Metro ESM 11 Flashcards by Sean Brooks

From the Metro ESM

What is the WMATA fire and intrusion alarm system designed to detect?

abnormal conditions such as fire, smoke, hazardous vapors, derailments, or unauthorized entrance into sensitive, unoccupied, or remote areas

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From the Metro ESM

What are the (3) major components of the fire and intrusion syatem?

F&I cabinets; the panel; sensors

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From the Metro ESM

The system interfaces with ____, and the ____.

automatic fare collection; data transmission system (DTS)

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From the Metro ESM

Each station’s equipment can accomodate up to (24) fire and (24) intrusion zones. True or False?

TRUE

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From the Metro ESM

How are unused zones marked?

as spares

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From the Metro ESM

Where is the fire and intrusion cabinet located?

communication equipment room

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From the Metro ESM

Fire and Intrusion cabinets are the ______ of all signals received from the sensors and they provide an ____ to the F&I panel, DTS, and automatic fare collection equipment.

focal points; interface point

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From the Metro ESM

How many cabinets are at each station?

at least (1) cabinet

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From the Metro ESM

What does the F&I panel located at the station’s kiosk display?

alarm conditions and sensor malfunctions

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From the Metro ESM

What color is illuminated when the zone is considered “normal”?

white

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From the Metro ESM

What occurs when a fire or intrusion sensor activates?

zone “alarm” indicator will flash red and the audio alarm will sound

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From the Metro ESM

What occurs when the “alarm acknowledge” indicator is depressed?

alarm indication will illuminate steady red

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From the Metro ESM

Depress the “trouble acknowledge” indicator and the audio alarm will ____.

stop

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From the Metro ESM

When the alarm is cleared, how can the alarm indication go back to normal?

depressing the “rest” push button

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From the Metro ESM

What will a malfunctioning detector circuit cause?

the “normal” indication to extnguish

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From the Metro ESM

According to Diagram 11-1 F&I Panel, what are the (3) remaining push buttons?

Lamp Test; Manual Fire Alarm, Manual Intrusion Alarm

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From the Metro ESM

Which button will illuminate all the buttons to see if they operate properly?

A.Lamp Test B.Manual Fire Alarm C.Manual Intrusion Alarm Ans: A

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From the Metro ESM

Who can usethe Manual Fire Alarm button?

station attendant

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From the Metro ESM

A Manual Intrusion Alarm is used to send in an intrusion alarm if they notice or are advised of ________.

someone illegally entering restricted areas

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From the Metro ESM

How many types of sensors are used in the fire alarm system?

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From the Metro ESM

There are (3) types of ionization detectors. True or False?

False; there are (2) types of ionization detectors

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From the Metro ESM

Name the (5) types of sensors

(2) ionization; combination fixed temperature; temperature rate-of-rise, fixes-temperature; water flow switches

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From the Metro ESM

One type of ionization detector is used in sensitive or critical areas, such as ______ and ______.

train control rooms; communication rooms

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From the Metro ESM

The other ionization detector is installed in the _____ of the ________.

air duct plenums; mechanical equipment room

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# From the Metro ESM Combination Fixed-Temperature and Temperature Rate-of-Rise Detectors activate if the ambient temperature exceeds ___ or if the temperature rises greater than ___ in one minute.

135 degrees F; 15 degrees F.

# From the Metro ESM Where are the Combination Fixed-Temperature and Temperature Rate-of-Rise used?

escalator pits, some sensitive and critacal rooms and in all the sercice rooms, hallways, lavatories and elevators

