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2024 Promotional Exam > Rescue Operations Bulletins > Flashcards

Rescue Operations Bulletins Flashcards

1
Q

Elevators, there are two doors, the outer or ____ ____, and the inner or ___ _____. The shaft door usually has __ _____

A

shaft door, car door, no power

Rescue Ops. Bulletin No. 1 pg. 1

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2
Q

Generally, there are ___ connecting the shaft door to the car door and when the car door opens, it also _____ opens the shaft door.

A

levers, mechanically

Rescue Ops. Bulletin No. 1 pg. 1

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3
Q

A key-way (keyhole) located where on an elevator, provides a means of releasing a latch and opening the door manually.

A

In the upper corner of a shaft door.

Rescue Ops. Bulletin No. 1 pg. 1

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4
Q

A key-way (keyhole) is located in/at the ___ of a shaft door and provides a means of releasing a latch and opening the door manually.

A

Upper Corner

Rescue Ops Bulletin No. 1 pg. 1

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5
Q

On single shaft elevators, the keyways are usually located where?

A

in the shaft doors on each floor including the basement.

Rescue Ops. Bulletin No. 1 pg. 1

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6
Q

Where there is a bank elevator system (more than one car to a shaft) the key-ways are usually where?

A

located in the shaft doors of the basement, first and top floors only.

Rescue Ops. Bulletin No. 1 pg. 1

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7
Q

Elevator cars suspended by steel wire cables have a brake between the electric motor and the winding drum. During normal operation what happens? When the electric current is cut off, what happens?

A

An electrical magnet holds the brake shoes in the open position. When the electric current is cut off, demagnetizing this magnet, the brake shoes are closed and held closed by spring pressure; the winding drum then cannot move.

Rescue Ops. Bulletin No. 1 pg. 2

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8
Q

Hydraulic elevators are operated by what?

A

Piston and cylinder

Rescue Ops. Bulletin No. 1 pg. 2

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9
Q

How do hydraulic elevators operate?

A

The elevator car rides on the piston and the cylinder is recessed in the ground. The electrically driven hydraulic pump is located next to the cylinder and the electric switch is usually located at the hydraulic pump.

Rescue Ops. Bulletin No. 1 pg. 2

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10
Q

What happens when the flow of electricity is interrupted on hydraulic elevators?

A

Operating solenoids cause the oil to be locked in the system, thereby stopping the movement of the car.

Rescue Ops. Bulletin No. 1 pg. 2

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11
Q

If the cables on an elevator are damaged or there is slack in the cables always work where?

A

above the car.

Rescue Ops. Bulletin No. 1 pg. 2

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12
Q

Once the operating key is removed from the fireman’s switch at the lobby and inserted in the “Emergency Fireman’s Switch” in the elevator “Car Station”, who has control of the elevator?

A

When the “Emergency Fireman’s Switch is activated, complete control is placed on the car (hall buttons are inactive.)

Rescue Ops. Bulletin No. 1 pg. 4

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13
Q

Once the “Emergency Fireman’s Switch” is activated, to operate the car, use what?

A

Either the “Door Close Button” or a “Floor Button.” When either is used, the doors will close only by constant pressure on the button (if the button is released, the door will reverse.)

Rescue Ops. Bulletin No. 1 pg. 4

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14
Q

Once the “Emergency Fireman’s Switch” is activated and the doors are fully closed, select the floor and the car will travel to same. The doors will not open until what?

A

The “Doors Open Button” is pressed, the doors will open with constant pressure only (if the button is released, the doors will reverse). The car will remain at the landing with the doors open until the buttons are operated again.

Rescue Ops. Bulletin No. 1 pg. 4

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15
Q

When the elevator is to be removed from fireman’s service, it is returned to the main lobby, and then what?

A

The operating key is removed from the “Car Station,” which will return the elevator(s) to automatic operation.

Rescue Ops. Bulletin No. 1 pg. 4

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16
Q

Elevators used in the Metro Rail System are of two types:

A

Electric Traction and Hydraulic.

Rescue Ops. Bulletin No. 1 pg. 4

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17
Q

Hydraulic elevators are utilized throughout the Metro Rail System and are primarily used for service between where?

A

mezzanine and platform levels.

Rescue Ops. Bulletin No. 1 pg. 4

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18
Q

Electric Traction elevators are located on the “A” Route (___ ____) from Dupont Circle, north into Maryland. These elevators are located on the “A” Route when the depth from surface to mezzanine exceed the height limitations of ______ ________

A

Red Line, hydraulic elevators

Rescue Ops. Bulletin No. 1 pg. 4

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19
Q

What are the Rescue procedures for Metro system traction elevators?

A
  1. Report to the kiosk and determine which elevator is stalled or has a problem. If the attendant hasn’t called for an elevator mechanic, request one.
  2. Contact the passengers through the elevator intercom system from the kiosk to determine their condition, the number aboard, and to make sure that they have not erroneously stalled the car by activating the “Emergency Stop Button” on the car’s control panel.
  3. Check the elevator console in the kiosk to determine that the “Out of Service,” “Override,” or “Emergency Stop” switches have not been activated in such a way as to cause the problem. (Remember the lights indicating activation of these switches could be burned out.)
  4. If the above procedures do not work, an attempt may be made to bring the elevator to the entrance level by using the “Fireman’s Emergency Elevator” key. “FEE” will be stamped on the key.
  5. If the above fails to move the elevator to the landing, proceed to the appropriate “Elevator Machine Room” which houses the elevator control machinery for the elevator that you are working on.
  6. After passenger removal, the electric cut-off shall be tagged. Ensure that all hoistway doors are closed and locked.

Rescue Ops. Bulletin No. 1 pg. 4-6

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20
Q

Each elevator in a Metro Station will have a number displayed on it (usually on the ___ __ ___ ___ ___ ____) and by matching that number with what that number with the same number in the “____ _____ ____” you will know that you are in the correct room.

A

panel by the hoist-way door, “Elevator Machine Room”

Rescue Ops. Bulletin No. 1 pg. 5

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21
Q

Under no circumstances shall the brakes on the elevator be ______ to allow the elevator to move to a landing.

