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SGT Exam > Metro ESM > Flashcards

Metro ESM Flashcards

1
Q

The Metro radio system code for a collisions or derailment is?

A

Black Black

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2
Q

The Metro radio system code for person jumping into the track bed or person struck by a train is?

A

Purple Purple

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3
Q

Which of the following best describes the last 42 inches closest to the track bed of a Metro station platform?

A

24 inches of bumpy terrazzo tile and 18 inches of granite surface

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3
Q

The third rail sits approximately ____ inches above the running rails.

A

4 ½

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4
Q

A geographical area or an operational function assigned by the Incident Commander is?

A

Sector

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5
Q

In fire emergencies where a Metro Station’s fire detection system activates, what will automatically happen to the escalators and fare gates?

A

The escalators from the street level to the mezzanine level will stop, and the fare gates will lock in the open position.

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6
Q

To access a Metro Station elevator machine room, what key must be used?

A

Master Key

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7
Q

How far apart are wayside telephones in ETS (blue light) boxes apart from each other?

A

800 feet apart

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8
Q

What are the 4 settings on a metro ventilation control box?

A

Emergency exhaust, emergency supply, automatic operation, off

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9
Q

Standpipe connections are located every ________ feet in platform floor?

A

200 feet

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10
Q

The horn sound when the WSAD detects _____ volts or more and ______ volts or more will activate the strobe light?

A

50 , 400

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11
Q

All rails and stations from one of the line to the opposite end of the line, and areas where passengers have access to ride the system, are defined as?

A

Revenue areas

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12
Q

Start-up can be contacted by dialing what 4 digit number?

A

1081

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12
Q

What is the optimal ratio of cell phones to land line phones for the conference call?

A

3 to 1

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12
Q

What is the footage interval for Wayside phones?

A

800

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13
Q

What number do you dial to contact OCC on the wayside phones?

A

0

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14
Q

What is the primary method of air exchange in tunnels?

A

Train movement

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15
Q

Where is the fire and intrusion cabinet located in a Metro system?

A

Communication Equipment Room

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15
Q

In the event of a chemical, or biological release I the metro system, what mode should the ventilation fan system be in?

A

Off Mode

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16
Q

Tunnel ventilation, what is the mode where dampers are open, but fans are not operating, and train movement provides ventilation?

A

Normal temp mode

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17
Q

Flammable vapor and gas detection sensors are calibrated that a warning is transmitted if ____ percent of lower flammable limit and an alarm is transmitted when ____ percent of the lower flammable limits is met.

A

20 / 40

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18
Q

How many pounds of pressure does it take to activate the sidewall panel to stop an escalator?

A

150 lbs.

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19
Q

What is the average width of an escalator?

A

40 inches

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20
Q

What is the escalators rise at an incline angle?

A

30 degrees

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21
Q

How many minutes delay from the time of the fire alarm is activated to the time the escalators stoppage?

A

2 min

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22
Q

Where is the floating concrete track slabs located at?

A

Where noise reduction is required.

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23
Q

How many Volts of power are present in the Electric Train Line?

A

37.5 volts

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24
Q

According to the Metro Emergency Services Manual what is the only power transmitted between railcars?

A

Electric Train-line Power

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24
Q

The PABX phone can be used to contact OCC by dialing what number?

A

1970

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25
Q

Portions of the Metro System that is not open for revenue operations fall under the control of whom?

A

Start-up

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25
Q

Cool air is supplied to an underground Metro Station when the temperature exceeds how many degrees Fahrenheit?

A

70

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26
Q

The Metro intrusion Detection and Warning System is divided in two zones that are approximately how long?

A

2000 feet

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27
Q

Metro ventilation shafts that do not have a raised curb around the opening will have a flammable vapor and detection system located where?

A

At the base of the shaft

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28
Q

Which of the flowing is true in regards to Halon 1301?

A

It is heavier than air

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29
Q

The system for controlling train movement through the system consists of 3 control subsystems and a computerized central control facility at OOC

A

Automatic train protection (ATP)
Automatic train supervision (ATS)
Automatic train operations (ATO)

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30
Q

In a subway station where does the demarcation between “free” and “revenue” occur?

A

Mezzanine

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30
Q

How many Metrorail cars can a subway station handle in length?

A

8

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31
Q

What is the primary means of evacuation from a metro station?

A

Escalators

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32
Q

To originate a call from the elevator care what button do you push?

A

The press to talk button

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32
Q

A metro subway station could have up to how many elevator rooms?

