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CBT Certified Broadcast Technologist VIP Practice Exam
CBT — The Certified Broadcast Technologist (CBT) is an entry-level certification issued by the Society of Broadcast Engineers (SBE); the exam consists of approximately 100 questions administered over 3 hours with a 70% passing threshold, covering DC/AC electronics, RF fundamentals, audio, video, antennas, FCC regulations, and broadcast safety.
29
Questions
180m
Time Limit
70.00%
To Pass
Question 1 of 29👑 VIP
A broadcast technician measures a parallel RLC circuit at resonance and finds that the circuit draws minimal current from the source despite a large voltage being present. Which of the following best explains this behavior? A) At resonance, inductive and capacitive reactances cancel, resulting in maximum impedance and minimum line current. B) At resonance, resistance drops to zero, so all current is reflected back to the source. C) At resonance, capacitive reactance dominates, causing the circuit to act as a short circuit. D) At resonance, the inductor saturates, blocking all current flow.
Questions 2–29 and full explanations are VIP-exclusive.