A

released

Rescue Ops. Bulletin No. 1 pg. 5,6

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22
Q

The Metro elevator emergency procedures, in the interest of safety, should be used with a minimum of how many personnel?

A

five (5) persons and two (2) portable radios. If resources of this level are not on the scene, additional assistance should be requested.

Rescue Ops. Bulletin No. 1 pg. 6

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23
Q

On Metro elevator emergencies, if in doubt about any course of action, request whom?

A

The elevator mechanic through Fire Department Headquarters or OCC and await his/her arrival.

Rescue Ops. Bulletin No. 1 pg. 6

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24
Q

What stations have Electric Traction Elevators?

A

Friendship Heights
Tenleytown
Van Ness/UDC
Cleveland Park
Woodley Park/Zoo
Dupont Circle

Rescue Ops. Bulletin No. 1 pg. 6

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25
Q

There are three main components of the air bag that helps to accomplish the goal of the airbag protection system, what are they?

A
  1. The bag itself, which is made of a thin, nylon fabric, which is folded into the steering wheel, dashboard, and more recently, the seat or door.
  2. The sensor, which is the device that tells the air bag to inflate. The air bag inflates at a collision force equal to running into a brink wall at 10-14 miles per hour.
  3. The air bag inflation system which contains sodium azide (Nan3) and is designed to react with the potassium nitrate (KNO3) to produce nitrogen gas. The heated nitrogen inflates the air bag.

Rescue Ops. Bulletin No. 3 pg. 1

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26
Q

In a frontal or side impact of sufficient severity (comparable to a collision into a solid wall at __ -__ mph or above), sensors in the vehicle detect the sudden deceleration and trigger the inflator module

A

10-14 pmh

Rescue Ops. Bulletin No. 3 pg. 1

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27
Q

Vehicle airbags inflate in less than ____ ____ __ ___ _____, splitting open its protective cover and inflating in front or to the side of the occupant.

A

One-twentieth of a second

Rescue Ops. Bulletin No. 3 pg. 2

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28
Q

The airbag, once initiated, literally bursts from its storage site at up to a speed of up to ____ ____ per hour.

A

200 miles

Rescue Ops. Bulletin No. 3 pg. 2

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29
Q

There are three kinds of “smoke” produced during airbag deployment, what are they?

A
  1. Many people mistake the corn starch or talcum powder used to lubricate the bag as smoke.
  2. A sealant which is used to prolong the life of the airbag system can smoke when the airbag is deployed.
  3. During deployment, small particles from inside some bag systems are vented into the passenger compartment. These particles look like smoke and some particles are deposited as a powdery residue on and around the bag.

Rescue Ops. Bulletin No. 3 pg. 2

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30
Q

When an airbag deploys what residue may contain a small amount of potential skin irritant?

A

Sodium hydroxide. Hands should be washed with mild soap and water after handling a deployed bag.

Rescue Ops. Bulletin No. 3 pg. 2

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31
Q

After deployment some components within the air bag module will be hot for a short time, but they are relatively inaccessible and should pose no threat to rescue personnel or crash victims. However, personal contact with the steering wheel hub should be avoided for at least __ ______ after deployment.

A

15 minutes

Rescue Ops. Bulletin No. 3 pg. 2

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32
Q

Is there any sodium azide in the residue after an airbag deploys?

A

There is no detectable amount of sodium azide residue present in the passenger compartment after an airbag deployment.

Rescue Ops. Bulletin No. 3 pg. 2

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33
Q

Is the sodium azide canister likely to explode during a car fire?

A

No. The airbag is designed to inflate normally in the event that a vehicle fire causes the canister to be heated above 300*F. Consequently, it is possible that the airbag will deploy in a car fire, but there should be no fragmentation of the inflator.

Rescue Ops. Bulletin No. 3 pg. 2

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34
Q

If a vehicle has been involved in an accident with significant damage or airbag deployment, you will still need to ________ ___ ______ as soon as possible.

A

disconnect the battery.

Rescue Ops. Bulletin No. 3 pg. 3

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35
Q

Never delay starting rescue operations. Be cognizant of the position of the Rescuer in relation to the un-deployed airbags. If possible a minimum of ___ _ ___ ___ of space should be between the rescuer and the path of an un-deployed airbag.

A

10 to 14 inches

Rescue Ops. Bulletin No. 3 pg. 3

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36
Q

In the unlikely event that a driver or front seat passenger is pinned behind an un-deployed airbag and must be removed at once, extrication efforts should be performed from where?

A

The side of the entrapped victim, and away from the potential deployment path of the airbag. Do not place your body or objects against the airbag module.

Rescue Ops. Bulletin No. 3 pg. 3

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37
Q

Do not mechanically displace or cut through the ___ _____ unless the air bag system has been fully deactivated. At no time should anyone drill into the air bag module, or apply heat (___ ___ ____) in the area of the steering wheel hub or other airbag canister.

A

steering column, above 300 degrees

Rescue Ops. Bulletin No. 3 pg. 3

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38
Q

The airbag is designed to inflate normally in the event that a vehicle fire causes the canister to be heated above ____.

A

300’ F

Rescue Ops Bulletin No. 3 pg. 2

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39
Q

You must look for the airbag canister prior to making any cuts on the A, B, or C post. Remember to “___ __ ___.” Pry the plastic away from the post and peek behind it before you make a cut.

A

Pry and Peek

Rescue Ops. Bulletin No. 3 pg. 3

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40
Q

On rare occasions some airbags may have the ability to ____ ___ ___ ___ ___. Just because you see a deflated airbag doesn’t mean you are out of danger.

A

inflate more than one time.

Rescue Ops. Bulletin No. 3. pg. 3

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41
Q

What is the primary reason why members are to disconnect the battery or batteries as soon as possible.?

A

There can be several other airbags in the car that did not deploy, and care must be taken when operating around those airbags.

