Hi Kerry,
i did my apprentiship through british gas in 2003 i think it was now.
after the initial phone interviews came a series of tests (english, maths, spacial awareness etc) and a final interview after the results were in from the tests. i was new into the industry when i applied for this and wasnt quite sure on the wire colours of a plug, ha. but the fact that they are going to put you through an apprentiship, that doesnt matter too much. They just want to know that you are of a certain level of intelligence/integrity and will see htrough the course and be an asset to the company.
Im from Essex (no jokes please) and had to move to Leeds for a year to study at the Engineering academy there.
I cannot fault the Apprentiship i was put through, best in the industry im told, and they really invest money in you, so want you to suceed!!
Good luck with it all and if you have any questions just ask.
G