206.21 Light Rail Operations Flashcards

0
Q

What does OCS stand for?

A

Overhead contact system

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1
Q

What does LRV stand for?

A

Light rail vehicle

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2
Q

What does TPSS stand for ?

A

Traction powered substation

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3
Q

What does ETS stand for ?

A

Emergency trip switch

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4
Q

What does OCC stand for ?

A

Operations control center

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5
Q

What is a pantograph ?

A

Big mechanical arm that connects the LRV to the overhead wires

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6
Q

The ——— is an electrically powered public transportation system

A

Light rail system

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7
Q

Light rail vehicles are — feet long, —- feet high and —- feet wide cab at each end.

A

90, 12, 8.5

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8
Q

What is the maximum number of people that can go in a light rail vehicle?

A

200

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9
Q

What is the normal max operating speed of the light rail vehicle and how fast does it go during high-speed testing?

A

35mph, up to 55 mph

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10
Q

What is the stopping distance at 35 mph for the light rail vehicle?

A

Approximately 190 feet

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11
Q

How many pounds of force can a track switch exert?

A

1200 lbs

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12
Q

Can you manually operate a track switch when it is deenergized?

A

Yes

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13
Q

Traction power substations are located approximately how many miles apart?

A

Every mile

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14
Q

Where is the emergency trip switch located?

A

Outside the door in a Knox box

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15
Q

How many amps of electricity does an overhead contact system have?

A

2000-6000 AMPs

16
Q

The overhead contact system wires are tensioned at —– pounds for the top wire and —— pounds for the bottom wire

A

5000 ; 3000

17
Q

The normal height of the light rail overhead contact system wire is —– feet.

A

18

18
Q

True or false:

The tracks represent an additional lane of traffic that must be cleared when driving C-3

A

True

19
Q

True or false:

Never park apparatus on or between the light rail tracks

A

True

20
Q

When light rail vehicle traffic could compromise the safety of firefighters operating on or adjacent to the light rail tracks, Who should the company officers contact to request the operations control center to temporarily stop light rail vehicle traffic in the vicinity of the accident

A

Fire Dispatch

21
Q

Responding to an EMS call on the light rail vehicle you should have the operator show you —————-. This engages the break and disables the throttle ensuring the light rail vehicle won’t move.

A

The key is out

22
Q

True or false:

As long as the light rail vehicles functioning normally and on the track there’s no need to shut down power.

A

True

23
Q

When responding to a light rail vehicle versus another vehicle need to be aware of the possibility of what?

A

Electrocution of derailed light rail vehicles

24
Q

Where is the easiest access for extrication and where is it located?

A

Through the light rail vehicle doors and one is located on each side of the vehicle

25
Q

True or false:

Windows on the light rail vehicle are easy to break

A

False. They are extremely hard to break

26
Q

Metro has a vehicle that can safely lift light rail vehicles, but it has an estimated response time of:

A

30-60 minutes

27
Q

Do light rail vehicles have sprinklers for fire protection?

A

No

28
Q

Crews must ensure the light rail vehicle and the overhead contact system are ——– prior to attempting to extinguish any significant fires.

A

Deenergized

29
Q

OSHA requires any apparatus, ladders, or other equipment to maintain a —– buffer from underground electrical sources such as the overhead contact system

A

10 foot