CET Cheat Sheet 2026

The 30 highest-yield CET facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. An inverting op-amp amplifier has a feedback resistor Rf = 10 kΩ and input resistor Rin = 2 kΩ. What is the closed-loop voltage gain? → -5
2. What does the slew rate of an op-amp specify? → The maximum rate of change of output voltage in V/µs
3. When calibrating test equipment, a NIST-traceable calibration standard ensures: → Measurements can be traced to national standards for verified accuracy
4. In Reporting Requirements & Standards, what is the FIRST step a CET professional should take when encountering a new case or situation? → Conduct a comprehensive assessment and gather all relevant information
5. What does a Ground Fault Circuit Interrupter (GFCI) outlet protect against? → Electric shock from current leaking to ground through a person
6. What is the purpose of thermal imaging in electronics troubleshooting? → To detect hot spots in circuits and identify faulty components.
7. What is the PRIMARY purpose of continuing education requirements in Cancer Registry Data Collection for CET professionals? → Maintaining current knowledge and competency as the field evolves
8. What tool is commonly used for measuring the voltage in a circuit? → Multimeter
9. Which standard of practice is MOST important for ensuring quality in Cancer Registry Data Collection? → Following evidence-based protocols while adapting to specific circumstances
10. What is the primary advantage of a switching power supply over a linear regulator for the same output power? → Much higher efficiency (often 80–95%) because the switching transistor is either on or off
11. Which BJT amplifier configuration provides both voltage gain and current gain while inverting the output signal? → Common-emitter
12. Which type of voltage regulator dissipates the difference between input and output voltage as heat? → Linear regulator
13. In Cancer Registry Data Collection, what is the FIRST step a CET professional should take when encountering a new case or situation? → Conduct a comprehensive assessment and gather all relevant information
14. Which component in a linear power supply converts the AC mains voltage to a lower AC voltage suitable for rectification? → Power transformer
15. On an oscilloscope, the timebase (horizontal axis) represents: → Time in seconds per division
16. In a class AB push-pull amplifier, what is the main purpose of the bias diodes placed between the two transistor bases? → Provide a small forward bias to eliminate crossover distortion
17. In a buck (step-down) DC-DC converter, what primarily determines the output voltage? → The duty cycle of the switching transistor
18. Which standard of practice is MOST important for ensuring quality in Follow-Up & Survival Analysis? → Following evidence-based protocols while adapting to specific circumstances
19. What is the most common method for testing for continuity in a circuit? → Use a multimeter in continuity mode.
20. What is the unit of measurement for resistance? → Ohms
21. What is the primary purpose of a bypass capacitor placed in parallel with the emitter resistor in an amplifier? → Increase AC voltage gain by shorting the emitter resistor at signal frequencies
22. Which multimeter setting must be selected to accurately measure AC line voltage? → AC voltage (ACV)
23. What is the PRIMARY purpose of continuing education requirements in Follow-Up & Survival Analysis for CET professionals? → Maintaining current knowledge and competency as the field evolves
24. When measuring resistance with a digital multimeter, what must be done before taking a reading? → Disconnect the circuit from its power source
25. What is a logic gate? → A circuit that performs a logical operation on inputs.
26. Which standard of practice is MOST important for ensuring quality in Coding & Classification Systems? → Following evidence-based protocols while adapting to specific circumstances
27. What current level through the human body is generally considered the threshold for causing ventricular fibrillation? → 100 mA
28. What type of distortion occurs when an amplifier output is driven beyond its linear region, flattening the peaks of the output waveform? → Clipping distortion
29. What is the function of a Metal Oxide Varistor (MOV) in a surge protector? → Clamp transient overvoltages by conducting heavily when voltage exceeds a threshold
30. What is a short circuit? → A low-resistance path that allows excess current to flow.