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, Are you on or near the line if crossing the line at a level crossing?
No
When are you on or near the line?
- when on the line - within 3m of the line (if there's no fence or structure between you and the
line) - doing engineering work on a platform 1.25m from the line
What is the aspect of a signal?
The light
If looking at a semaphore signal how do you know if there is danger/red light?
The arm is in a horizontal position
In what situation would you not stop at a semaphore signal when in a horizontal position?
If it was a yellow semaphore signal - distant signal
Which signals cannot always be put into danger red light by the signaller?
The automatic signals and semi automatic signals - have to use the SPRS to make it red and
this can only be done with a special key
What does SPRS stand for and what does it do?
Signal post replacement switch - manually makes automatic or semi automatic signals show
red, can only be operated using a special key
How many volts does OLE carry?
25,000 volts AC, trams or metro trains use 750volts DC
How far away should you stay at all times from live OLE equipment?
2.75m
What is the black cable connecting the OLE to running rail called?
The bond
What's another name for a conductor rail?
Third rail
How much volts does a conductor rail provide?
750 volts DC
What is the fourth rail?
In some locations (the tube) the tracks have an additional conductor rail in the 4ft, this is the
fourth rail