Metrorail ESM Flashcards
Passenger stations are constructed of non-combustible materials with a fire resistive rating of at least ____ hours.
two
Station platforms are made of ____.
red-brown terrazzo tile.
The last 42 inches of the platform closest to the track bed include a ___ inch bumpy terrazzo tile surface and an ___ inch granite surface.
This change in texture is designed to warn passengers that they are close to the edge of the platform.
24 inch bumpy terrazzo
18 inch granite surface.
Most subway stations are approximately
___ feet wide with ____ foot long platforms capable of handling an ___ car train.
They vary in height from ____ feet above the track surface.
60 feet wide
600 foot long platforms
Eight car train
30 to 35 feet above the track surface.
There are three basic types of stations:
- Sub-surface or underground
- Surface or at grade
- Aerial or elevated
The entrance to each Metrorail Station is marked by a distinctive ____ on all four sides at the top
bronze colored pylon with the lighted “M”
The primary means of passenger access is by ____, with _____ available for disabled passengers.
escalators
elevators for disabled
The _____ is where the farecard machines and the faregates are located.
mezzanine
Is the kiosk a suitable command post,?
The Kiosk is a suitable command post. With all of its capabilities and monitoring devices the Incident Commander should consider utilizing this facility as the command post if conditions allow.
Station communications equipment is found in the Kiosk. This equipment includes 3 communications equipment they are_____.
PABX telephone
a public address system,
a communication panel.
a PABX telephone, is capable of contacting the ___.
Operations Control Center,
a public address system capable ____.
of making announcements to station patrons
a communication panel to reach passengers at__.
elevator landings and in the elevator themselves.
The last area of passenger access prior to boarding the trains is the ___ level.
platform
At each end of the station platforms there are access gates allowing Fire/Rescue personnel to enter the ____.
right-of-way.
Emergency trip station (ETS) phones are located at ____.
each end of the station platforms.
_____ are considered the primary means of emergency evacuation.
Escalators
In fire emergencies where the station’s Fire Detection System activates and automatically stop the_____escalator.
entrance escalators
The faregates are also connected to the fire detection system. Should the heat or smoke alarm activate and not be reset the faregates will lock in the open position after ____ seconds.
30
All stations provide passengers with two means of egress. First means on egress is escalator. The secondary means of exit will be through _____.
one of the emergency exits or
vent shafts that supply the station
The___in use at metro stations are primarily intended for movement of handicapped persons from street level to the mezzanine and then to the platform level.
Elevators
In all cases either _____or____ are used to transport passengers to and from street level and to and from platform level on the metro system .
Hydraulically powered elevators
Electric traction elevators
Electro-hydraulic elevators used in metro system normally travel short distances. The construction of the elevator includes a ___below the floor to raise and lower the car.
Piston
The kiosk contains a display and control panel that is used to monitor and control the elevators in the station: ___indicators show the landing the elevator is on, if it is stopped , or to which landing the elevator is traveling , if it is in motion.
Position indicators
The kiosk contains a display and control panel that is used to monitor and control the elevators in the station: ___indicator will light if the electrical system experiences a reverse phase, or if one of the three phases of main pose is out.
Malfunction lndicator
The kiosk contains a display and control panel that is used to monitor and control the elevators in the station: Emergency indicators will activate if any of these four problems arise:
1- car top “inspection stations run/ stop” switch is in the stop position
2- emergency exit doors on the car are open
3- the emergency stop switch in the car is pulled
4- the emergency. Stop switch on the kiosk control panel is pulled.
When the pull emergency stop button is activated in elevator car an alarm bell will sound, power is removed from the door operator and then doors can be open by hand only if at a landing. Once the switch is returned to its run position the elevator will begin moving within ____seconds by depressing the button.
5 seconds
Even passenger are trapped in the elevator the station manger will attempt to free them prior to the arrival of Units. Personnel should confer with station manger to see__.
What efforts have been stepped and should
Ensure that an elevator mechanic has been dispatched. Contact with passengers in elevator should be made as soon as possible utilizing the elevator intercom system.
Locate the appropriate elevator machine room shut main electrical power down and wait ____seconds. Restore power to elevator, in some cases this may free up stuck or overheated relay and restore the elevator to normal operations .
Wait 15-20 Seconds
Access to machine room can be made using the ___ on the metro letting provided to personnel or found in the stations Knox box.
Master key
Escalator keys are on the Metro key rings which are located in every station’s Knox box. They will have ___marked on the key for identification.
