Drill Competition Inspection Practice Test 2026 - Free Inspection Practice Questions and Study Guide

The term that corresponds to the letter "D" in the Phonetic Alphabet is "Delta." The Phonetic Alphabet, also known as the NATO phonetic alphabet, is a set of code words used to communicate letters clearly and unambiguously over voice communication. Each letter of the alphabet is assigned a unique code word to avoid confusion, especially in noisy environments or where misunderstandings might occur.

In this case, "Delta" represents "D," and is widely recognized and used in various contexts such as aviation, military, and emergency services. This helps ensure clarity when spelling out words or communicating critical information, as each code word is distinctly different from the others, promoting effective communication.