Which displacement from the localizer centerline and glide slope indicates you are low and to the left of the ILS course?

The indication of being low and to the left of the ILS course is represented in the context of instrument approaches by the position of the aircraft concerning the localizer and glide slope signals. When positioned low, the vertical indication will show that the aircraft is below the glide slope. Simultaneously, being to the left of the localizer centerline is indicated by a lateral deviation to the left.

In this scenario, the position depicted in the correct figure illustrates both these conditions: a downward indication showing low altitude relative to the glide slope and a leftward indication in relation to the localizer. This visual representation helps pilots understand their precise navigation status relative to an Instrument Landing System (ILS) approach, allowing them to make timely corrections to ensure they are aligned with the intended approach path.

The other figures likely demonstrate different positions, such as being on the glide slope but off to one side, or being high or right of the localizer. These variations serve to teach pilots how to interpret the specific deviations indicated by the instruments and manage their approach to the runway accordingly.