Change 11 is not significantly different from Change 10. A requirement for identification of electronic component symbology has been added at the third class level. Study references are included. The Nonresident EM3 Course will be updated to include information about this new requirement. Servicewide Exams are only one tool used to rank order you for promotion after you are fully qualified for advancement.
Training also includes the maintenance of boiler systems, propulsion controls, and switchboards.