OSH Security Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 430

What radio 10 code is used when you don’t understand what the dispatcher has said and you need them to repeat their transmission?

10-78

10-99

10-9

The code used when you need the dispatcher to repeat their transmission is 10-9. This code is specifically meant to indicate that the communication was not clear or understood, prompting a repetition for clarification. In communication protocols, especially in radio communications, clarity is crucial for effective response and situational awareness. By using 10-9, the listener communicates explicitly that they require the information to be restated, ensuring that misunderstandings can be avoided.

Other codes serve different purposes. For example, 10-78 typically indicates a request for assistance, which does not address a misunderstanding of transmission. Similarly, 10-99 is used to indicate a wanted or stolen vehicle, and 10-4 simply acknowledges that a message has been received and understood. This distinction of purpose highlights why 10-9 is the correct choice in scenarios where clarity of communication is needed.

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10-4

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