“ESC”
By utilizing the key controls, the escalators can be placed in the mode necessary to assist in evacuation. The key controls will be located to the ____side of an escalator as you face it. And are normally found on the landing closest to the Kiosk. Glass sided escalators will be equipped with a pedestal control station.
left
The majority of injuries involving the escalators come from ____.
falls, or
passengers being caught in the step components.
Fire incidents involving the escalators are usually caused by a ____.
build up of trash and
combustible grease residue under the escalator steps or from overheated drive motors.
The normal speed of the escalators is approximately _____ per minute.
90 feet per minute
The average width of the escalators is ___and they rise at an incline angle of ____.
40 inches; 30 degrees.
Embarkation lights are located at the top and bottom of the escalator where the steps flatten out within ____ inches of the comb plate.
16 inches
Single access stations, those with only one set of escalators to access the station, have an automatic fire suppression system (deluge sprinkler system) installed in _____ .
the escalator pan beneath the support truss.
The sprinkler shut off controls are located in the escalator pit. They can be accessed by one of three different ways depending on the station configuration:
l ). By lifting a surface hatch at the top of the escalator.
2). By entering an ancillary room door off the safety walk in the trackway.
3). By removing the plates at the top or bottom threshold with a large screwdriver.
When the station fire alarm is activated, the electrical power to the escalators providing entry into the station will be shut down automatically. The escalator will remain stopped until the fire alarm is cleared. There is up to a ____ delay from the time of fire alarm activation, to the time of escalator stoppage.
two minute
When the station fire alarm is activated, the electrical power to the escalators providing entry into the station will ____.
All escalators operating in the exit mode will__.
escalators providing entry into the station will be shut down automatically.
All escalators operating in the exit mode witl continue to operate during the fire alarm.
In the event that an escalator must be stopped immediately; there are two methods that can be used. It should be remembered that there are no escalator shut down buttons in the Kiosk.
First Method
Depress the “Emergency Stop” button located either under the right hand rail (on older model Westinghouse Escalators) or on the upper right side of the side panel near the hand rail.
Second Method
Utilize the escalator key on the key ring; insert the key in the key hoie and turn it in the direction marked for stopping. Again it is important to notify any passengers on the escalator that you are going to stop the escalator so that they can brace themselves.
The recommended procedure for removing entrapped persons for all escalators is to____
pry the steps away from the sideboards.
Another way but not recommended or preferred: individual steps can be removed by inserting a long handle alien hex wrench in to a fitting in the steps. They can also be removed with a maul or sledge hammer. However, this process could injure anyone in contact with the step being removed.
If a piece of clothing or body is caught in the teeth of the comb plate, it can be dismantled by ____. Comb plate teeth can also be removed by breaking them.
unscrewing the plates with a large flat head screwdriver
The brushes that were recently added to the escalators to prevent passengers from being caught between the sidewalls and the moving steps. Are called _____.
LONDON BRUSHES
Note:Escalator steps cannot be removed with the London Brushes in place. They must be removed prior to attempting escalator step removal. they can be removed by using a screwdriver.
The right-of-way can best be described as the areas between _____.
The fences and tunnel walls where the tack bed is located.
Where will you find ballast of stone and gravel?
The track bed in a at grade.
(Ties made of wood or concrete to support the rubbing rails are set on the ballast.)
Shunt , interlocking or crossover are all terms used for ____.
Switches
A point where train cars can move from one track to another.
Switches in metro system use AC power to operate, they are activated by computer, they are controlled by ____ .
OCC
If it is necessary to work in the interlocking you must ___ the switch.
Block….. by using a piece of cribbing . Placing it in between rail to prevent them from closing .
Chain makers are located every _____.
100 feet along the line.
Measurement start from a center point or hub of the line or hub station
The letter on the chain marker is to identify ___.
Route
On a chain marker , The first number directly underneath the letter is to identify the _____.
Track number
On a chain marker the color is to identify the ____.
Line
On a chain maker the numbers underneath the color is to identify _____.
The distance you are from the center or u
Hub station/line in feet .
There are four types of standpipe systems in metro , they are:
1-wet standpipe system for underground stations
2-dry standpipe system for at grade stations
3- dry standpipe system for aerial stations
4- dry standpipe system for tunnels .
There are three types of tunnels they are :
Circular
Horseshoe &
Box (cut & cover)
They maybe in single , double , stacked or any combination of the three.
Circular tunnels are bored through earth and rock they are ___wide.
