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Multiple Choice

What is the full name for the abbreviation MM?

MM stands for Machinist's Mate, the Navy engineering rating responsible for operating and maintaining shipboard machinery and propulsion systems. This abbreviation directly reflects the role’s focus on mechanical systems such as engines and related equipment. The other options are different Navy ratings with their own distinct names—Mass Communications Specialist, Master-at-Arms, and Logistics Specialist—so they do not match MM.

MM stands for Machinist's Mate, the Navy engineering rating responsible for operating and maintaining shipboard machinery and propulsion systems. This abbreviation directly reflects the role’s focus on mechanical systems such as engines and related equipment. The other options are different Navy ratings with their own distinct names—Mass Communications Specialist, Master-at-Arms, and Logistics Specialist—so they do not match MM.