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. How often should euthanasia protocols be reviewed and updated? → Annually at minimum, and whenever new guidelines, regulations, or equipment changes occur
2. Which organ system is primarily targeted by sodium pentobarbital to induce euthanasia? → Central nervous system
3. How can euthanasia technicians protect themselves from inhaling harmful substances during procedures? → By wearing a respirator or mask to prevent inhalation.
4. What does 'power factor correction (PFC)' accomplish in a modern SMPS design? → Makes the input current waveform more sinusoidal to reduce reactive power draw
5. A 10 Ω resistor and a 10 Ω inductive reactance are connected in series. What is the circuit's power factor? → 0.707
6. What is the role of an euthanasia technician in ensuring ethical standards? → Ensuring the method is humane and in accordance with the law.
7. When a conflict arises between standard procedures and a unique situation in Embedded Systems & Programming, what should a CET professional prioritize? → Safety and ethical obligations while seeking expert consultation
8. Which type of semiconductor device is used as the basis of a UJT (Unijunction Transistor) relaxation oscillator? → A device with one p-n junction, one emitter, and two base contacts
9. In SPI, which device generates the clock signal (SCLK)? → The master device exclusively
10. What is the maximum number of devices addressable on a standard I2C bus using 7-bit addressing? → 112
11. Which type of RF connector is most commonly used in precision 50-ohm microwave test equipment up to 18 GHz? → SMA
12. In a Real-Time Operating System (RTOS), what is the primary purpose of a semaphore? → To synchronize access to shared resources or signal events between tasks
13. In power supply design, what does 'line regulation' specify? → Output voltage change with varying AC input voltage
14. What is an example of compassionate care prior to euthanasia? → Ensuring the animal is calm, comfortable, and pain-free before euthanasia.
15. What is the function of the opto-isolator in a typical isolated SMPS feedback loop? → Transfer the error signal from secondary to primary while maintaining galvanic isolation
16. A 50 μF capacitor charges through a 20 kΩ resistor from a 100 V source. Approximately how long does it take to reach 99% of the supply voltage? → 5 s
17. The Safety Data Sheet (SDS) for sodium pentobarbital must be accessible to euthanasia staff: → At all times during each work shift
18. What is the purpose of environmental enrichment for animals awaiting euthanasia in shelter settings? → To reduce stress, improve welfare, and provide comfort during the animal's remaining time
19. Which of the following is a welfare benefit of using intravenous (IV) administration of pentobarbital over intracardiac (IC) injection in animals? → IV produces rapid, painless unconsciousness before cardiac arrest
20. What is the PRIMARY purpose of continuing education requirements in AC Circuit Analysis & Power for CET professionals? → Maintaining current knowledge and competency as the field evolves
21. What is the primary consideration when selecting euthanasia agents for a specific animal species? → Species-specific efficacy, speed of action, and minimal pain or distress
22. Which standard of practice is MOST important for ensuring quality in DC Circuit Analysis & Theory? → Following evidence-based protocols while adapting to specific circumstances
23. Which AVMA-recognized method is classified as acceptable for euthanasia of cats and dogs in a shelter setting? → Intravenous sodium pentobarbital
24. In OFDM (Orthogonal Frequency Division Multiplexing), what property allows subcarriers to overlap without interference? → Subcarriers are mathematically orthogonal to each other
25. The Early effect in a BJT refers to: → Modulation of the effective base width by collector voltage
26. What is the PRIMARY purpose of continuing education requirements in Digital Logic & Microprocessors for CET professionals? → Maintaining current knowledge and competency as the field evolves
27. Which of the following describes the operation of an enhancement-mode NMOS transistor when VGS = 0? → Channel does not exist (OFF)
28. A facility's written euthanasia protocol must be reviewed and updated at minimum: → Annually or whenever significant changes in procedures, personnel, or regulations occur
29. A 100 μF capacitor is connected in series with a 10 kΩ resistor and a 50 V DC source. What is the time constant (τ) of the circuit? → 1 s
30. Which standard of practice is MOST important for ensuring quality in Semiconductor Devices & Circuits? → Following evidence-based protocols while adapting to specific circumstances