Rescue Ops. Bulletin No. 3. pg. 4

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42
Q

_____ _____ incidents are responsible for more multiple firefighter deaths than any other type of emergency.

A

Structural collapse

Rescue Ops. Bulletin No. 4 pg. 1

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43
Q

Definition. Cantilever Collapse

A

Formed when one end of the floor(s) or roof are hanging free because one or more of the walls have failed and the other end is still attached to the remaining wall(s).

Rescue Ops. Bulletin No. 4 pg. 1

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44
Q

Definition. Lean-to Collapse

A

Formed when one of the supporting walls fail or the floor or roof joist breaks or separates at one end causing one end of the floor or roof to rest on a lower floor.

Rescue Ops. Bulletin No. 4 pg. 1

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45
Q

Definition. Pancake Collapse

A

Formed when bearing walls or columns completely fail and an upper floor drops on lower floors cause them to collapse in the same manner.

Rescue Ops. Bulletin No. 4 pg. 1

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46
Q

Definition. Secondary Collapse

A

Any collapse that occurs after the initial collapse of a structure.

Rescue Ops. Bulletin No. 4 pg. 1

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47
Q

Definition. Surface Victims

A

Victims not trapped by the structure, usually found on top of the debris. They may be injured while attempting to evacuate.

Rescue Ops. Bulletin No. 4 pg. 1

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48
Q

Definition. V-Type Collapse

A

Formed when heavy loads cause a floor or roof to collapse near the center resulting in two void spaces along the outer walls.

Rescue Ops. Bulletin No. 4 pg. 1

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49
Q

What collapse is formed when heavy loads cause a floor or roof to collapse near the center resulting in two void spaces along the outer wall?

A

V-Type Collapse

Rescue Ops Bulletin No. 4 pg. 1

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50
Q

In response to any call for reported structural collapse, a Cave-In Task Force will automatically be dispatched. The dispatch will consist of the following:

A

Two Engine Companies, E15 and the next closest Engine Company
Closest Truck Company
Two Rescue Squads, RS3 and the next closest Rescue Squad
Special Operations Battalion Chief
Collapse Unit
Collapse Support Unit
Safety Officer
Hazardous Materials Uit
One BLS and one ALS unit (R-12 if available)
EMS Supervisor (EMS 1-6 if available)
Air Unit

Rescue Ops. Bulletin No. 4 pg. 2

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51
Q

When responding to structural collapse incidents, units with the exception of the first due Engine Company, shall initially stage at one location a minimum of ___ ___ from the incident. __ ___ enter the structure.

A

1500 feet, Do not

Rescue Ops. Bulletin No. 4 pg. 2

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52
Q

On a structural collapse incident, entry will be made into the structure after what?

A

Only after structural integrity has been adequately evaluated and deemed safe from all sides and is approved by the IC

Rescue Ops. Bulletin No. 4 pg. 2

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53
Q

While structural collapse is sudden and catastrophic, these failures seldom occur without warning. Members should look for and observe for the following conditions:

A

A) Walls out of plumb, cracks
B) Doors “racked” from building movement
C) Beams/joists pulling away from other structural members
D) Sagging ceilings, cracked joints, failure of structural connectors
E) Problems or changes with utilities such as intermittent power, odor of gas, broken water pipes
F) Unusual noises such as “creaking,” “cracking,” or “groaning” noises

Rescue Op. Bulletin No. 4 pg. 3

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54
Q

Structural collapse. The first due engine company shall cautiously approach the area and shall stop a minimum of __ __ from the incident or where ___ is first encountered and a size-up report shall be given from this location on the tactical channel per current radio procedures. If the incident can not be viewed from this location, what must be done?

A

500 feet, debris/damage, Personnel will proceed cautiously on foot

Rescue Ops. Bulletin No. 4 pg. 3

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55
Q

On a structural collapse, the first due Engine Company shall cautiously approach the area and stop a minimum of ____ feet from the incident scene or where debris is first encountered.

A

500

Rescue Ops Bulletin No. 4 pg. 3

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56
Q

Truck company, on structural collapse incidents, shall be responsible for what?

A

safety.

Rescue Ops. Bulletin No. 4 pg. 3

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57
Q

On a structural collapse, the truck company shall be responsible for safety and what else?

A

a) Establish Level III Accountability
b) Establish an exclusionary zone around the adjacent to the affected area to prevent entry and remove civilians from the immediate area.
c) Establish a “collapse zone” at least 1 and 1/2 times the total height of the structure
d) Eliminate sources of vibration at least 500 feet in all directions initially. Restrict traffic, commercial rail lines, METRO, construction work as needed
e) Shut off gas, electric, and water to affected structures if it can be accomplished safely prior to the arrival of collapse rescue team personnel

Rescue Ops Bulletin No. 4 pg. 3

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58
Q

On a structural collapse, the Truck company shall establish a “collapse zone” at least _ __ ___ ____ the total height of the structure.

A

1 and a 1/2 times

Rescue Ops. Bulletin No. 4 pg. 3

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59
Q

On a structural collapse, the Truck company should eliminate sources of vibration at least ____ ___ in all directions initially. Restrict traffic, commercial rail lines, METRO, construction work, etc., as needed.

A

500 feet

Rescue Ops. Bulletin No. 4 pg. 3

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60
Q

On a structural collapse, the Rescue Squad shall begin or assist with what?

A

The removal of surface and lightly trapped victims and initiate the other provision of the Collapse Rescue SOPs.

Rescue Ops. Bulletin No. 4 pg. 3

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61
Q

On structural collapse incidents, other than the 1st due engine, truck, and rescue squad. Where are all other units?

A

All other units shall remain staged at one location a minimum of 1500 feet from the incident until direction is received from the IC.

Rescue Ops Bulletin No. 4 pg. 4

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62
Q

Definitions
Confined Space Entry

A

Includes ensuing work activities associated with rescues in a confined space and is considered to have occurred as soon as any part of the entrant’s body breaks the plane of an opening into the space.