# From the Metro ESM Where are the Fixed-temperature detectors used?

exclusively in fan and vent shafts

# From the Metro ESM When do Fixed-temperature detectors activate?

when the ambient temperature exceeds 135 degrees F

# From the Metro ESM What are Water Flow Switches attached to?

Fire sprinkler systems, deluge sprinkler systems, and to standpipe systems

# From the Metro ESM When does a Water Flow Switch transmit an alarm?

when water is flowing through the system

# From the Metro ESM Sensors are found in (2) forms. True or False?

TRUE

# From the Metro ESM What are the (2) forms of sensors?

a paddle in the piping; a pressure switch

# From the Metro ESM How does a paddle operate?

moves when water passes

# From the Metro ESM How does a pressure switch operate?

activates as the pressure drops upon system activation

# From the Metro ESM Intrusion alarms are comprised of ____, ______, and ____ and ___ loops.

magnetic switches; mechanical switches; wire; foil

# From the Metro ESM What should personnel be aware of when entering the Metrorail system?

they may trip one of these systems

# From the Metro ESM When shouold personnel contact OCC?

before entering the system or as soon as entry has been accomplished

# From the Metro ESM How many types of magnetic sensors are used by Metro?

# From the Metro ESM One type of magnetic sensor has a ____ capability.

key override

# From the Metro ESM Where is the "key overide" type of magnetic sensor used?

inside of doors

# From the Metro ESM One of the magnetic doors require opening by ______.

Metro employees

# From the Metro ESM What overrides the alarm signal so the door can be operated from inside the Metro system?

key operated push button

# From the Metro ESM Can the other magnetic sensor be overriden?

# From the Metro ESM Where are the sensors found?

street access hatches, grates, and doors

# From the Metro ESM Mechanical sensors are _____ limited switches and ____ be overridden.

spring-operated; cannot

# From the Metro ESM Where do mechanical sensors appear?

overhead doors to detect when the door is opened

# From the Metro ESM Where are wire and foil loops used?

ventilation openings and on windows

# From the Metro ESM If a wire or foil is cut, will it trasmit an alarm?

Yes; it would break th e circuit and transmit an alarm to OCC

# From the Metro ESM When any alarm is received, where will it be displayed?

F&I panel in the Kiosk and at OCC on a computer screen

# From the Metro ESM Who is responsible to contact the Fire/Rescue services?

OCC

# From the Metro ESM Can OCC operators determine the exact location of a fire or intrusion alarm?

# From the Metro ESM What can be used to locate the fire or intrusion alarm?

Emergency Response maps

# From the Metro ESM The zone numbers on Emergency Response maps will correspond with the zone numbers on the ______.

Kiosk F&I panel

# From the Metro ESM Where are flammable vapor and gas detection systems located?

areas where a flammable gas or vapor would likely enter the system

# From the Metro ESM What types of flammable gas and vapors are encountered near the Metrorail right-of-way?

gasoline, LPG and natural gas

# From the Metro ESM Which substance is most likely to be foundbecause their vapors remain at ground level and accumulate in low points of an area? Gasoline, LPG, or both?

Both

# From the Metro ESM What will be installed to a vent shaft if it is not protected by a raised curb around the opening?

detection system

# From the Metro ESM These detectors will be ____ for the _____ that can be expected in the area.

calibrated; specific product

# From the Metro ESM Right-of-way detection systems are located every ____ feet alond with the ____ and at ___ gates.

800; ETS boxes; ROW

# From the Metro ESM An alarm is transmitted by the sensor if ______ are exceeded.

ambient vapor levels

# From the Metro ESM When is a warning transmitted?

if 20% of the LFL for the product is reached

# From the Metro ESM When is the alarm transmitted?

when 40% of the LFL is reached

# From the Metro ESM Where is the alarm amplified and transmitted to?

system monitor in the communications room serving the area

# From the Metro ESM Where is the alarm relayed to ?

OCC

# From the Metro ESM Where does the Intrusion Detection and Warning (IDW) system run?

along the sides of the Metro right-of-way

# From the Metro ESM Every 4th fence post is equipped with a ______ that activates if the fence post tilts more than ____.

tilt switch; 30 degrees

# From the Metro ESM How long does the low voltage wire run?

length of the fence that activates an alarm if it is broken

# From the Metro ESM Approximately, how long are the zones?

2000 feet in length

# From the Metro ESM When an alarm is received, what will OCC do with all trains that are aproaching the area

make radio contact and advise them of the intrusion so that they can slow to a safe speed

Metro ESM 11 Flashcards

(69 cards)