B.TechSemester 32022-23Digital ElectronicsKOE-039
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Digital Electronics (KOE-039) - AKTU Question Paper 2022-23

B.Tech · Semester 3 · Free PDF Download

This is the official AKTU Digital Electronics Previous Year Question Paper for B.Tech Semester 3, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 3
Session:2022-23
University:AKTU / UPTU

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Questions Asked in 2022-23

Digital Electronics (KOE-039) — complete question paper

Section AAttempt all questions in brief. 2 x 10 = 20
  • a
    Explain the signed binary number
  • b
    Define the term universal g ates and their applications
  • c
    Elaborate the term Combinational Circuits
  • d
    Define BCD codes and convert (A5D8)16 into BCD number
  • e
    Explain the term storage elements
  • f
    Illustrate the term sequential logic
  • g
    Define the use of clock in digital circuits
  • h
    Explain the term synchronous circuits. (i) Illustrate the use of logic families in digital circuits. (j) Elaborate the term Fan-in in digital circuits
Section BAttempt any three of the following: 10x3=30
  • a
    Convert the following
  • b
    Design 4:1 multiplexer using gates
  • c
    Elaborate the characteristic equations of S-R and J-K Flip-Flo ps
  • d
    Illustrate the State reduction technique for Digital Circuits
  • e
    Define the TTL (Transistor-Transistor-Logic) logic Family used f o r d i g i t a l circuits
Section CAttempt any one part of the following: 10x1=10
  • a
    Design an XOR gate by using NAND gate implementation
  • b
    Define the De-morgans theorem o f Logic Simplification for SOP & POS forms
  • a
    Design a 4-bit adder circuit using gates
  • b
    Design a 3:8 Decoder circuit using gates
  • a
    Elaborate the working and circuit of a Serial-in-Serial-Out shift register
  • b
    Explain the working and circuit of a modulo-5 counter using gates
  • a
    Illustrate the working and applications of Asynchronous sequential circuits
  • b
    Explain the term, Hazard. Define different types of Hazards alo ng with detection and reduction of Hazards
  • a
    Define the SRAM cell with working and circuit diagram along wit h applications
  • b
    Elaborate the PLA (Programmable Logic Array) along with working a n d applications

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

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