Rescue Ops Bulletin No. 5 pg. 1

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63
Q

Definitions
Hazardous Atmosphere

A

Any atmosphere that exposes personnel to the risk of death, incapacitation, injury, acute illness, or impairment of the ability to self-rescue, which includes one or more of the following causes:
* Flammable gas, vapor, or mist in excess of 10% of its lower flammable limit (LFL)
* Airborne combustible dust at a concentration that meets or exceeds its LFL
* Atmospheric oxygen concentration below 19.5% or above 23.5%
* Atmospheric concentration of any hazardous substance that could result in exposure to personnel in excess of its dose of permissible exposure limit (PEL)
* Any other atmospheric condition that is immediately dangerous to life or health (IDLH)

Rescue Ops. Bulletin No. 5 pg. 1, 2

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64
Q

____ is the lead unit for confined space rescue?

A

Rescue Squad 2

Rescue Ops Bulletin 5, Page: 2

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65
Q

A hazardous atmosphere may be airborne combustible dust at a concentration that meets or exceeds its LFL. This may be estimated by observing the density of the concentration. How?

A

In general, if the concentration of dust obscures vision at a distance of 5 feet or less, it may be within its flammable range.

Rescue Ops Bulletin No. 5 pg. 2

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66
Q

Definitions
MSDS

A

Material Safety Data Sheet

Rescue Ops Bulletin No. 5 pg. 2

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67
Q

Definitions
Permit Required Confined Space

A

Meets the requirements to be classified as a confined space as defined above AND has one or more of the following characteristics:
* contains or has the potential to contain a hazardous atmosphere
* contains a material that has the potential for engulfing an entrant
* has an internal configuration such that an entrant could be trapped or asphyxiated by inwardly converging walls or by a floor which slopes downward and tapers to smaller cross-section
* or contains any other recognized serious safety or health hazard( including fall, environmental, and equipment hazards)

Rescue Ops. Bulletin No. 5 pg. 2

Rescue Ops Bulletin No. 5 pg. 2

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68
Q

Definitions
Rescue Entrant

A

A member designated to enter confined spaces who meets specified training requirements.

Rescue Ops Bulletin No. 5 pg. 2

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69
Q

In response to any call for service in a confined space where a rescue is anticipated, what will automatically be dispatched?

A

A Confined Space Task Force

Rescue Ops Bulletin No. 5 pg. 2

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70
Q

A standard Confined Space dispatch will consist of what?

A

Closest Engine Company
Closest Truck Company
Two Rescue Squads; Rescue Squad 2 and the next closest Rescue Squad
Special Operations BFC
Hazmat unit
One BLS and one ALS unit (R-12)
EMS Supervisor (EMS 1-6 if available)
Air Unit

Rescue Ops Bulletin No. 5 pg. 2

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71
Q

On confined space incidents position apparatus no closer than ____ feet and shut down vehicle engines.

A

100

Rescue Ops Bulletin No. 5 pg. 3

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72
Q

The atmosphere of ALL confined spaces shall be considered what?

A

Immediately Dangerous to Life and Health (IDLH) until positively proven otherwise with a calibrated direct-reading instrument (atmospheric monitoring), for the following conditions in the order given
oxygen content
flammable gases and vapor
potential toxic air contaminants

Rescue Ops Bulletin No. 5 pg. 3

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73
Q

On Confined Space incidents, no personnel shall cross the plane of the entrance to the confined space with any parts of their body. DO NOT what?

A

Place your face or head into the opening of a confined space to assess the situation or communicate without proper protection.

Rescue Ops Bulletin No. 5 pg. 3

74
Q

Under NO circumstances shall any personnel other than whom?

A

Confined space trained and certified personnel enter any permit-required confined space.

Resue Ops Bulletin No. 5 pg. 3

75
Q

On incidents requiring permit confined spaces, the Engine Company shall secure the scene and perform an initial Size-up including what?

A

a. Establish Level III accountability
b. Establish an exclusionary zone around and adjacent to the entry portal until a hazard assessment an atmospheric monitoring have been completed.
c. Locate and secure the job site foreman and/or reliable witnesses.
d. Secure entry permit and MSDS sheets if applicable to the situation
e. Determine the location, number, and condition of victims contained within the confined space
f. Determine the specific activities that the occupants were engaged in prior to the call for assistance

Resue Ops Bulletin No. 5 pg. 3

76
Q

On a Confined Space incident, the Truck Company is responsible for what?

A

The removal of electric power, ventilation, and safety.

Resue Ops Bulletin No. 5 pg. 4

77
Q

On a Confined Space incident, all units except for the 1st due Engine, Truck, Rescue Squad, and BFC will do what?

A

Stage in the line of approach, one block away.

Resue Ops Bulletin No. 5 pg. 4

78
Q

On a Confined Space incident, after the first due engine, truck, and rescue squad have completed their initial tasks, and it if can ABSOLUTELY be determined that the space is not a “permit” required space (i.e., presents no atmospheric or physical hazards), entry by non-confined space certified personnel can be approved by the IC under what circumstances?

A
  1. The victim must be visible from the entrance to the confined space and no more than 25 feet in any direction from the entrance to the space.
  2. Specialized rescue equipment and/or procedures will not be required to gain access or egress to or from the space.
  3. If the victim’s condition is stable or will not be improved by immediate entry, personnel shall remain outside the space and wait for confined space certified personnel to arrive.

Resue Ops Bulletin No. 5 pg. 4

79
Q

The D.C. Water and Sewer Authority has begun a sewer tunnel project to include what?

A

A fourteen-mile, 26 ft. diameter tunnel system to control the Anacostia and Potomac River overflows, branch tunnels to relieve surface flooding, and several vertical shafts and the dewatering pumping station.

Rescue Ops Bulletin 5B pg. 1

80
Q

Any response to the tunnel (D.C. Water and Sewer Authority) or surface site will require what?

A

The proper PPE, training, and Level III accountability

Rescue Ops Bulletin 5B pg. 1

81
Q

Incidents categorized as Tunnel Rescue Incidents are those which occur where?

A

In a tunnel such as a rail, roadway, water, or sewer during the construction phase.

Rescue Ops Bulletin 5B pg. 1

82
Q

Entry into tunnels or vertical shafts for a rescue shall be made by a team consisting of not less than ___ (_) personnel trained in what?

A

five (5), in tunnel rescue procedures

Rescue Ops Bulletin 5B pg. 1

83
Q

On Tunnels under construction incident, construction workers who have received tunnel rescue training should be considered as what?

