VIP Exclusive
CAT Commercial Audio Technician VIP Certification Exam
CAT — The Commercial Audio Technician (CAT) certification is issued by ETA International (Electronics Technicians Association, International). The exam covers audio fundamentals, system design, installation, signal flow, acoustics, amplifiers, mixers, loudspeakers, and safety. ETA's CAT exam typically consists of approximately 75 multiple-choice questions with a 75% passing threshold.
32
Questions
120m
Time Limit
75.00%
To Pass
Question 1 of 32👑 VIP
A commercial audio installer is troubleshooting a 70-volt distributed speaker system in a large retail store. Several ceiling speakers in one zone have no audio output while the rest of the system works normally. The installer measures 70V at the amplifier output terminals and confirms the wiring runs unbroken to the zone transformer. When measuring at the primary tap of the first affected speaker transformer, the voltage reads 0V. What is the most likely cause?
Questions 2–32 and full explanations are VIP-exclusive.