BTEC unit 48 – Function and Characteristics of Railway Signalling Systems

[train_destroyer]

Currently completing a railway apprenticeship, which consists of a NVQ and BTEC level 3.
One unit is the BTEC unit 48 – Function and Characteristics of Railway Signalling Systems.
I need help with the questions.

[PJW]

Please be more specific about the help you wish.
Which question?
Is it that you don't understand it, you need guidance re where to find relevant information or exactly what?

Happy to give some hints, advice or assistance; not just to do your coursework for you.

Currently completing a railway apprenticeship, which consists of a NVQ and BTEC level 3.
One unit is the BTEC unit 48 – Function and Characteristics of Railway Signalling Systems.
I need help with the questions.