On an EHSI, information shown in white indicates what status?

• A. Armed
• B. Active
• C. Selected
• D. Available

Answer: (A)

Color coding on the EHSI is used to show how a navigation or autopilot cue is standing by versus actively in use. When information appears in white, that signals an armed state — the mode or cue is configured and waiting to engage automatically when the specified criteria are met. It’s a readiness indicator, not a current engagement.

For example, you may have an approach mode armed so that, once you intercept the localizer and glideslope, the system will capture automatically. Until that capture occurs, the display item stays white. When the mode actually engages and becomes active, the color typically changes to green (or another color your system uses to denote active).

So the white indication isn’t showing something currently flying or chosen to be used right now; it’s showing something that’s prepared to activate. The other statuses described by the other options don’t fit this standby, ready-to-engage meaning. Active would imply it’s already in use, which is not what white denotes here. Selected would imply you’ve picked it, not that it’s queued to engage. Available is not a status typically shown on the EHSI in this way.