Element 9 Demo Exam Options Simulated exam 50 questions - Pass/Fail. All my correctly answered questions. All my incorrectly answered questions. All my unanswered questions. All - 250 questions. Subelement 9A -- Radio System Theory -- 71 questions. Subelement 9B -- Amplifiers, Power Sources, Troubleshooting -- 67 questions. Subelement 9C -- Digital Theory -- 64 questions. Subelement 9D -- GMDSS Equipment and Regulations -- 48 questions. Questions with Diagrams -- 27 questions.

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