Karnataka 2nd PUC Model Question Paper 2027 for Electronics And Hardware (Paper 2)

FOR KARNATAKA CLASS 12 PREPARATION

Karnataka 2nd PUC
Model Question Paper
2027 for Electronics
And Hardware (Paper 2)
EXAM YEAR TYPE SUBJECT
Karnataka Class 12 2027 Sample Paper Electronics and Hardware

Notes · Sample Papers · Previous Year Papers · Mock Tests

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a GOVERNAMENT OF KARNATAKA KARNATAKA
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SCHOOL
EXAMINATION AND ASSESSMENT BOARD 2026-27
MODEL QUESTION PAPER -2
II PUC (LEVEL-4)
Subject:Electronicsand hardware Total number ofquestions :37 subjectcode:59
Time: 2:15 hours Max marks :60

PART-A
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I. Choose the correct answer 10X1=10

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1. Inverter used in which type of Solar system
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A) On Grid system
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B) Hybrid System C) Off-Grid System
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D) All of the above
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2. In a series connection
A) Same B) Different C) Zero D) Slightly increases

3. The recommended minimum tilt angle for a solar panel to allow self-cleansing by rain is
A) 5 degrees B) 10 degrees C) 15 degrees D) 90 degrees

4. Which of these sentences is punctuated correctly?
A) Where are you going. B) I have a pen a notebook and a pencil. C) I am so happy to see you! D) This is my house.
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5. The open-circuit voltage (Voc) is measured when .co
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A) Resistance = 0 B) Resistance = ∞
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C) Voltage = 0

6. )What is the main determinant of payback period? g l a
A) Panel size B) Power consumption a C) Installation cost D) Brand name

7. Which component is optional for grid-tied system?
A) Panels B) Inverter C) Batteries D) Controller

8. When performing a shade analysis during a site survey, the critical time frame to ensure maximum sunlight capture is
A) Sunrise to Sunset B) 12:00 PM to 2:00 PM C) 9:00 AM to 3:00 PM D) 11:00 AM to 1:00 PM

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9. The Thermal Energy Storage (TES) in a solar cold storage unit operates on the principle of
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A) Converting electrical energy directly into light energy
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B) Storing energy in the form of latent heat during a phase change (e.g., water to ice)

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C) Using the thermoelectric effect to create a voltage difference
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10. Subsidy calculation primarily depends on
A) system size B) panel brand C) installation date D) location only

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PART –B

II Answer the following question (Answer only TEN ) 10X2=20
11. List the importance ofpositivethinking.
12. What is ON GRIDE system?
13. What do you understand by interpersonal skills? Share an example where you displayed interpersonal skills.
14. Why do we tilt solar panels?
15. How does inverter work in solar PV system ?
16. What is operating current?
17. What are the key safety precautions to take while cleaning solar panels on a rooftop?
18. Write two precautions to be taken while testing an inverter.
19. Mention two points to check during array maintenance.
20. What is gross metering?
21. What is the advantage of grid-tied solar systems?
22. What is the main advantage of a Dish-Type Solar Cooker over a Box-Type Solar Cooker?
23. Why are flexible solar panels ideal for portable applications?

PART –C

III. Answer the following question (Answer only SIX ) 6X3=18
24. Differentiate between theprimary functionof asolarpanelandtheprimary function of a Thermal Energy Storage(TES)
unit in a solar cold storage system.
25. What is self awareness ?and how to manage it.
26. Why is the tilt angle of solar panels important?
27. Draw flow chart of a hybrid solar system
28. List the main components of the solar PV system.
29. Describe the working principle of automatic solar panel cleaning technology.
30. Explain importance of subsidies.
31. Analyze factors impacting installation cost.
32. Describe the energy transfer and conversion pathway in a solar-powered bulk milk chiller from the moment sunlight hits
the panels to the point where milk is cooled.
33. Explain the thermodynamic principle that allows a solar dryer to dehydrate food. Your answer should include the
relationship between air temperature, humidity, and water absorption capacity.

PART – D

IV.Answer the following question (Answer only TWO ) 2X6=12
34. Describe the step-by-stepprocedure fortheconstructionofthefoundation and installation of a ground-mountedsolar
panel array
35. Explain the steps and precautions for inverter testingusing measuring instruments.
36. List the business opportunities solar PV system
37. Explain the working of a solar-powered cold storage system. How does it provide cooling during the night?

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