16 feet 6 inches wide
Horseshoe tunnels are carved out of rock. They are ___wide for single track tunnels and can be doubled tracked widths used for crossovers and side by side track running underground.
15 feet wide
Horseshoe tunnels will equipped with safety walls if found in the side by side configuration. safety walk is typically ___ in width.
22 inches
Box (cut and cover) tunnels are dug from the surface down and then covered with earth. They are ___wide for single track configuration.
The double width tunnels is __wide.
13 feet 9 inches single track
29 feet for double width tunnels,
The walkways are equipped with toe holds and grab rails to assist in accessing the walkway from the track level; they are located every ___ along the walkway .
30 feet
The maximum travel distance to any emergency exit shaft will be ___.
1250 feet
The emergency exit shafts will be equipped with metal open grate stairways that may rise depending on the topography of the land up to __ in height.
220 feet
Fluorescent lights are in all tunnels, spaced at ___ intervals above the safety walkways.
40 foot interval.
In the event electrical power is lost every ___ (___feet )fluorescent light is fed by emergency batter power.
4th fluorescent light
160 feet
The emergency battery power thats designed to operate the fluorescent lights in emergency , they battery will operate for up to____hours.
3
Electrical outlets in the tunnel are 119- volt , 30 ampere three prong outlets that are located ____
Under every other fluorescent lights.
They are not connected to to the emergency back up battery system.
The Intrusion detection and warning system (IDW system) is used to provide warning is something penetrates the right of way. It’s attached to both side of fences consists of breakable cables. if tilt more than ____ from vertical an alarm is sounded at OCC Operations control center and the computer automatic train control system for that area of track , stops train movement.
30 degrees from vertical
Evacuating passengers on aerial right of way should only be attempted as a ____.
Last resort
Yard limits normally will be marked by separate chain markers with either the identifier. Initials are
“__” for yard track or
“__” for lead track.
YT for yard track
LT for lead track
The metro rail system has three distinct types of electrical systems; they are:
- Traction power systems - conduct power to propel the rail cars
- AC power- power to run lights, ventilation and other services not directly involved in propelling the rail cars.
- Battery power - needed fir emergency operations , every where lighting is needed , communication
The power is supplied by two utility companies in the following voltages:
13,800 volts PEPCO
34,500 volts by Virginia power
Sub stations transformers step the electric power down to 750 volts DC
Traction power substations (TPSS):
The transformer are located in concrete and or block structure with a minimum fire rating of ____hours.
Two hours
____ is the means that electric power is transmitted to the rail cars.
Third rail
The third rail is located on the outside of either side of running rails. It’s next to the regular running rails on which the rail cars wheels rest. It’s approximately ____ higher than the regulate rail.
4- 1/2 inches higher
The electric power is fed to the third rail by a series of cables which are covered by pit heads ; which are tethered end of the electric wires coming from the traction power substation . Pot head are ____or ___ in color .
Orange or yellow
A gray protective fiberglass cover is located over the third rail. The cover is rated to withstand ____pounds per inch of force. Do not sit, lean or step on third rail cover .
250 pounds per inch of force.
The maximum length of a section of third rail is____.
800 feet
ETS boxes are located at lengths approximately ___ along the mainline and at each end of every metro rail station.
800 feet.
The primary purpose of ETS Boxes is to allow ______.
de-energizing of third rail power in an emergency.
Also allow wayside communications wit OCC.
To remove power from a portion of the third rail, pick up the phone in the ETS box , contact OCC by dialing ___.
0 (zero)
Advise them why power need to be removed.
Identify self by name , rank and unit number,
Provide location of emergency.
In the ETS box is a red mushroom button. This button is used to trip breakers in the traction power substation to shut down electrical power. This button should only be pushed when____.
there is an imminent threat to life safety
Third rail power can safely be removed in two different ways. They are ____. The preferred way is ___.
Contacting OCC via telephone in the ETS box & ‘ use of the red mushroom button in the ETS box
The preferred way is by contacting OCC via telephone.
Once OCC confirmed power to the third rail has been shut down it must be tested by in scene personnel prior to allowing operations to begin in the track bed. Testing of 3rd rail requires the use of a ___.
Volt probe.
110 volt receptacles are located through out the metro rail system. They are are found ____.
under every other fluorescent light in the ‘ tunnels ;that’s approximately every 80 feet
under every other bench on the station platforms,
As well as in wall and occasionally in the floor of the station platform.
If you in an area with no 110 volt receptacles to test volt probe before test the third rail, you can ___.
Use power generators on for apparatus.
