Final answer:
The Master Chief Petty Officer of the Navy is responsible for advising the CNO, advocating for enlisted personnel, and setting standards for the Navy's enlisted force. However, they are not responsible for conducting ship maintenance.
Step-by-step explanation:
The Master Chief Petty Officer of the Navy is the highest-ranking enlisted member of the United States Navy. While their responsibilities include advising the Chief of Naval Operations (CNO), advocating for enlisted personnel, and setting standards for the Navy's enlisted force, they are not responsible for conducting ship maintenance. Ship maintenance is typically handled by enlisted personnel with specialized training and expertise.