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EndsemNov 20242019 patternBE Electrical

PLC & SCADA SPPU Endsem Question Paper Nov 2024

All 8 questions from this SPPU endsem paper, as printed. Read them here or open the PDF.

Open the PDFMost repeated PLC & SCADA questions
Subject code
403143A
Pattern
2019 pattern
Exam
Endsem
Session
Nov 2024
Max. marks
70
Time
2½ Hours
Semester
VII
Paper code
[6354]-510

Printed for: B.E. (Electrical Engineering)

Instructions to the candidates

  1. Solve Q1 or Q2, Q3 or Q4, Q5 or Q6, Q7 or Q8.
  2. Figures to the right indicate full marks.
  3. Neat diagrams must be drawn wherever necessary.
  4. Assume suitable additional data, if necessary.
  5. Use of non-programmable calculator is allowed.

Questions

  1. Q1

    1. a)

      Draw ladder diagram for following logic gates; i) EXOR Gate ii) EXNOR Gate

      [4]
    2. b)

      Explain Off Delay timer (Toff) in detail along with its status bits operation, working, diagram and timing diagram.

      [6]
    3. c)

      Draw and explain the ladder diagram for bottle filling plant.

      Also asked:May 2023

      [8]

  2. Q2

    1. a)

      Explain latching (OTL) and unlatching (OTU) instruction in detail with the example.

      Also asked:May 2025

      [4]
    2. b)

      Write the rules that needs to be followed while drawing the ladder diagram?

      [6]
    3. c)

      Draw and explain the ladder diagram for car parking.

      Also asked:May 2025

      [8]

  3. Q3

    1. a)

      Write the role of PID controller in automation.

      [3]
    2. b)

      Explain analog PLC operation and PLC analog signal processing in detail.

      [6]
    3. c)

      Explain tank level controller using analog signals.

      [8]

  4. Q4

    1. a)

      Define following terms: i) Setpoint (SP) ii) Process Variable (PV) iii) Controller Output (CO)

      [3]
    2. b)

      Write a short note on Variable Frequency Drive (VFD).

      [6]
    3. c)

      Explain the temperature control using PLC with the help of block diagram. 2

      Also asked:May 2025 ·Nov 2022

      [8]

  5. Q5

    1. a)

      Write the desirable properties of SCADA.

      Also asked:Nov 2025 ·May 2025 ·May 2023

      [4]
    2. b)

      Draw the block diagram of SCADA and explain in detail.

      [6]
    3. c)

      Write a short note on “Automatic Substation Control.”

      Also asked:Nov 2025 ·May 2025 ·Nov 2023 ·May 2023 ·Nov 2022

      [8]

  6. Q6

    1. a)

      Define the terms: i) SCADA ii) HMI iii) MTU iv) RTU

      [4]
    2. b)

      Write advantages and disadvantages of SCADA system. Write any two applications of SCADA System.

      Also asked:Nov 2025 ·May 2025 ·Nov 2023

      [6]
    3. c)

      Explain SCADA generations in detail with block diagram.

      [8]

  7. Q7

    1. a)

      Write any three applications of DCS.

      [3]
    2. b)

      Differentiate between DCS and PLC.

      [6]
    3. c)

      Explain Open System Interconnection (OSI) model in detail.

      Also asked:May 2025 ·Nov 2022

      [8]

  8. Q8

    1. a)

      Write any three applications of SCADA systems.

      [3]
    2. b)

      Write a short note on Flexible Function Block (FFB).

      [6]
    3. c)

      Explain DNP3 protocol of SCADA. 

      [8]