ FFOps 11
16 to 25%
An amount less than the current flow avail at the hydrant _____________ FFOps 11
greater than 25%
Maintain no less than ____ psi of intake pressure. FFOps 11
20
When discharging water, calculate to allow ___ psi at the portable hydrant and figure ___ psi at the next pump in a relay. FFOps 11
20, 20
