Which of the following ranks does not belong to the enlisted category?

Warrant Officer is the rank that does not belong to the enlisted category. In military structure, enlisted personnel are typically those who join the armed forces and serve in various roles under the command of officers. They hold ranks such as Chief Petty Officer, Master Chief Petty Officer, and Senior Chief Petty Officer, which are all part of the enlisted ranks.

In contrast, Warrant Officers occupy a distinct category that bridges the gap between enlisted personnel and commissioned officers. They are highly skilled experts in specific technical fields and often serve in leadership roles, but they hold a rank structure separate from the enlisted category. This distinction emphasizes the differences in responsibilities, training, and leadership roles between enlisted members and warrant officers within the military hierarchy.