You're considered inbound when you're 137 course is centered on your LOC. "course alive" means that you can start your turn to follow your loc course to intercept the 137 inbound. This is basic IFR flying. If you're getting ready for an interview, you might want to hit up a CFII.
Last edited by Luv2Rotate; 07-31-2011 at 02:10 PM.