Use two different volt probes simultaneously to test third rail.
What is a WSAD?
A Warning Strobe and Alarm Device (WSAD) is an audible and visual alarm if the third rail owner is restored .
When will the horn sound on the WSAD?
If one of the paddles fall off of the third or running rail,
If power is restored to the 3rd rail.
When contact is made over the RTS phone ,
for the purpose of shutting down electrical power , occ will comply by utilizing a computer control to take power down in the area requested . This is known as as_____.
Supervisory power outage
If power to 3rd rail need to be shut down for an extended period is time Metro employees will then report to the appropriate traction power sub-station or tie breaker station and complete a fail safe procedure called
Red tag
There are three separate types of electrical loads found in metro system; they are :
- Non-essential loads ; are not necessary to basic operation of the system.
- Essential loads ; are required to operate basic services to the system
- Emergency loads; are absolutely necessary for safe operations
In the tunnels , emergency batteries power will operate __% of the lighting every ___ light BBC above the safety walk. These batteries are designed to supply emergency power for up to ___ hours.
25% ;
every 4th light.
3 hours
The_____,controls the day to day operations of the Metrorail system including: ali train movement, electrical systems, station operations, and support systems that function as part of Metrorail system.
OPERATIONS CONTROL CENTER (OCC)
OCC controls all areas known as ____.
“revenue areas”
By definition revenue areas include the rails and stations from one end of a line to the opposite end of the line, and areas where passengers have access to ride the system, In the yards, control is in the hands of the yardmaster located in the yard tower.
Any incidents in the yards or on yard trackage must be coordinated through the_____ ,not occ.
yardmaster
Metro may utilize 5 of the many telephone systems; they are:
WAYSIDE TELEPHONE SYSTEM
PRIVATE AUTOMATIC BRANCH EXCHANGE (PABX) SYSTEM
OUTSIDE PUBLIC TELEPHONES
CELLULAR PHONES
DIRECT LINE TELEPHONE SYSTEM
WAYSIDE TELEPHONE SYSTEM are found ___.
in the ETS (blue light) boxes located along the track right-of-way at approximately 800 foot intervals,
At each end of every station platform
occasionally in some service rooms
(Can be used for conference calls)
PRIVATE AUTOMATIC BRANCH EXCHANGE (PABX) SYSTEM are found _____.
in the service rooms,
fan shafts and
also part of the station Kiosk phone links
(They are not part of wayside phone system
They’re used to dial number in the metro phone system, usually tan in color.)
“Passenger Emergency Reporting System”
(PERS). PERS units are mounted on the pylons or stanchions throughout all stations. By depressing the talk button you can communicate with_____.
Station kiosk
(Platform to kiosk)
When a fire alarm is received from a zone in the station the AUTOMATIC PUBLIC ADDRESS ANNOUNCEMENT SYSTEM (APAAS) system activates to provide the station manager with a pre-alert of a fire alarm that needs attention. The station manager will have _____ to react to the alarm.
two minutes
The station manager will have two minutes to react to the APAAS alarm. During this time a chime tone activates for ___ seconds.
A reset attempt occurs for ___ seconds. If the reset is successful, the chime stops and the APAAS goes to the inactive status.
90 seconds
10 seconds
The station manager will have two minutes to react to the APAAS alarm. If the reset fails the chimes will continue for another 20 seconds. After this time frame if the alarm remains active; what happens ?
the inbound station entrance escalators will stop. The outbound escalators continue to run and an announcement of the fire alarm will begin over the station public address system.
Dedicated phone line with conference call capability. This line does allow up to ____users with access via the in-house WMATA phones.
nine (9) users
The Command Conference Line is a resource reserved for senior commanders and whomever they choose to access it; Never call in from a _____.
speaker phone.
that the COMMAND conference line is reserved for ____&_____.
senior commanders and
whomever they choose to access it.
Ventilation is the movement of air in the tunnels and underground stations of the Metro system. It is maintained under two distinct conditions: _____.
normal and emergency
The _____ ventilation of the underground portion of the Metro system results from train movement in the tunnels and the use of mechanical fans to assist fresh air exchange during operations.
normal
The _____ ventilation conditions is accomplished mechanically, fans are used in either the supply mode or the exhaust mode, depending upon need
Emergency
The primary method of air exchange in the tunnels is the movement of the trains through the tunnels. As a train moves forward in a tunnel it forces air ahead of it, and draws air in behind it. This is known as the _____.
piston effect.