A

Supplemental rescue team members by the IC

Rescue Ops Bulleting 5B pg. 1

84
Q

It shall be the responsibility of ___ ___ _ to perform daily inspection and maintenance on the Tunnel Rescue Support Unit, utilizing what?

A

Rescue Squad 2, the established checklist

Rescue Ops Bulletin 5B, pg. 1

85
Q

Tunnel emergencies can be broken down into two basic classifications, what are they?

A

Immediately Dangerous to Life and Health (IDLH), and non-IDLH

Rescue Ops Bulletin 5B, pg. 2

86
Q

On tunnel incidents, an IDLH emergency is defined as what?

A

Emergencies are an immediate threat to everyone operating in the tunnel, including tunnel workers and rescuers.

Rescue Ops Bulletin 5B, pg. 2

87
Q

Tunnel emergencies can be broken down into two basic classifications Immediately Dangerous to Life and Health (IDLH), and non-IDLH. IDLH can be further broken down to what?

A

fire or atmospheric emergency

Rescue Ops Bulletin 5B, pg. 2

88
Q

On a tunnel emergency, the classification of IDLH, can be further broken down into fire and atmospheric. What will be noted in fire emergencies?

A

A fire will produce low oxygen, hazardous gases, decreased visibility, heat, and compromise the tunnel safety systems, including water supply, and ventilation. A fire emergency will be long duration, extremely high risk, and have a low potential for victim survivability.

Rescue Ops Bulletin 5B, pg. 2

89
Q

On a tunnel emergency, the classification of IDLH, can be further broken down into fire and atmospheric. What will be noted in atmospheric emergencies?

A

An atmospheric emergency can include low O2 levels, methane gas release, or other hazardous atmospheres. Effective ventilation and breathing apparatus can usually mitigate these types of situations with a positive outcome.

Rescue Ops Bulletin 5B, pg. 2

90
Q

Tunnel emergencies can be broken down into two basic classifications Immediately Dangerous to Life and Health (IDLH), and non-IDLH. Non-IDLH emergencies involve what?

A

Emergencies that are acute and will likely involve one victim

Rescue Ops Bulletin 5B, pg. 2

91
Q

On Tunnel emergencies, Non_IDLH can be broken down further into two types of emergencies, what are they?

A

Medical emergencies, and technical rescue

Rescue Ops Bulletin 5B, pg. 2

92
Q

On a tunnel emergency, the classification of Non-IDLH, can be further broken down into medical emergencies and technical rescue incidents. What will be noted in medical emergencies?

A

A medical emergency may involve one or more workers but, other than the means of transport in the tunnel and distance to travel to reach the worker, no special equipment is needed to treat the patient. The first responder and transport unit should be able to handle this type of emergency without additional resources.

Rescue Ops Bulletin 5B, pg. 2

93
Q

On a tunnel emergency, the classification of Non-IDLH can be further broken down into medical emergencies and technical rescue incidents. What will be noted in technical rescue incidents?

A

A technical rescue incident may include injury that requires special victim packaging and rope systems or a working pinned/entrapped by mechanical equipment or falling tunnel segment.

Rescue Ops Bulletin 5B, pg. 2

94
Q

Definitions
Brass Board

A

Accountability system used by tunnel workers to determine the names and number of workers in tunnel. The board is located near the vertical drop shaft entrance.

Rescue Ops Bulletin 5B, pg. 2

95
Q

Definitions
Hazardous Atmosphere

A

Any atmosphere that exposes personnel to the risk of death/incapacitation, injury, acute illness, or impairment of the ability to self-rescue, which includes one or more of the following causes:
1. Flammable gas, vapor or mist in excess of 10% of the Lower Flammable Limit (LFL).
2. Airborne combustible dust at a concentration that meets or exceeds its LFL.
3. Atmospheric oxygen concentration below 19.5% or above 23.5%
4. Atmospheric concentration of any hazardous substance that could result in exposure to personnel in excess of its does or Permissible Exposure Limit (PEL).

Rescue Ops Bulletin 5B, pg. 2, 3

96
Q

Definitions
LDBA

A

Long Duration Breathing Apparatus or Draeger BG 4, a four (4) hour closed circuit breathing apparatus.

Rescue Ops Bulletin 5B, pg. 3

97
Q

Definitions
Loci

A

Diesel-powered locomotive used on small gauge track in tunnel for moving personnel and equipment

Rescue Ops Bulletin 5B, pg. 3

98
Q

Definitions
Mine Phone

A

Low voltage communication network found throughout job sites. Primary means of communication in tunnel.

Rescue Ops Bulletin 5B, pg. 3

99
Q

In response to a call for service in a tunnel where rescue or recovery is anticipated, what will be dispatched?

A

A Tunnel Rescue Task Force

Rescue Ops Bulletin 5B, pg. 3

100
Q

On a standard Tunnel Rescue Task Force, the Truck Company will do what?

A
  • Locates Forman and Safety Manager
  • Works with Haz-Mat and confirms the vent systems are operating
  • Determine the direction of air movement
  • Assesses status of utilities: power, lighting, water, compressed air, etc.
    • Lock-Out Tag-Out where possible
  • Assess atmospheric monitoring by Contractor
  • Relays all pertinent info to the Special Ops Chief via radio

Rescue Ops Bulletin 5B, pg. 3

101
Q

On a Tunnel Rescue Dispatch, what responsibilities does Rescue Squad 2 have?

A
  • Responds with the Tunnel Rescue Support Unit and the Tunnel Rescue Trailer.
  • Operates in teams of five (5) Fire Department personnel.
    *Additional contract rescue personnel may be added to the
    FD team.
  • Prepares to make entry with PPE and equipment based on information gathered.
  • No Entry into tunnel should take place until a back-up team is in place

Rescue Ops Bulletin 5B, pg. 4

102
Q

On a Tunnel Rescue Dispatch, what responsibilities does the 2nd Rescue Squad have?

