Skip to content

Basic Electronics Engineering (BXE) important questionsMost repeated in SPPU papers

These 57 questions appeared in more than one SPPU Basic Electronics Engineering paper we have: 16 papers, from May 2022 to Mar 2026. The most-asked come first. Each one links to the papers it was asked in.

All BXE papers and notes

Repeated questions

Endsem questions (44)

  1. 8×asked

    Draw the block diagram of Function Generator. Explain the function of each block.

    Feb 2026 ·Nov 2025 ·May 2025 ·Nov 2024 ·Nov 2024 ·Nov 2023 ·May 2023 ·May 2022

  2. 8×asked

    State and Prove De-Morgan's Theorem.

    Feb 2026 ·Nov 2025 ·May 2025 ·Apr 2025 ·Nov 2024 ·Nov 2024 ·Nov 2023 ·May 2023

  3. 7×asked

    Describe the Basic block diagram of Communication System.

    Feb 2026 ·Nov 2025 ·May 2025 ·Apr 2025 ·Nov 2024 ·May 2023 ·May 2022

  4. 6×asked

    Give detail comparison of Active Sensors and Passive Sensors.

    Feb 2026 ·Nov 2025 ·Nov 2024 ·Nov 2024 ·Nov 2023 ·May 2023

  5. 6×asked

    Explain Digital Multimeter with block diagram.

    May 2025 ·Apr 2025 ·Nov 2024 ·Nov 2024 ·May 2023 ·May 2022

  6. 5×asked

    Draw circuit diagram and explain operation of half Wave Rectifier with the help of neat waveforms?

    Feb 2026 ·Apr 2025 ·Nov 2024 ·Mar 2024 ·Oct 2023

  7. 5×asked

    Draw the Functional block diagram of operational amplifier and explain in detail.

    Feb 2026 ·Apr 2025 ·Nov 2024 ·Mar 2024 ·Oct 2022

  8. 5×asked

    Draw & explain IEEE electromagnetic frequency spectrum & state allotment of frequency bands for different applications.

    Nov 2025 ·May 2025 ·Nov 2023 ·May 2023 ·May 2022

  9. 5×asked

    Draw construction of LVDT & explain its operation with advantages, disadvantages, applications.

    Nov 2025 ·May 2025 ·Nov 2023 ·May 2023 ·May 2022

  10. 5×asked

    Explain different types used in cables, used in electronic communication.

    Nov 2025 ·Nov 2024 ·Nov 2023 ·May 2023 ·May 2022

  11. 5×asked

    Explain RTD with its Construction, Working advantages, Disadvantage, applications.

    Nov 2025 ·May 2025 ·Nov 2023 ·May 2023 ·May 2022

  12. 5×asked

    Explain working of Auto transformer. List its Applications.

    Nov 2025 ·May 2025 ·Nov 2024 ·May 2023 ·May 2022

  13. 5×asked

    Explain working principle of strain gauge. Explain load cell.

    Nov 2025 ·May 2025 ·Nov 2023 ·May 2023 ·May 2022

  14. 4×asked

    Explain Digital Storage Oscilloscope with block diagram.

    May 2025 ·Apr 2025 ·Nov 2024 ·May 2022

  15. 3×asked

    Describe the Block diagram of IoT based Data Acquisition and Automation System. ♦♦♦ SPPU QUESTION PAPER www.mysppu.in Page 2 MySPPU · Basic Electronics Engineering Page 2 of 2

    Feb 2026 ·Apr 2025 ·Nov 2024

  16. 3×asked

    Draw the block diagram of Digital Multi-meter. Explain the function of each block.

    Feb 2026 ·Nov 2025 ·Nov 2023

  17. 3×asked

    Draw the block diagram of Microprocessor and explain the functions of each block in detail.

    Feb 2026 ·Nov 2024 ·May 2023

  18. 3×asked

    Draw the V-I Characteristics of BJT in common emitter configuration and explain in detail?

    Feb 2026 ·Nov 2024 ·Sep 2024

  19. 3×asked

    What is N-Well method of VLSI CMOS manufacturing, Explain in detail.

    Feb 2026 ·Apr 2025 ·Nov 2024

  20. 3×asked

    Draw & Explain block diagram of AM transmitter?( High power) 

    Nov 2025 ·May 2025 ·Nov 2024

  21. 3×asked

    Draw & Explain block diagram of FM transmitter.

    Nov 2025 ·May 2023 ·May 2022

  22. 3×asked

    Explain operation of Bio-Sensor with one application.

    Nov 2025 ·May 2025 ·May 2022

  23. 3×asked

    Explain cellular communication system. 

    May 2025 ·Nov 2024 ·May 2023

  24. 3×asked

    Explain how to convert Galvanometer to Analog Ammeter and how to use it as multi-range Ammeter?

    May 2025 ·Nov 2023 ·May 2023

  25. 3×asked

    Draw and Explain V-I Characteristics of PN junction Diode.

    Apr 2025 ·Nov 2024 ·Sep 2024

  26. 3×asked

    Explain Biosensor with one application.