Tunnel ventilation is achieved by four different modes of operation:
Low temperature mode (below 50 degrees Fahrenheit)
Dampers and fans are not operating.
Train movement provides all ventilation.
Tunnel ventilation is achieved by four different modes of operation:
Normal temperature mode (50 to 95 degrees Fahrenheit)
Dampers are open, but fans are not operating. Train movement provides ventilation.
Tunnel ventilation is achieved by four different modes of operation:
High temperature mode (above 95 degrees Fahrenheit)
Dampers open and fans operating in the exhaust setting.
Tunnel ventilation is achieved by four different modes of operation: Emergency mode
Dampers open and fans are operating under the control of OCC in the direction necessary.
When theFire/Rescue services arrive, fan control becomes the responsibility of the Incident Commander.
In underground stations,
the under-platform ventilation systems
assist in the air exchange; The fans are part of the station air exchange system by which cool air is supplied to the station when the temperature exceeds ____.
70 degrees Fahrenheit.
The vent domes contain fans and relief dampers that open when the temperature reaches ____.
70 degrees Fahrenheit.
When the outside air temperature drops below _____, thermostatic controls automatically stop the fans and close the dampers.
70 degrees
The station under-platform ventilation systems have ___ control boxes.
two control boxes.
Each box controls one half of the stations fans.
The boxes are located at each end of the station.
None of the exhaust mode under-platform fans are capable of being controlled by OCC.
Control boxes will have the following settings:
Emergency exhaust - Fan manually operating to exhaust.
Emergency supply - Fan manually operating to supply air.
Automatic operation - Fan operating by the thermostat or under the control of OCC. Can be in either supply or exhaust mode as needed.
Off - Fan manually stopped.
(Not all control boxes have the “off” setting.)
If Fire/Rescue personnel are going to operate the fans in the manual mode, they must contact OCC to explain the reason for doing so. When the operation is complete, the fans should be returned to the ____ mode so that future operations can be controlled by OCC.
“automatic”
In the fan control box you will find settings to control the direction of the fans. They are:
Emergency exhaust - Fan manually operating to exhaust.
Emergency supply - Fan manually operating to supply air.
Automatic operation - Fan operating by the thermostat or under the control of OCC. Can be in either supply or exhaust mode as needed.
Off - Fan manually stopped. Some of the older fans in the system do not contain “Off” positions.
When it is necessary to operate the fans in the manual mode, OCC should be advised. When emergency operations are completed, return the fan to the ____ setting, so that future operations can be controlled by OCC. Should OCC not be able to operate the fans upon request, it may be necessary to access the fan shaft control box and operate the fans manually.
“automatic”
The controls of the fans are electric/pneumatic. When activation is requested, it normally take ____ for the fans to actually start
40 to 60 seconds
(Since OCC controls the fans from their computer screens, it may be necessary for Fire/Rescue personnel to confirm the operation and direction of the fans with them)
During emergencies, the station ventilation fans can be utilized to ____.
supply fresh air or exhaust the products of combustion.
During emergencies, fans in the station dome can also be used to____.
to exhaust smoke
During emergencies, underplatform fans can also ____.
exhaust or supply air
During emergencies, OCC will react to the report of a fire at the platform level by activating ventilation fans in the ___.
exhaust mode
this will clear an evacuation path for passengers by bringing air in through the escalator way, and forcing smoke into the tunnel.
If a fire is reported at the mezzanine level,
OCC will activate the station fans in the____.
supply mode
This will force the smoke out of the station and away from the evacuation routes.
Only use the exhaust fan shaft as a ____, for either entrance or evacuation
last resort
To prevent the fans from operating by the thermostat, have OCC place the fans in the ____ mode. This can be accomplished remotely from OCC’s computer screens.
“Emergency Stop”
The WMATA fire and intrusion alarm systems are designed to detect abnormal conditions such as___.
fire
smoke
hazardous vapors
derailments or
unauthorized entrance into sensitive, unoccupied, or remote areas of the Metrorail system.
The 3 major components of the fire and intrusion (F&I) system are ____.
the F&l cabinets
the panel &
the sensors.
The system interfaces with automatic fare collection equipment, and the data transmission system (DTS).
Each station’s equipment can accommodate up to __ fire and __ intrusion zones. Normally, not all zones are used, and unused zones are marked as spares.
24 fire
24 intrusion zones
The fire and intrusion cabinet is located in the ____ room of each Metrorail station. Each station has at least one cabinet.
communication equipment
five types of sensors are used in the fire alarm system:
-two types of ionization detectors,
-combination fixed temperature and temperature rate-of-rise detector,
-fixedtemperature detector and water flow switches.
