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InsemOct 20252019 patternSE Electrical

Analog and Digital Electronics (ADE) SPPU Insem Question Paper Oct 2025

All 4 questions from this SPPU insem paper, as printed. Read them here or open the PDF.

Open the PDFMost repeated ADE questions
Subject code
203143
Pattern
2019 pattern
Exam
Insem
Session
Oct 2025
Max. marks
30
Time
1 Hour
Semester
III
Paper code
[6578]-8

Printed for: S.E. (Electrical) (Insem.)

Instructions to the candidates

  1. Answer Q.1 or Q.2, Q.3 or Q.4.
  2. Figures to the right indicate full marks.
  3. Neat diagram must be drawn wherever necessary.
  4. Make suitable assumptions, if necessary.

Questions

  1. Q1

    1. a)

      State De-Morgan’s Theorem and using Boolean algebra prove the following. AB + CD = . AB CD

      [5]
    2. b)

      With a neat Block diagram explain function of an Encoder and Decoder. Give its applications.

      [5]
    3. c)

      This part has equations that don’t show as text. Open the PDF to read it.

      [5]

  2. Q2

    1. a)

      Explain SOP and POS Form for Four Variable.

      [5]
    2. b)

      Draw and explain full adder.

      [5]
    3. c)

      This part has equations that don’t show as text. Open the PDF to read it.

      [5]

  3. Q3

    1. a)

      What is the difference between combinational circuit and Sequential circuit.

      [5]
    2. b)

      Define Synchronous and Asynchronous Counter and Explain 3-Bit Synchronous UP Counter.

      [5]
    3. c)

      Explain the operation of 4-Bit Serial in Serial out shift register.

      [5]

  4. Q4

    1. a)

      Explain Different type of Shift Register with Applications.

      [5]
    2. b)

      Design a synchronous MOD-6 Counter using T flip-flop.

      [5]
    3. c)

      This part has equations that don’t show as text. Open the PDF to read it.

      [5]