Dear members of this forum..can i plz get answer the following questions abot undergound 1996 stock.

1) how does the power supply and distribution works on 1996 stock undergroundtrains ?(please provide any engineering digrams if posible)
2)how does the braking system works on 1996 stock works?
3) common faults on this stock trains
4) information about hvac system
5 )train dignosis and fault finding software..
6) information about underfram cheeks and coupler problems.. Door problems..etc
7) are the trains maintenence based on milage or mothly based.

I would be greatly thankfull if i could get any answers about the underground 1996 stock. This information provided would help me prepare to give better answers at my interviw.

With great intrest i m posting this question..

Thanking you


mk