The rank Petty Officer First Class corresponds to which E-number?

• A. E-5
• B. E-6
• C. E-7
• D. E-8

Answer: (B)

Enlisted pay grades in the Navy are shown with E-numbers, and the petty officer ranks follow a clear sequence. Petty Officer Third Class is E-4, Petty Officer Second Class is E-5, and Petty Officer First Class is E-6. So the rank Petty Officer First Class corresponds to E-number six (E-6). The system continues upward from there with Chief Petty Officer at E-7, and so on. A quick way to remember is to link the progression from Third Class to Second Class to First Class with E-4, E-5, E-6.