Q. If outside the station limits the distance between two trains is ________ in averted collusion, such occurrence may not be treated as an averted collision.
Q. If the advanced starter and IBS are defective, SM shall issue T/369(3b) authority with private number of ________ station to pass both advanced starter and IBS.
Q. If the Advanced starter is defective and IBS is working, SM shall issue ________ authority with private number of same station to pass the advanced starter.