Two types of ionization detectors are used in the system.
There is one type used in sensitive or critical areas, such as train control rooms and communication rooms.
The other type of detector is installed in the air duct plenums of the mechanical equipment rooms.
COMBINATION FIXED-TEMPERATURE AND TEMPERATURE RATE-OF-RISE DETECTORS
These detectors activate if the ambient temperature exceeds _____.or
if the temperature rises greater that _____ in one minute.
135 degrees Fahrenheit
15 degrees Fahrenheit
FIXED-TEMPERATURE DETECTORS
The fixed-temperature detectors are used exclusively in fan and vent shafts. They activate when the ambient temperature exceeds ___.
135 degrees Fahrenheit
These sensors are attached to the fire sprinkler systems, deluge sprinkler systems, and to the standpipe systems to transmit alarms when water is flowing in the system. The sensors are found in two forms,_____.
a paddle in the piping that moves when water passes or
a pressure switch that activates as the pressure drops upon system activation.
OCC is responsible for contacting the ____ services for fire, smoke, or hazardous atmosphere emergencies and the ____ for intrusion alarms.
Fire/Rescue
Transit Police
Gasoline and LPG are the the most likely substances to be found because their vapors remain at ground level and accumulate in ___ of an area.
low points
The types of flammable gases and vapors encountered near the Metrorail right-of-way are _____
gasoline
LPG
natural gas
Right-of-way detection systems are located every ___ along with the ETS boxes and at ROW gates.
800 feet
An alarm is transmitted by the sensor if ambient vapor levels are exceeded.
The system is calibrated so that a warning is transmitted if ____percent of the lower flammable limit for the product is reached.
20 %
An alarm is transmitted when ___ percent of the lower flammable limit is reached. It is amplified and transmitted to the system monitor in the communications room serving the area. The alarm is then relayed to OCC.
40 %
The Intrusion Detection and Warning (IDW) system runs along the sides of the Metro right-of-way. Generally every ____fence post is equipped with a tilt switch that activates if the fence post tilts more than 30 degrees.
fourth
The system includes a low voltage wire running the length of the fence that activates an alarm if it is broken. OCC receives the alarm for the zone intended. The zones are approximately ___ feet in length.
2000 feet
Both automatic and manual fire suppression systems are used in the Metro system. ** The 3 Automatic systems** include:
sprinklers, Halon, and FM 200.
These systems are utilized in service areas, escalator pans, computer and electrical rooms and in maintenance supply rooms.
Both automatic and manual fire suppression systems are used in the Metro system. ** The 3 Manual systems** include:
hydrants, standpipes, and fire extinguishers.
These systems are located in station Kiosks, fire equipment cabinets, on the station platforms, in tunnels at vent and fan shafts, and along the streets and parking lots around Metro facilities.
‘Metro station design and construction eliminates the need for sprinklers in public access areas. However, sprinkler systems are installed in _____.
— ancillary rooms designated for combustible storage
—in offices where personnel are assigned,
— in single entry stations to protect the escalators.
System activation is controlled by ionization type smoke detectors located at the top and bottom of the escalator well ways.
Discharge nozzles are located every ____along the escalator pan.
Each nozzle is rated at ___gallons per minute discharge.
Nozzles located at every 50 vertical feet.
Nozzles are rated at 5 GPM discharge.
Standpipes in sub-surface stations are connected to the municipal water system
(__ systems).
Wet system
Standpipe outlets are also located in the platform floor every ___. They can be accessed by removing the manhole cover.
200 feet
Each tunnel has a ____ standpipe installed in it.
dry standpipe ‘
The piping runs along the wall of the tunnel opposite the safety walkway, which normally means it is located directly above the third rail. Tunnel standpipes are not interconnected.
Filling the standpipe rapidly can cause ____
pressure to build at the bottom of the piping and burst the line rendering it unusable.
Slowly filling the piping will allow the exhausters to remove air and pressure to rise slowly preventing ruptures in the piping.
Fire extinguishers can be found throughout the Metro system. The 7 locations are:
1–operator’s compartment.
2–under the last seat of the car on the opposite side from the operator’s compartment
3–Kiosk
4–in ancillary room
5–fire equipment cabinets
6–under the ETS boxes
7–in train control rooms, communications centers.
The horn will sound when the WSAD detects ___ volts
50 volts
The strobe light on the WSAD will activate at ____ volts
400 volts
To verify that the horn and strobe light are working personnel is to ____.
