Which E-number corresponds to Master Chief Petty Officer?

• A. E-7
• B. E-8
• C. E-9
• D. E-6

Answer: (C)

In the Navy, enlisted ranks map to pay grades called E-numbers, from E-1 up to E-9. The Master Chief Petty Officer is the highest enlisted rank, sitting at pay grade E-9, above Chief Petty Officer (E-7) and Senior Chief Petty Officer (E-8). The Master Chief Petty Officer of the Navy is the senior enlisted adviser and is also at E-9. So the E-number for Master Chief Petty Officer is E-9. The other options correspond to lower grades (E-7, E-8, and E-6).