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ISCET Certified Electronics Technician (CET) VIP Practice Exam
ISCET — The ISCET Certified Electronics Technician (CET) exam is administered by the International Society of Certified Electronics Technicians; it consists of 75 questions with a 75-minute time limit and a 75% passing threshold, covering DC/AC theory, semiconductors, digital electronics, and specialty domains such as consumer, industrial, and communications electronics.
31
Questions
90m
Time Limit
75.00%
To Pass
Question 1 of 31👑 VIP
A technician measures 12 V across a series circuit consisting of three resistors: R1 = 100 Ω, R2 = 150 Ω, and R3 = 250 Ω. A fourth resistor Rx is added in series and the total current drops from 24 mA to 18 mA. What is the value of Rx?
Questions 2–31 and full explanations are VIP-exclusive.