A
  • Operate in teams of five (5) Fire Department personnel.
    • Additional contractor rescue personnel may be added to
      the FD team.
  • Prepares to act as second entry team or Rapid Intervention Team for the initial rescue squad.
  • Once 2nd rescue squad is utilized it should be replaced with an additional rescue squad.

Rescue Ops Bulletin 5B, pg. 4

103
Q

On a Tunnel Rescue Dispatch, what responsibilities does the Haz-Mat Unit have?

A
  • Bump or calibrate all meters that will be used during the incident.
    *(This shall not delay entry in a rescue situation)
  • Places Area RAE steal in bottom of vertical shaft to remotely monitor atmospheric conditions in vertical shaft, prior to deployment of entry teams.
  • Provide entry team with a Area RAE steel for monitoring.
  • Record initial meter readings, and all subsequent readings at 10 minute intervals or when readings change.
  • Assist with bench testing BG-4’s and making units ready for service.

Rescue Ops Bulletin 5B, pg. 4

104
Q

Emergencies in Tunnels can present problems that require special equipment and training. Because of the extreme potential for injury of death, what must govern every action undertaken by emergency personnel?

A

Safety

Rescue Ops Bulletin No. 5B pg. 5

105
Q

All tunnels in the city are considered what?

A

Potentially gassy

Rescue Ops Bulletin No. 5B pg. 5

106
Q

The atmosphere in the tunnel should be considered what until what?

A

IDLH until proven otherwise with a calibrated, direct reading instrument for the following conditions in order:
1. Oxygen.
2. Flammable gases.
3. Toxicity of atmosphere.

Rescue Ops Bulletin No. 5B pg. 5

107
Q

Atmospheric monitoring will occur _______ during occupancy of a tunnel using Area Rae, and Multi Rae Lite meters, and recorded by whom how often?

A

continually, Haz-Mat Unit in 10-minute intervals

Rescue Ops Bulletin No. 5B pg. 5

108
Q

Vertical shafts leading to tunnels can be ___ __ deep. Any member operating within _ __ of the shaft shall be in a Class 3 harness and tethered to an anchor point

A

100 ft, 5 ft

Rescue Ops Bulletin No. 5B pg. 5

109
Q

Look over/into the shaft to assess the situation or communicate with personnel at the bottom.

A

False, Do not look over/into any shaft to assess the situation or communicate with personnel at the bottom.

Rescue Ops Bulletin No. 5B pg. 5

110
Q

Department radio are effective in tunnels only when used on what?

A

talk-around channels

Rescue Ops Bulletin No. 5B pg. 6

111
Q

Mine Phones are located throughout tunnels under construction, and above ground at job sites. Mine Phones are the what when making entry into tunnels?

A

The preferred method to communicate meter readings when making entry into tunnels.

Rescue Ops Bulletin No. 5B pg. 6

112
Q

No underground entry of any type shall be permitted until it can be determined that what does not exist?

A

A flammable atmosphere does NOT exist

Rescue Ops Bulletin No. 5B pg. 6

113
Q

The D.C. Fire and EMS Tunnel Rescue Team shall not be deployed to what?

A
  • Recover construction equipment.
  • Prevent damage to construction materials or equipment.

Rescue Ops Bulletin No. 5B pg. 7

114
Q

The D.C. Fire and EMS Tunnel Rescue Team shall not be deployed when?

A
  • There is water above the knee.
  • Gas levels are at or above 10% LEL
  • Gas levels are rising regardless of the LEL.
  • There is evidence of explosions, misfires, or explosive devices known to be in the confined space.

Rescue Ops Bulletin No. 5B pg. 7

115
Q

Definitions
High Angle

A

Refers to an environment in which the load is predominately supported by a rope rescue system and it can be above or below grade.

Rescue Ops Bulletin No. 6 pg. 1

116
Q

Definitions
Low Angle

A

Refers to an environment in which the load is predominately supported by a rope rescue system and it can be above or below grade.

Rescue Ops Bulletin No. 6 pg. 1

117
Q

____ is the lead unit for any high-angle rescues and will require what?

A

Rescue Squad 1, an additional rescue squad for back-up and support

Rescue Ops Bulletin No. 6 pg. 2

118
Q

The High Angle Task Force will consist of what following companies?

A
  • Closest Engine Company
  • Closest Truck Company
  • Two Rescue Squads; Rescue Squad #1 and the next closest Rescue Squad
    Special Operations Battalion Fire Chief
    Safety Officer
    Closest ALS unit (R-12 if available)
    Closest BLS unit

Rescue Ops Bulletin No. 6 pg. 2

119
Q

On a standard high Angle/Rope Rescue Dispatch position apparatus no closer than __ __ away from the operation area, whether being a structural or geographical area.

A

100 feet

Rescue Ops Bulletin No. 6 pg. 2

120
Q

The minimum acceptable PPE on all rope rescue incidents shall be what?

A

Helmets and gloves for all personnel

Rescue Ops Bulletin No. 6 pg. 2

121
Q

All personnel operating within ____ feet of the edge of any height shall be tethered to an anchor point?

A

5

Rescue Ops Bulletin No. 6 pg. 2

122
Q

Truck companies on a High-Angle incident will Lockout/Tagout. What may this entail?

A

Remove electrical power and place all fixed mechanical devices and equipment capable of causing injury in a ‘zero mechanical state’ in the rescue area. If it is not possible secure any hazard, all personnel operating in the rescue area shall be made aware of the hazard. Consider environmental hazards; temperatures, rain/snow, flowing water, loose rock/soil, etc.

Rescue Ops Bulletin No. 6 pg. 3

123
Q

On a High Angle incident, the Rescue/Operations Safety Officer will do what?

A

a. Should be a certified Rope Rescue Level II/Operation Level
b. Shall establish a Safety Zone around the rescue area sufficient to protect personnel and equipment.
c. Shall monitor each phase of the rescue to ensure an efficient and safe operation.
d. Perform a Hazards Analysis and Risk Assessment

Rescue Ops Bulletin No. 6 pg. 4

124
Q

On a High Angle incident, which units will stage one block away in line of approach?

