AKTU Fundamentals of Electronics Engineering (AEC101B/AEC201B) Question Bank with Solutions – B.Tech 1st Year

This UQuest question bank has been prepared strictly as per the AKTU (Dr. APJ Abdul Kalam Technical University, Lucknow) First Year B.Tech syllabus for the course AEC101B / AEC201B — Fundamentals of Electronics Engineering, an Engineering Science Course (ESC) applicable to the CE, ME, TX and CH streams across Semester I and II. This stream-specific variant of the subject deliberately avoids deep semiconductor physics and instead builds the ability to read circuit blocks, understand sensor datasheets, and work with industrial automation electronics — every topic is directly linked to a mechanical, civil, chemical or textile engineering application. Every unit below is covered with three categories of practice questions, each with complete, concise, exam-ready solutions — including worked numerical and design-style problems where the syllabus calls for analysis and design — to help students revise concepts and prepare thoroughly for the semester end examination.

Question Pattern Followed Per Unit

• Section A: 15 Multiple Choice / True-False Questions — with correct answer and explanation.
• Section B: 12 Short Answer Type Questions — with concise, exam-ready answers.
• Section C: 12 Long Answer Type Questions — with structured explanations, illustrative examples, and diagrams.
• ★ Most Important and ★ Important tags mark questions with the highest probability of appearing in the AKTU semester examination, based on topic weightage and repetition trends — prioritize these while revising.

This subject builds a working, applications-first understanding of industrial electronics across five units: diodes, rectifiers and regulated power supplies (p-n junction basics, half-wave and full-wave bridge rectifiers, Zener voltage regulators, LEDs and photodiodes, used for control-panel/PLC power supplies and photoelectric sensors), transistors and switching circuits (BJT and MOSFET switching, relay drivers, PWM motor speed control, optocouplers and solid-state relays for isolation), sensors, transducers and signal conditioning (temperature, pressure, displacement and proximity sensors, the Wheatstone bridge, op-amp amplifier/comparator stages, and 4-20mA/0-10V industrial signalling), digital basics and microcontroller overview.