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AO Study 2020 > *TB 70- Metro Rail Blue Line > Flashcards

*TB 70- Metro Rail Blue Line Flashcards

1
Q

Metro blue line:
Along the mid-corridor there are intersections equipped with crossing gate arms, flashing lights and bells which are automatically activated when the train is about ____ feet from a crossing. The time between warning device activation and train arrival is approximately ___ seconds.

A
  • 500 ft

* 20 sec

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2
Q

Metro blue line:
On station platforms built above ground level, ____ (wet/dry?) risers with ____ inch outlets are provided for fire department connection.

A

Dry

2 1/2”

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3
Q

Metro blue line:
At the blue line subway station and trail track there are 5 emergency exits found on opposite sides of the tunnel and spaced approximately ___ feet apart

A

800 ft

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4
Q

Metro-rail blue line subway:
Tunnel emergency walkways run parallel to the tracks on the (metro-rail cars) outboard side, and are ____ inches in width.

A

30”

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5
Q

Metro blue line:
In the metro-rail tunnel, spaced approximately ___ feet apart there is either a 2-1/2 inch wet standpipe outlet at track level, or a 2-1/2 inch wet standpipe outlet in an emergency exit. An audio jack for a sound powered phone is also provided.

A

250 ft

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6
Q 
Metro blue line:
Tunnel ancillary (non-public) areas are protected by overhead automatic sprinklers; the exceptions are the Train Control and Communications Room which has a \_\_\_\_ System, and the Department of Water and Power vault which is equipped with a fire detection system only. The Auxiliary Power Rooms are protected by \_\_\_\_\_ (type?) sprinklers.
A
  • halon

* pre-action

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7
Q

Metro blue line:
In the metro-rail tunnel, the public use areas are not sprinklered, but will have hose cabinets spaced not greater than ____ feet apart. What does each hose cabinet have?

A
  • 250 ft

* 2-1/2” outlet for LAFD use, 1-1/2” hose for occupant use, and a fire extinguisher.

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8
Q

Metro blue line:
A manually activated under-car ____ sprinkler system, protects portions of the Blue Line track where the train would normally expect to stop; such as the subway passenger loading platform and the subway tail track

A

Deluge

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9
Q

Metro blue line:
In the metro-rail subway station, the _____ panel is similar to an annunciator panel. It indicates the location(zone) and nature of the alarm, and status of ventilation fans

A

Emergency Management Panel (EMP)

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10
Q

Metro-Rail blue line subway station:

From the Emergency Management Panel, a member will be able to control/override what 3 things?

A
  • ventilation fans
  • recall the elevators
  • stop the escalators (downward flight only).
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11
Q

The metro-rail blue line uses a “_____” (light/heavy rail?) car.

A

Light-rail

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12
Q

Metro-rail blue line:
The ends of the light-rail car are referred to as the ___ and ___ ends.

Which end serves as the point of attachment for the pantograph?

A
  • “A” & “B” ends

* “A”

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13
Q

Metro-rail blue line:
Each rail car is ___ feet long, approximately ___ feet wide and the height, measured from the top of the tracks to the roof of the train, is ___ feet.

A
  • 90 long
  • 9 wide
  • 11 1/2 high
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14
Q

Metro-rail blue line:

From the floor of the rail-car to the railroad bed is ___ inches.

A

39”

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15
Q

Metro-rail blue line:

The rail-car maximum height is ___ when the pantograph is fully extended

A

23’6”

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16
Q

Metro-rail blue line:

There are four double sliding doors on each side of the “light rail” car and they measure what height and width?

A

6’6” high by 4’ wide

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17
Q

Metro rail blue line:
There are two door releases accessible from the exterior of the light-rail car. Emergency personnel may open this panel without a key, by using an implement such as a ____ or ____

A

Pen or pencil

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18
Q

Metro-rail blue line:
All interior and exterior windows of the rail car are made of ____ material. What are the two ways to gain entry into these windows per TB #70?

A

Polycarbonate (lexan)

Entry with carbide-tip rotary saw or removing the weather stripping around the window.

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19
Q

Trains on the Metro Blue Line are powered by ___ volts of direct current, distributed to the cars by an Overhead Catenary System

A

750v

20
Q

Metro rail blue line:
Emergency Trip Stations are located at Traction Power Substations and identified by a ____, which is visible above the roof of of the Traction Power Substation structure.

A

Blue light

21
Q

Metro rail blue line:

The height of the Overhead Catenary System varies from ___ to ___ feet

A

18-22 ft

22
Q

Metro rail blue line:

The foot pump to manually lower the pantograph is located where?

A

Under the second forward facing seat (left side) of the car’s “A” section.

