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Electronic Component Reliability Quiz
RF Cafe Quiz #83

RF Engineering Quizzes - RF Cafe WebsiteAll RF Cafe Quizzes make great fodder for employment interviews for technicians or engineers - particularly those who are fresh out of school or are relatively new to the work world. Come to think of it, they would make equally excellent study material for the same persons who are going to be interviewed for a job. Bonne chance, Viel Glück, がんばろう, buena suerte, удачи, in bocca al lupo, 행운을 빕니다, ádh mór, בהצלחה, lykke til, 祝你好運. Well, you know what I mean: Good luck!

Click here for the complete list of RF Cafe Quizzes.

Note: Some material based on books have quoted passages.

Quiz #83: Electronic Component Reliability - RF Cafe - RF CafeElectronic component reliability is the foundation of every dependable circuit assembly, yet it is often overlooked until a field failure occurs. This quiz covers the dominant failure mechanisms and reliability characteristics of the components that populate real-world boards: resistors, capacitors, inductors, integrated circuits, connectors, power supplies, displays, switches, and knobs. Questions address why certain capacitor types fail short versus open, how derating affects MTBF, what environmental stressors accelerate wear-out, and why connector selection matters more than most engineers realize. You will encounter concepts such as infant mortality, bathtub curves, electrolytic capacitor dry-out, solder joint fatigue, and the reliability implications of part count and thermal management. Whether you are a design engineer, a technician, or a hobbyist building long-life equipment, understanding these fundamentals helps you choose better parts, design more robust circuits, and troubleshoot failures faster. This quiz assumes no prior reliability training, only a practical familiarity with common electronic components and a curiosity about why some assemblies last for decades while others fail in months.  


1. Which passive component type is most likely to fail short rather than open?






2. What is the primary wear-out mechanism in aluminum electrolytic capacitors?






3. Which reliability curve phase is characterized by a decreasing failure rate over time?






4. What is the most common failure mode for multilayer ceramic capacitors (MLCCs) under mechanical stress?






5. Which connector failure mechanism is most accelerated by vibration and thermal cycling?






6. What is the dominant failure mechanism in semiconductor integrated circuits?






7. Which power supply component typically has the shortest service life?






8. What is the primary failure mode for mechanical switches and potentiometers?






9. Which display technology is most susceptible to image burn-in over long operating hours?






10. What derating practice most improves the reliability of film capacitors?






Quizzes from vintage electronics magazines (and many custom RF Cafe-generated quizzes) such as Popular Electronics, Electronics-World, QST, Radio-Electronics, and Radio News were published over the years - some really simple and others not so simple. Robert P. Balin created most of the quizzes for Popular Electronics. This is a listing of all I have posted thus far.

RF Cafe Quizzes

Vintage Electronics Magazine Quizzes

Vintage Electronics Magazine Quizzes
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About the RF Cafe™ Website ©1996-2026

Kirt Blattenberger - RF Cafe WebmasterRF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived...

Webmaster: Kirt Blattenberger  |     BSEE - KB3UON - AMA92498  |  USAF Radar Technician

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