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EndsemNov 20252019 patternBE Mech

Energy Audit & Management (EAM) SPPU Endsem Question Paper Nov 2025

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

Open the PDFMost repeated EAM questions
Subject code
402050B
Pattern
2019 pattern
Exam
Endsem
Session
Nov 2025
Max. marks
70
Time
2½ Hours
Semester
VIII
Paper code
[6584]-206

Printed for: B.E. (Mechanical)

Instructions to the candidates

  1. Answer Q.1 or Q.2, Q.3 or Q.4, Q.5 or Q.6, Q.7 or Q.8,
  2. Neat diagrams must be drawn whenever necessary.
  3. Figures to the right indicate full marks.
  4. Assume suitable data, if necessary.

Questions

  1. Q1

    1. a)

      Describe the factors influencing costing of coal, compressed air, natural gas, and electricity.

      Also asked:Nov 2023 ·May 2023

      [9]
    2. b)

      Explain the term -Internal Rate of Return (IRR) with its advantages and disadvantages.

      Also asked:May 2024

      [8]

  2. Q2

    1. a)

      What is the NPV for a project of life 3 years, which requires a capital investment of 60000 and yields 30000 in the first year, 40000 in the second year, and 50000 in the third year, if the interest rate is 7 %?

      [9]
    2. b)

      Explain the ‘Simple Payback Period’ method of financial analysis with its advantages and limitations.

      Also asked:May 2025 ·May 2023

      [8]

  3. Q3

    1. a)

      Calculate pump efficiency from the data given: pump flow is 0.50 m 3 /s, power absorbed: 320 KW, suction head +1.1 m, Delivery head 50 m, motor efficiency 85%,type of drive: direct coupled, density of water 996 kg/m 3 .

      Also asked:Nov 2023 ·May 2023

      [9]
    2. b)

      Describe the energy conservation opportunities in DG sets.

      [9]

  4. Q4

    1. a)

      Enlist the types of steam traps and explain any two with a neat sketch.

      Also asked:May 2025 ·Nov 2023 ·May 2023

      [9]
    2. b)

      What are the energy conservation opportunities in the Refrigeration and HVAC system? 2

      [9]

  5. Q5

    1. a)

      What are the advantages of power factor (PF) improvement in electrical systems? Explain how PF is improved.

      Also asked:May 2023

      [9]
    2. b)

      Discuss essential components of electric tariff and explain the “Two-part tariff’.

      Also asked:May 2025

      [8]

  6. Q6

    1. a)

      What are the types of lamps used in lighting systems? Write down their features with typical applications.

      [9]
    2. b)

      List the types of motors and explain the different losses occurring in electric motors.

      Also asked:May 2023

      [8]

  7. Q7

    1. a)

      Write a short note on Trigeneration and write its advantages.

      [9]
    2. b)

      What is the need of cogeneration? Explain cogeneration in detail with suitable examples.

      [9]

  8. Q8

    1. a)

      Write a note on the shell-tube heat exchanger and plate heat exchanger.

      [9]
    2. b)

      Explain the Waste Heat Recovery (WHR) in the industry and write its direct and indirect benefits. 

      Also asked:May 2025

      [9]