A

ALS unit
BLS unit

Rescue Ops Bulletin No. 6 pg. 4

125
Q

Trench/Excavation collapses kill over ____ people every year.

A

one-hundred

Rescue Ops Bulletin No. 8 pg. 1

126
Q

How many people each year are injured on job sites, both public and private?

A

Eleven hundred (1,100)

Rescue Ops Bulletin No. 8 pg. 1

127
Q

Definitions
Cave-in

A

The collapse of unsupported trench walls

Rescue Ops Bulletin No. 8 pg. 1

128
Q

Definitions
Sheeting

A

Wood planks and wood panels that support the trench walls, held in place with shoring.

Rescue Ops Bulletin No. 8 pg. 1

129
Q

Definitions
Shoring

A

The general term used for lengths of timber, screw jacks, hydraulic and pneumatic jacks, and other devices that can be used to hold sheeting against trench walls. Individual supports are called shores, cross-braces, and struts.

Rescue Ops Bulletin No. 8 pg. 1

130
Q

The collapse of a portion of a trench wall in such a fashion that an overhang remains is called?

A

Slough-in

Rescue Ops Bulletin No. 8 pg. 2

131
Q

The mound of material removed from an excavation is called?

A

Spoil Pile

Rescue Ops Bulletin No. 8 pg. 2

132
Q

Definitions
Tension Cracks

A

Cracks in the ground adjacent to the trench. Tension cracks indicate that the ground has shifted and should be taken as a warning sign.

Rescue Ops Bulletin No. 8 pg. 2

133
Q

Definitions
Trench

A

1) An excavation that is deeper than it is wide. 2) A temporary excavation in which the length of the bottom exceeds the width. The term “trench” is generally limited to excavations that are less than fifteen feet wide at the bottom and less than twenty feet deep.

Rescue Ops Bulletin No. 8 pg. 2

134
Q

The edge of a trench is called?

A

Trench Lip

Rescue Ops Bulletin No. 8 pg. 2

135
Q

Definitions
Uprights

A

Generally speaking, planks that are held in place against sections of sheeting with shores.

Rescue Ops Bulletin No. 8 pg. 2

136
Q

What do Uprights in Trenches do?

A

Uprights add strength to the shoring systems. They distribute forces exerted by trench walls and counterforce exerted by shores over wide areas of the sheeting

Rescue Ops Bulletin No. 8 pg. 2

137
Q

Definitions
Whales

A

Braces that are placed horizontally against sheeting, Whales transmit the loading from sheeting to the shores, Also known as “whalers and “stingers.”

Rescue Ops Bulletin No. 8 pg. 2

138
Q

The side of the trench from the lip to the floor is known as what? Is is also called the face.

A

Wall

Rescue Ops Bulletin No. 8 pg. 2

139
Q

In response to any call for a reported trench /excavation collapse, what will automatically be dispatched?

A

Cave-In Task Force

Rescue Ops Bulletin No. 8 pg. 2

140
Q

The Cave-In Task Force will consist of the following:

A
  • Two Engine Companies, E15 and the next closest EC
    Closest Truck Company
    Two Rescue Squads, Rescue Squad 3 and the next closest RS
    Special Operations Battalion Chief
    Collapse Unit
    Collapse Support Unit
    Safety Officer
    Hazardous Materials Unit
    One BLS and one ALS unit (R-12 if available)
    EMS Supervisor (EMS 1-6 if available)

Rescue Ops Bulletin No. 8 pg. 2

141
Q

On a trench rescue, responding companies shall position apparatus no closer than ____ ____ to the trench/excavation.

A

200 feet

Rescue Ops Bulletin No. 8 pg. 3

142
Q

On Trench incidents, all apparatus shall be ___ ___. All construction equipment on the site shall be left in position and what?

A

Shut down, shut down

Rescue Ops Bulletin No. 8 pg. 3

143
Q

Under no circumstances will any member attempt to enter any unshored or otherwise unstable trench or excavation, until when?

A

Deemed safe and approved by the IC

Rescue Ops Bulletin No. 8 pg. 3

144
Q

On Trench incidents, who shall be utilized for recon/size-up?

A

No more than two members

Rescue Ops Bulletin No. 8 pg. 3

145
Q

Members approaching an excavation for recon/size-up shall do so from where?

A

From the narrowest portion of the excavation

Rescue Ops Bulletin No. 8 pg. 3

146
Q

On Trench incidents, attempt to remove the civilian personnel from the immediate area. This may prove difficult, as co-workers will invariably by attempt to rescue those who are trapped. Although there may be civilians in the excavation,

A

under NO circumstances shall Fire Department personnel enter the trench/excavation

Rescue Ops Bulletin No. 8 pg. 3

147
Q

On Trench incident, two members may approach the excavation cautiously from where?

A

the narrowest portion of the excavation.

Rescue Ops Bulletin No. 8 pg. 3

148
Q

On Trench incident, two members may approach the excavation cautiously from the narrowest portion of the excavation. The member will use available ground material as what to do what?

A

As ground pads to distribute their weight as much as possible. If no materials are available, consider using backboards or ladders

Rescue Ops Bulletin No. 8 pg. 3

149
Q

On Trench incidents, Incident Commanders will do what?

A

A. Determine if the victims(s) are visible
B. Determine their level of consciousness.
C. Determine the extent of their injuries.
D. Determine if they are able to move

Rescue Ops Bulletin No. 8 pg. 4

150
Q

On Trench incidents, Truck Companies are responsible for what?

A

Safety

Rescue Ops Bulletin No. 8 pg. 4

151
Q

On Trench incidents, the Truck company will establish an exclusionary zone and around the adjacent to the affected area of at least ___ ___ in all directions to prevent entry and remove civilians from the immediate area

A

200 feet

Rescue Ops Bulletin No. 8 pg. 4

152
Q

On Trench incidents, the Truck company will eliminate sources of vibration at least __ ___ in all directions initially. What else when they limit?

A

500 feet, restrict traffic, commercial rail lines, METRO, construction work, and shut down apparatus and heavy equipment

Rescue Ops Bulletin No. 8 pg. 4

153
Q

Streetcars are powered by electricity taken from the ____ ____ ____(OCS) which is conveyed through a ______ on the roof of the Streetcar to the motors that drive the wheels.

