capt session 16 review fill-in Flashcards
TB#4 The primary consideration (s) for a tank truck/trailer incident in priority order is/are:
preservation of life
property
& the environment
TB#4 The tank portion of a tank truck/trailer vehicle is considered a ____. The 3 basic types of vehicle configurations and there capacities are:
non pressurized liquid tank
single tank with two axles or three axles 3000 and 5000 gallons
Tank tractor with semi trailer , 1 tank approx 40 ft with capacity of 9000 gallons
tank truck pulling 2 axle trailer each 20ft long capacity 4200 gallons on truck and trailer tank has 4800 gallon tank = 9000 gallons
TB# 4 Tanks have two to four compartments. When carrying flammable products with different flash points in the same tank, _____ are required.
Double bulk heads
TB# 4 If a bulkhead is damaged, the void between the tank space can hold/contain_____ gallons:
200 gallons
TB#4 Baffles are installed in the tank primarily for:
Tank strength
TB#4 The _____ is legally responsible for product removal on state highways, freeways or city streets:
ultimately the owner is legally responsible
TB#4 General safety precautions for a fire/truck trailer tanker incident:
Full PPE’s SCBA
Avoid contact with any product & breathing of vapors
Avoid contact with tank
Avoid breaking foam blanket
Avoid being covered with foam
Isolate incident set perimeters using combustible gas indicators
Deny entry to those not needed and or authorized
approach from uphill upwind side
TB#4 Vacuum trucks are classified by cleanliness standards which are:
Dirty-tank is empty of product but has not been cleaned
Clean- tank is empty of product and has been washed with water but there is possible trace of water and product from previous load
Super Clean- Tank has been chemically cleaned and is free of product
“request clean tank” super clean is unnecessarily expensive
TB#4 Action to take when on-scene of a tank /trailer incident when there is a leak with no fire include:
Eliminate potential ignition source a minimum of 100ft from spill
Turn off ignition if possible
Use combustible gas indicator to verify atmosphere around
battery terminal , or shut off switch is below 10% lel before disconnecting
Set incident perimeters using appropriate monitors,contain run off
affected area surrounding the tank shall be covered with foam
TB#4 Actions to take when on-scene of a tank truck/trailer incident when there is a fire involving a spilled liquid or the tanker is on fire:
Spot apparatus uphill and preferably upwind of incident
Secure water supply sufficient for multiple master streams
Do not use plain water unless it is to perform a rescue
Make fire attack using foam lines
Use dikes to keep a spilled flowing or burning product from the storm drain.
IC to determine whether defensive or offensive attack or combination of both
TB#4 At a tank truck/trailer incident determine the amount of foam needed. Plan for a ______ supply for suppression and a _____ supply for maintenance.
15 min supply of concentrate
15 min supply of for maintenance
TB#4 Aluminum tanks will melt at ____; exposed fuel will burn at the _____ level; and gasoline will burn at a rate of _____per hour:
@ about 1200 degrees
liquid level
1 foot per hour
TB#164 The transitional attack option is defined as the _____ application of water with a ____ from the ____ of a structure that provides a brief _____ by cooling the environment prior to transitioning into an ____:
Coordinated Straight stream Exterior Break of the fire triangle Offensive attack
TB#164 The transitional attack option should be considered when any of the following conditions exits:
Visible fire or high velocity turbulent smoke indicative of imminent flashover from any door or window with consideration to the following:
1st conditions at the point of access make it unsafe to enter,
Entry is delayed by forcible entry challenges
Ventilation is delayed or non existent
Water supply is delayed or insufficient
Excessive storage or packrat conditions
TB#164 Critical tactical considerations that must be identified and assessed prior to executing a transitional attack option are:
Officers should attempt to gain as much situational awareness as possible (360 degree size up)
Always communicate and coordinate your tactical intent on the radio channel to all companies prior to employing this tactic
Lafd personnel shall not be inside the structure at time of application
Only apply water into windows or doors that have fire showing or volatile smoke indicators of imminent flashover
Do not employ if window pane is still intact
Transitional attack streams shall only flow water until a change in conditions are see, bulk of fire knocked down
critical on scene observation must be thoroughly assessed