Operate the test buttons on the unit to verify that the horn and strobe light are working.
Detach the white electrode (paddle) from the unit and extend its wire fully; then attach it to the ____rail.
White paddle running rail
Detach the red electrode (paddle) and extend the wire fully; then attach it to the ___ rail. -
Red third rail
The emergency tunnel evacuation cart is used to remove nonambulatory passengers from the site of an incident. The ETEC can handle ___ passengers on backboards,
four
Two on the top level and
Two on the bottom level.
The ETEC fits on the running rails and is controlled by a _____. By lifting it and holding it against the push bar you can roll the ETEC to the closest exit or station to evacuate incapacitated passengers.
deadman brake
The Maximum load for the ETEC is___.
1000 pounds
The maximum load to be placed on the top tray of the ETEC is ____.
250 pounds
There are ___ Metro Support Units in the Washington Metropolitan area.
3
One each
1-Arlington County, Virginia,
2-Washington D.C., and
3-Prince Georges County, Maryland.
There are three Metro Support Units in the Washington Metropolitan area. These units are designed to carry necessary equipment to deal with a major incident involving the subway system. Each vehicle carries ___
40 selfcontained breathing apparatus with 60 minute duration,
40 spare 60 minute SCBA air bottles.
The Metro radio system code designation for a fire
AMBER-AMBER
AUTOMATIC TRAIN CONTROL SYSTEM (ATC) The system for controlling train movement through the system consists of 3 controls systems and a computerized central control facility at the OCC. The three control subsystems are
1– AUTOMATIC TRAIN OPERATION (ATO) The subsystem within the ATC system that performs functions normally performed by the operator
2– AUTOMATIC TRAIN PROTECTION (ATP) The subsystem within the ATC system that enforces safe operation of the system.
3– AUTOMATIC TRAIN SUPERVISION (ATS) The subsystem within the ATC system that monitors system status and provides appropriate controls to direct operation of the trains, maintain traffic patterns, and minimize the effect of train delays by controlling arrival and departure times, using OCC computer programs for minor schedule adjustments.
The Metro radio system code designation for a collision or derailment.
BLACK-BLACK
BLUE LIGHT STATION (ETS) Boxes or cabinets located approximately every ____ along the right-of-way and at the ends of station platforms. These boxes contain a telephone for communicating with Operations Control Center (OCC), and an Emergency Trip Switch button to de-activate third rail power.
They are distinguished by a blue light on top of the box or cabinet.
800 feet
CHAIN MARKER A measurement system sign displayed every ____ along the right-of-way. The signs denote the distance in feet from the center point of the line (either Metro Center or Gallery Piace). A chain marker written as “A 1 (red) 1 1 1 + 36” would be read as “A” line track 1 Red Line 1 1 ,136 feet from Metro Center. The signs may appear between the tracks or affixed to the fence along the at-grade or elevated right-of-way or mounted on the walls of tunnels throughout the Metro system. Chain markers may also be found on ancillary doors or buildings as a means of fixing their location within the system.
100 feet
CONSIST This a railroad term that denotes the number of rail cars in a train. A six car consist is ___ sets of married pairs of raii cars under the control of one operator.
three sets of married pairs
Travel distance to an emergency exit does not exceed ___feet except in special cases.
1,250 feet
KNOX BOX contains keys for that Metro station, and is accessible by a key carried on the Fire/Rescue vehicles. For stations that straddle jurisdictional boundaries a Knox Box will be present for each jurisdictions’ access keys. It is a secure box normally mounted on____.
the first flat wall to the right as you enter a Metro station near its security gate.
PABX “Private Automatic Branch Exchange” telephones found in __&__. They allow access to OCC by dialing a four digit phone number.
station service rooms and the Kiosk
The Metro radio system code designation for a person jumping into the track bed or a person struck by a train.
PURPLE-PURPLE
A ____train used to couple to a disabled train for the purpose of either pushing or pulling the disabled train off of the mainline tracks.
RECOVERY TRAIN
A____train commandeered for the purpose of removing passengers from a disabled train. Normally the rescue train will be unloaded of its regular passengers at a nearby station, then boarded by Fire/Rescue personnel and a Metro supervisor for the trip to the disabled train.
Rescue train
STRAY CURRENT An occurance where the negative return in the traction power electrical system reaches earth ground. This may be caused by high resistance in the return of the negative current or could occur when some metal object comes in contact with a rail car or running rail. .The voltage involved can be as high as ___volts.