A

overhead catenary system (OCS), pantograph

Rescue Ops Bulletin No. 9 pg. 1

154
Q

Traction power substations (TPSS) supply what?

A

the catenary system powering streetcars.

Rescue Ops Bulletin No. 9 pg. 1

155
Q

Traction power substations (TPSS) supply the catenary system powering streetcars. They take in ____ AC from PEPCO and step it down to ____ DC to supply the catenary system.

A

13’000 volts; 750 volts

Rescue Ops Bulletin No. 9 pg. 1

156
Q

The catenary lines are supported over the rails by catenary poles at a height of approximately how many feet from grade?

A

20 ft.

Rescue Ops Bulletin No. 9 pg. 1

157
Q

Sections of the catenary system will be de-energized by whom at the request of the D.C. Fire and EMS Incident Commander?

A

Streetcar Control Center (SCC)

Rescue Ops Bulletin No. 9 pg. 1

158
Q

Power to the catenary systems can be controlled by the Streetcar Control Center and can also be controlled where?

A

At the TPSS and by section break disconnect switches. Section break disconnect switches will be operated by qualified Streetcar representatives as needed.

Rescue Ops Bulletin No. 9 pg. 1

159
Q

What is located outside each TPSS?

A

An emergency shutdown box.

Rescue Ops Bulletin No. 9 pg. 1

160
Q

An emergency shutdown box is located outside each TPSS. Inside this box is what?

A

A red button switch to shut down the TPSS by disconnecting the substation from the PEPCO power supply. Operating the emergency shutdown switch at the TPSS shuts down incoming AC power and outgoing DC power.

Rescue Ops Bulletin No. 9 pg. 1

161
Q

On a Streetcar incident, how is power removed?

A

All TPSS must be shut down on the line on which the incident occurred.

Rescue Ops Bulletin No. 9 pg. 1

162
Q

As with any high-voltage powerline, personnel (and equipment) must maintain a safe distance of a minimum of ___ away from the catenary powerlines at all times when energized.

A

10 feet

Rescue Ops Bulletin No. 9 pg. 1

163
Q

There are three power sources available to the Streetcar, what are they?

A
  • The pantograph receives electric power from the OCS to run the streetcar and charge batteries.
  • Main batteries provide electrical energy to the motors to move streetcar under battery power only.
  • Auxiliary batteries provide 24 volts DC for “control voltage” (Inekon cars only).

Rescue Ops Bulletin No. 9 pg. 1

164
Q

It must be noted that electrical capacitors located on the top of the Streetcar may remain energized for up to ___ ____ after catenary power is removed. Streetcars are not equipped with any mechanism to speed the discharge of electrical energy from the capacitors.

A

five minutes

Rescue Ops Bulletin No. 9 pg. 2

165
Q

The quickest way to de-energize the streetcar is to have the streetcar operator ____?

A

Lower the pantograph. Once the pantograph has been lowered, there will no longer be any electrical current running to the Streetcar from the catenary system.

Rescue Ops Bulletin No. 9 pg. 2

166
Q

When the catenary system is intact and there is no hazard to the system from a fire, what is usually required to safely operate in and around the Streetcar and the alignment?

A

Lower the pantograph, controlling battery power, and chocking the wheels.

Rescue Ops Bulletin No. 9 pg. 2

167
Q

In those situations where the IC determines that the catenary system must be shut down to ensure the safety of passengers and responders, the IC will request whom?

A

That the SCC shut down the system and send qualified Streetcar representatives to provide grounding straps.

Rescue Ops Bulletin No. 9 pg. 2

168
Q

Before Streetcar representatives will put grounding straps in place, they will shut down the power at section break switches and /or at traction power substations. When traction power substations are shut down, breakers will be racked out, locked out, and tagged out. Once those actions have been completed by Streetcar representatives, what will occur?

A

A least two (2) grounding straps/poles will be put in place by Streetcar technicians or supervisors at each end of the work area.

Rescue Ops Bulletin No. 9 pg. 2

169
Q

If there will be a delay in placing grounding straps or some other high-hazard situation exists, the IC may direct units on the scene or request that additional units be dispatched to affected TPSSs to do what?

A

Operate the emergency trip switches

Rescue Ops Bulletin No. 9 pg. 2

170
Q

At traction power sub stations will only be entered with whom?

A

A qualified D.C. Streetcar representative

Rescue Ops Bulletin No. 9 pg. 2

171
Q

If the streetcar has derailed and none of the wheels are in contact with a running rail and/or the streetcar is overturned and the pantograph is still in contact/entangled with the OCS, or if the OCS has been compromised and is damaged and/or lines are down, what must occur?

A

DO NOT approach the streetcar or track. The OCS must be de-energized and grounded.

Rescue Ops Bulletin No. 9 pg. 2

172
Q

Why are the streetcar tracks continuous?

A

The track gauge is the standard rail width (4’-8.5”) and act as a negative return for the traction power from the catenary system.

Rescue Ops Bulletin No. 9 pg. 2

173
Q
A

Rescue Ops Bulletin No. 9 pg. 3

174
Q
A

Rescue Ops Bulletin No. 9 pg. 3

175
Q
A

Rescue Ops Bulletin No. 9 pg. 3

176
Q
A

Rescue Ops Bulletin No. 9 pg. 3

177
Q
A

Rescue Ops Bulletin No. 9 pg. 3

178
Q

Units arriving on the scene of a well involved vehicle fire threatening the catenary system will ____ until the catenary is de-energized and grounded?

A

Protect exposures

Rescue Ops Bulletin No. 9 pg. 7

179
Q

Located outside each TPSS is an ____ to shut down the traction power sub-station?

A

Emergency Shut Down Box

Rescue Ops Bulletin No. 9 pg. 7

180
Q

On ALL confined space incidents the atmosphere shall be considered what?

A

Immediately dangerous to life (IDLH) and health until positively proven otherwise with a calibrated direct reading instrument (atmospheric monitor), for the following conditions in the order given
* oxygen content
* flamma

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