Which of the following ranks is associated with O1 in the Navy?

The rank associated with O1 in the Navy is Ensign. In the United States Navy, the officer ranks start at O1 with Ensign, which is the initial commission rank for newly graduated officers. An Ensign typically serves as a junior officer and is often assigned to various roles on ships or in naval facilities to gain experience and develop their leadership skills.

Lieutenant Junior Grade is the next rank, which corresponds to O2, while Lieutenant and Lieutenant Commander are higher ranks corresponding to O3 and O4, respectively. Understanding the rank structure is important for recognizing the hierarchy and roles within naval operations.