(When lowering pantograph listen for the lock to click)

23
Q

Metro rail blue line:

What are the two ways to lower the pantograph during a rail car emergency?

A
  • Electronically from operators cab

* manually via a foot pump

24
Q

Metro rail blue line:
Lowering the pantograph will de-energize the train, but on board batteries will continue supplying ___ volts DC to the interior lighting system, doors, radios, and the unit thatlowers the pantograph

A

37.5v

25
Q

Metro rail blue line:
In the event evacuation of the metro-car is necessary and the car is not at a station platform, what two ground ladders can be used to facilitate passenger unloading?

A

12ft extension

14ft extension

26
Q

Metro rail blue line:
Isolated portions of the metro-rail track, which serves as temporary storage or repair sites for metro-rail cars is known as?

A

Tail track

27
Q

Metro rail blue line:

The pantograph is extended under ____ pounds of spring pressure.

A

22

28
Q

Metro rail blue line:

The height of the platforms range from ___ to ___ feet

A

4 (ground level) to 35 ft

29
Q

Metro rail Blue line:

If the need arises to warn or stop oncoming rail traffic, members can consider the use of flares or red flags spaced approximately ____ feet in both directions from the incident.

A

800 ft

30
Q

Metro rail blue line:

When applying its service braking (non-emergency) system, the train will take approximately ____ feet to stop from its max speed of ____ mph. In wet conditions, the stopping distance can double.

A

800

55

31
Q
  1. Northbound traffic from Long Beach uses the _____ rail
  2. Southbound trains from Los Angeles travel on the _____ rail

Which is considered track #1 and which is track #2?

A
  1. East (track 1)

2. West (track 2)

32
Q

The metro blue line tunnel is about ____ of a mile long

A

8/10

33
Q

Fire protection within the blue line subway station/tunnel consists of what three things?

A
  • sprinklers
  • wet standpipes
  • special extinguishing systems.
34
Q

Ventilation in the blue line tunnel is normally accomplished by moving air and smoke from the tunnel, and exhausting it outside at grade level. This function is routinely performed by two subway ventilation fans. Additionally, how many emergency ventilation fans can be brought on line for emergency use?

A

4

35
Q

Communication functions available at the Emergency Management Panel include what three things?

A
  • Public Address System
  • Land line (Fire Telephone) connected to the Central Control Facility
  • Outside line which is accessible by depressing #9 on the telephone keyboard

*Additionally, a sound powered Emergency Telephone will provide communication between the Emergency Management Panel, Station Command Post locations, Fire Department Connection (FDC) inlets, and all 2-1/2 inch outlet locations

36
Q

Metro rail blue line:

Station Command Posts (SCP) are located inside subway stations and serve as a communication link. In addition to sound powered phones, land lines, and a Public address system, the Station Command Post will also have a means of controlling what two things?

A
  • escalators and (will also display escalator status)
  • Stop or recall the elevators

The only SCPs are located at the tail track access point (6th and Flower) and the other at the East Metro Rail Entrance (7th and
Home/Central Bank Building).

37
Q

The maximum capacity of each metro rail car is ____ passengers.

A

237

38
Q

Overhead Catenary System (OCS) contains several interdependent components:

The constant tension _____ wire supports and energizes the contact wire.
_____ provide spacing between the messenger and contact wires.

A

Messenger

Hangers

39
Q

The _______ is the specific police agency which will respond to all metro rail incidents.

A

Los Angeles County Sheriff Departmen

40
Q

True or false?

The Incident Commander who requests a shut down of the Overhead Catenary System will have the sole authority to re-energize the system.

A

True

The rail system controller must be notified when any change of command occurs. This will be done by the Incident Commander who initially requested shut down of the overhead Catenary system. The new Incident Commander now holds authority to release power to the Central Control Facility.

41
Q

The speed of the cars will vary according to which segment of the track the vehicle is transiting. It’s minimum speed of 5 mph is found on shop tracks or 90 degree curves on City streets, while its maximum operating speed of ____ mph occurs in the Mid-Corridor.

How long will it take a train to stop at max operating speed?

A

55 mph

800 ft

42
Q

Track safety:

Allow ____ feet of clearance between yourself and the train cars in case of sudden movement.

A

10 ft

43
Q

Track safety:

Footing along the metro-rail line is a concern, since the rails themselves are slick and could be ______

A

Energized

44
Q

Track safety:

When an Emergency Trip Station is used to shutdown traction power, it _____ (will or will not?) eliminate the possibility of a track switch being opened or closed remotely.

A

Will not

45
Q

Metro blue line:

Traffic lights that provide breaks for metro-rail traffic are known as ____ signals.

A

“T” signals

AO Study 2020 (101 decks)

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