Metro ESM4 Flashcards
Throughout the Metro Rail System the Operations Control Center (OCC) controls the “revenue areas.” These areas are defined as:
The areas that 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.
Wayside Telephones in the Metro Rail System can be found in the ETS (blue light) boxes located _________.
At the end of every station platform.
Occasionally in some service rooms.
Along the track right-of-way at approximately 800-foot intervals
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:
The piston effect.
Fixed Temperature Detectors in the Metro Rail System activate when the ambient temperature exceeds:
135 degrees Fahrenheit.
Standpipe outlets in the platform floor of the Metro Rail System are located every:
200 ft
The WSAD used in the Metro Rail System will produce an audible alarm when 50 volts or more are detected, however the strobe light will not activate until ____ volts or more are detected.
400
The controls for the Metro escalators are located?
On the left side of the escalators as you face them.
“No Clearance” signs are located in areas where insufficient clearance exists along the Metro rail system. How far apart are these signs?
50 feet
How many hours will the emergency battery power last when the tunnel emergency power is on?
3 hours
What is the Metro radio system code designation for smoke in a rail car or in a station or tunnel?
Gray-gray
Vent shafts are found within ____ feet of the ends of subsurface stations?
100
Circuit breaker facilities for traction power are located approximately how far from the traction power substations?
1/2 Mile
Chain Marker sign in the Metro is displayed how far along the right-of- way?
Every 100 feet
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?
30 seconds
Fans shaft in METRO tunnels contain how many 60 inch fans?
2-7
Fans in METRO tunnels SUPPLY how many cfm’s of air?
35,000
Fans in the Metro tunnels EXHAUST how many cfm’s of air?
50,000
What is the primary means of evacuation from a metro station?
Escalators
A metro subway station could have up to how many elevator rooms?
4
To originate a call from the elevator care what button do you push?
The push to talk button
Brushes recently added to the escalators in metro to prevent passengers from being caught between the sidewalls and moving steps are known as what?
London Brushes
Any Metro emergency within the yard or yard tracks must be coordinated through?
Yardmaster
PABX (Private Automatic Branch Exchange) phones are not part of the wayside telephone system. They are found in service rooms, fan shafts, and also part of the kiosk phone links. What color are these phones?
Tan
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?
40-60 seconds