    Nov 2024 ·Nov 2023 ·May 2023

  27. 2×asked

    Classify the different types of Logic Gates? Draw and explain any two Logic gates with its truth table & logic equation.

    Feb 2026 ·Nov 2024

  28. 2×asked

    Draw the block diagram of Regulated DC power supply and explain in detail.

    Feb 2026 ·Nov 2023

  29. 2×asked

    Provide a table of Electromagnetic Frequency spectrum with their applications.

    Feb 2026 ·Nov 2024

  30. 2×asked

    What is the different Selection criteria used while selecting the sensors for particular application?

    Feb 2026 ·Nov 2024

  31. 2×asked

    Explain operation of DC Ammeter with suitable diagram. Explain circuit of multi-range Ammeter.

    Nov 2025 ·May 2022

  32. 2×asked

    What are the different types of transducers. Give one example of each type.

    Nov 2025 ·May 2022

  33. 2×asked

    With the help of Truth Table explain operation of AND,OR, EX-OR gates.

    Nov 2025 ·May 2023

  34. 2×asked

    Define Universal Logic Gates. Why they known as Universal Logic Gates?

    May 2025 ·May 2023

  35. 2×asked

    Explain need of modulation. What are the different techniques of modulation.

    May 2025 ·Nov 2024

  36. 2×asked

    Explain selection criteria of transducers.

    May 2025 ·May 2023

  37. 2×asked

    Define with typical & ideal values for IC 741, the following Operational amplifier (OP-AMP) parameters? i) CMRR ii) Bandwidth

    Apr 2025 ·Mar 2024

  38. 2×asked

    Draw & Explain block diagram of IoT based Data Acquisition System.

    Apr 2025 ·Nov 2024

  39. 2×asked

    Explain the principle of operation, construction and working of LVDT.

    Apr 2025 ·Nov 2024

  40. 2×asked

    Explain with a circuit diagram a Single Stage Common Emitter Amplifier.

    Apr 2025 ·Oct 2022

  41. 2×asked

    Draw block diagram of power scope and explain it's operation.

    Nov 2024 ·May 2023

  42. 2×asked

    Explain selection criteria for sensor.

    Nov 2024 ·Nov 2023

  43. 2×asked

    Why NAND and NOR are known as universal logic gates?

    Nov 2024 ·May 2022

  44. 2×asked

    Draw and Explain full adder using two half adders with a Truth Table and give its sum and carry equation.

    Nov 2023 ·May 2023

Insem questions (13)

  1. 10×asked

    Explain construction of N channel E MOSFET with suitable diagram and draw its symbol.

    Mar 2026 ·Feb 2026 ·Oct 2025 ·Apr 2025 ·Mar 2025 ·Nov 2024 ·Sep 2024 ·Mar 2024 ·Oct 2023 ·Oct 2022

  2. 8×asked

    Differentiate between Active & Passive components.

    Mar 2026 ·Feb 2026 ·Oct 2025 ·Apr 2025 ·Mar 2025 ·Nov 2024 ·Mar 2024 ·Oct 2023

  3. 7×asked

    Recognize the Impact of Electronics on industry and society?

    Feb 2026 ·Oct 2025 ·Apr 2025 ·Nov 2024 ·Mar 2024 ·Oct 2023 ·Oct 2022

  4. 4×asked

    Explain how Zener diode can be used as a Voltage Regulator?

    Oct 2025 ·Sep 2024 ·Mar 2024 ·Oct 2022

  5. 3×asked

    For full wave bridge rectifier applied input voltage is 4sin  t. Calculate average output voltage, RMS voltage & PIV rating of the diode used.

    Mar 2026 ·Mar 2025 ·Sep 2024

  6. 3×asked

    Draw V- I characteristics of P-N Junction Diode and define these parameters. i) Cut-in Voltage ii) Reverse saturation current iii) Reverse Breakdown Voltage

    Feb 2026 ·Mar 2024 ·Oct 2022

  7. 2×asked

    Draw the circuit diagram of : i) Non-inverting amplifier and write the expression for Vo. ii) Voltage follower and write the expression for Vo.

    Mar 2026 ·Mar 2025

  8. 2×asked

    Draw the circuit diagram of BJT as switch and explain its operation in detail.

    Mar 2026 ·Oct 2025

  9. 2×asked

    Draw the circuit diagram of CE amplifier and explain the function of each component.

    Mar 2026 ·Mar 2024

  10. 2×asked

    Draw the circuit diagram of center tap rectifier and explain its operation with suitable waveforms. PP.T.O. 2 APR-26/FE/Insem-5

    Mar 2026 ·Mar 2025

  11. 2×asked

    For N Channel E MOSFET i) Draw the drain characteristics and mark the various operating regions. ii) Draw the transfer characteristics and define threshold voltage V th .

    Mar 2026 ·Mar 2025

  12. 2×asked

    Draw & explain Full Wave Rectifier?

    Oct 2025 ·Oct 2023

  13. 2×asked

    Explain drift current & diffusion current in semiconductor.

    Mar 2025 ·Mar 2024

Questions count as repeated when their wording matches closely across papers. Numericals that depend on a figure are left out, since the figure changes from paper to paper.