60 volts
THIRD RAIL The rail that provides electrical power of approximately ____ volts DC to the trains. It is located outside of the running rails and slightly higher (approximately 4 1 /2 inches) than the running rails.
750 volts
TIE-BREAKER STATION Circuit breaker facilities for traction power, located approximately ___ mile from the traction power substations.
1/2
VENT SHAFT A concrete air exhaust structure with movable louvers at track level and a grate at the surface. They are always found within ___ of the ends of subsurface stations and in some cases found between stations.
100 feet
The IC must immediately establish a ___ for all metro emergencies. It should be located in proximity to a telephone and its location made known to OCC and all fire/rescue personnel.
Command post
Third rail power removed by physically disengaging larger breakers in power supply substations and /or tie breaker station; is known as___.
Red tag power removal
Short duration emergency; in which the reason for removal of third rail power has been corrected prior to the arrival of WMATA power crew to the designated power substation and or tie breaker station , typically these incidents do not exceed ____time.
1 (one) hour
On a metro HAZMAT incident fans should ____.
Immediately shut down all ventilation fans &
Notify personnel to close all air vents affected in underground stations
During metro HAZMAT incidents, establish initial hot zone of ___ in all directions and secure WMATA personnel in a safe location.
1500 feet
During a Metro hazardous material on train, never __.
Never mover an above ground incident train underground , stop incident train in place and wait emergency response personal .proceed in manual at 5 mph.
The metro radio code for hazardous material incident is __.
Blue-blue
For metro hazardous material on right of way, train shall____.
Stop train traffic in both directions. ‘
Shut down HVAC & tunnel ventilation
Reverse trains to closest non-affected station at 5 mph & evacuate
Evacuate station and direct passenger to remain until cleared by IC
___ zone is an area that has been determined to be free of secondary devices and out for the hazardous zone , clear of any station entrance , escalator, elevators, vent shaft or emergency exit where dangerous fumes may escape to the atmosphere .
Safe zone
If practical a safe zone should be ___wind at least __ from any point of danger .
Upwind
1500 feet
Personnel authorized to act as on scene commander (OSC) and also indicate the probable change of command at the scene are :
-Train operator
-Rail operations supervisor
-Senior rail operations supervisor
-Chief rail operations supervisor
-Assistant superintendent RTRA
-SUPERINTENDENT RTRA
-assistant general superintendent of rail transportation
-general superintendent of rail transportation
-chief operating officer , rail
-deputy general manager of operations
If none of the above personnel are present at the scene , OCC shall appoint an OSC from personnel available .
Personnel authorized to act as maintenance commander (MC) are:
-mechanic
-supervisor (SMNT, PLNT, or TRST)
-assistant superintendent (SMNT, PLNT,or TRST)
-superintendent (SMNT, PLNT,or TRST)
-assistant general superintendent (SMNT, PLNT,or TRST)
-general superintendent (SMNT, PLNT,or TRST)
-chief operating officer , rail
In none are present at the scene MOC shall appoint a MC
Appoint individuals to provide Pueblo address announcements ,at ___intervals , to patron aboard the incident train and or inside the incident station.
5 minute
Metro Medical assistance for passengers or employees shall be requested through the ____.
Operations Control Center
When the fire on the metro train car is of major proportions , the train operator shall attempt to_____;
Secure the train and remove third rail power from the involved power section .
Attempt to uncouple the unaffected cars and mover them about 100 feet from the affect car.
The Metrorail Emergency Services Manual; what is the tactical considerations for using tunnel fans during evacuations?
If fans are not in operation, shafts may experience the chimney effect.
The types of flammable gases and vapors encountered near the Metrorail right-of-way are gasoline, liquefied petroleum gas (LPG) and natural gas. What gases and vapors are the MOST likely substances to be found?
Gasoline and LPG.
Five types of sensors are used in the Metrorail fire alarm system. Which type is used in sensitive or critical areas, such as train control rooms and communication rooms?
Ionization detectors
When a station fire alarm is activated, the electrical power to the escalators providing entry into the station will be shut down automatically. There is up to a _____ delay from the time of fire alarm activation to the time of escalator stoppage.
2-minute
Chain markers are part of a system of measurement along the right-of-way. The
second piece of information in a typical marker, a number, indicates the _____.
track number
Which of the following statements about tunnel emergency exit shafts is CORRECT?
In the tunnels proper, emergency exit shafts may be located in vent shafts, fan shafts or single-use “emergency exit shafts” between stations.