A

4

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33
Q

Should heat or smoke alarm activate and not be reset the fare gates will lock in the open position after how many seconds?

A

30

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34
Q

How wide is the bumpy Terrazzo tile surface on metro platform prior to entering the metro car?

A

24 inches

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35
Q

When does the revenue side begin at the metro station?

A

When you pass through the fare gate

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36
Q

What does PERS stand for that located in the KIOSK?

A

Passenger emergency reporting system

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37
Q

When passengers are trapped in metro elevators there is one employee that will try to free passengers from elevator prior to Fire/Rescue units. What employee is authorized to do this at the metro station?

A

Station manager

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38
Q

The elevators in use at metro stations are primarily intended for movement of handicapped person from street level to the mezzanine and to the platform level. There is one exception and that is what station in the metro system?

A

Forrest Glen station

39
Q

For how many hours is the fire resistance rating of metro passenger stations?

A

2

40
Q

The entrance to each Metrorail Station is marked by a distinctive bronze colored pylon with what at the top?

A

A lighted “M” on all four side at the top

41
Q

What is the normal length of an underground platform?

A

600 feet

42
Q

Where is the panel for monitoring any station’s fire and intrusion systems located?

A

The kiosk

43
Q

In a metro station, if the heat or smoke alarm activates and is not reset, how long do the fare gates take to lock in the open position?

A

30 seconds

44
Q

All stations provide passengers with how many means of egress?

A

2

45
Q

To attempt to “free up” a stuck elevator, for how long should power be removed at the panel to the appropriate elevator?

A

15-20 seconds

46
Q

What does “Amber-Amber” mean?

A

The Metro radio system code designation for a fire

47
Q

Red Tag Third Rail Power removal is the procedure of removing third rail power by physically disengaging large circuit breakers in traction power substation and/or tie breakers. Who gives the approval to reinstate power?

A

Incident Commander

48
Q

Who is responsible for providing information to the media regarding the mitigation of an emergency in the Metro System?

A

Fire/Rescue Incident Commander

49
Q

By utilizing the key controls, the escalators can be placed in the mode necessary to assist in evacuation. Where are the ‘key controls’ located at the Metro stations?

A

They are located to the left of the escalator as you face it, on the landing closest to the kiosk.

50
Q

What practice of stopping an escalator is no longer encouraged?

A

Striking the sidewall panel at a point where the steps flattened out, prior to passing the comb plate at the top or bottom of the escalator.

51
Q

A pressure switch is located at certain points to stop the escalator should it detect something caught between the sidewall panel and the step. How many pounds of pressure are needed to activate the system?

A

150lbs

52
Q

Single access stations, those with only one set of escalators to access the station, have an automatic fire suppression system, what type is it?

A

Deluge sprinkler system

53
Q

Entry escalator will be shut down automatically when fire alarms are activated when?

A

With a 2-minute delay

54
Q

In Metro Ops, what does to term ‘right of way’ describe?

A

The areas between the fences and tunnel walls, where the track bed is located.

55
Q

What is used to ‘block’ switches’?

A

Cribbing

55
Q

What are the ‘running rails’ constructed of and it’s use?

A

They are constructed of a continuous welded steel rail that acts as a negative return for electric traction power.

56
Q

How far apart are signs located in the tunnels to show direction and distance to the next station or emergency exits?

A

800 ft.

57
Q

Tunnel ‘Safety walkways’ is what width, and located where?

A

They are 22 inches wide and located opposite the ‘third rail’.

57
Q

How far apart are ‘Danger High Voltage’ signs?

A

250 ft

58
Q

Where are ‘no clearance’ signs located?

A

Every 50 ft in areas of no clearance

59
Q

What is the maximum travel distance to emergency exits?

A

1250 ft.

60
Q

What are the three (3) types of Metro tunnels?

A

Circular, Horseshoe, and Box (Cut and Cover)

61
Q

How much power does the Traction Power Substation (TPSS) supply the service yards?

A

750 volts DC

62
Q

What is the purpose of the ‘Tie breaker station’?

A

To provide uninterruptible third rail power supply for the yard.

62
Q

For Rail cars, what is the maximum weight and spacing on the roofs?

A

250 lbs, spaced 30” apart

63
Q

The batteries on all rail cars are connected in parallel. The battery system will supply power for up how many hours?

A

Two hours

64
Q

Metro rail system has three distinct types of electrical systems what are they?

A

Traction Power System, AC Power System, and Battery Power System

65
Q

A gray protective fiberglass cover is located over the third rail, how much pounds of force can it withstand?

A

250lbs per inch

66
Q

The maximum length of a section of third rail?

A

800 ft

66
Q

Wayside Telephones in the Metro Rail System can be found in the ETS (blue light) boxes:

A

At the end of every station platform.
Occasionally in some service rooms.
Along the track right-of-way at approximately 800-foot intervals.

67
Q

As trains in the Metro Rail System move forward in the tunnel air is forced ahead of the train and air is also drawn behind the train. This is known as:

A

The piston effect.

68
Q

Fixed Temperature Detectors in the Metro Rail System activate when the ambient temperature exceeds:

A

135 degrees Fahrenheit.

68
Q

The controls for the Metro escalators are located?

A

On the left side of the escalators as you face them.

69
Q

Standpipe outlets in the platform floor of the Metro Rail System are located every:

A

200 feet.

70
Q

How many hours will the emergency battery power last when the tunnel emergency power is on?

A

3 hours

71
Q

Circuit breaker facilities for traction power are located approximately how far from the traction power substations?

A

½ Mile

71
Q

Vent shafts are found within feet of the ends of subsurface stations?

A

100 feet

72
Q

Chain Marker sign in the Metro is displayed how far along the right-of- way?

A

Every 100 feet

73
Q

For how many hours is the fire resistance rating of metro passenger stations?

A

2

73
Q

METRO ventilation domes contain fans and relief dampers that open when temperatures reach what degree Fahrenheit?

A

70 degrees

74
Q

Fans shaft in METRO tunnels contain how many 60 inch fans?

A

2-7

75
Q

Fans in METRO tunnels supply how many cfm’s of air?

A

35,000

75
Q

Fans in the Metro tunnels exhaust how many cfm’s of air?

A

50,000

76
Q

What is the primary means of evacuation from a metro station?

A

Escalators

77
Q

Any Metro emergency within the yard or yard tracks must be coordinated through?

A

Yardmaster

77
Q

Brushes recently added to the escalators in metro to prevent passengers from being caught between the sidewalls and moving steps are known as what?

A

London Brushes

78
Q

When OCC is notified that there is a need for the fans to be activated there is a delay of up to how long before the system may be started?

A

40-60 seconds

78
Q

There are three types of gases that Metro considers to be the most likely to enter the system, what are they?

A

Gasoline
LPG
Natural gas

79
Q

What are the two distinct ventilation conditions inside metro tunnels and underground stations?

A

Normal and Emergency

80
Q

What is the discharge rate of the deluge sprinkler systems that are installed in the escalator pans of single entry metro stations?

A

5 gpm

81
Q

Fire/Rescue personnel should never attempt to lower or raise a electric traction elevator, is this statement true or false ?

A

true

82
Q

On electric traction elevators, how much heavier is the counterweight system than the weight of the car and its expected maximum load?

A

40%

83
Q

The Rohr cars are equipped with only one fire extinguisher. The extinguisher is located

A

In the operator’s compartment

84
Q

Which of the following is the recommended procedure for removing trapped victims from escalators?

A

To pry the step away from the sideboards

85
Q

The Metro system is designed to handle up to ____ set of married pairs in one train. This constraint is due to the maximum length of each station platform, which is _____ feet.

A

4; 600

86
Q

Which room in the Metro contains an automatic sprinkler system, because this room is the only room that can store combustibles.

A

Cleaners room

87
Q

On a hydraulic elevator in the metro system, what color and shape is the emergency lowering valve handle?

A

Red with a T shaped handle

88
Q

Which station only uses elevators has a means of passenger entrance?

A

Forest Glen Station

89
Q

Which surface station platform configuration places the third rail near patrons?

A

Center

90
Q

To communicate during elevator emergencies you must use the ______ phone located in the elevator machine room.

A

PABX

91
Q

After the emergency pull switch is returned to normal position the elevator car will begin moving in how many seconds

A

5 sec

92
Q

Who is accountability at the secondary location of a metro box? (2 Engines 1 Truck)

A

2nd due engine

93
Q

Who is water supply at primary location of a metro box?

A

4th due engine

94
Q

In the tunnels, proper, emergency exit shafts may be located in vent shafts, fan shafts, or single use “emergency exit shafts” between stations

A
95
Q

Tunnel ventilation is achieved by four different modes of operation. In the normal temperature mode (59 to 95°F), _______

A

Dampers are open, but fans are not operating

SGT Exam (11 decks)

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