Solved question paper for BEE May-2025 (B-TECH 1st-2nd)

Solved Question Paper

Basic Electrical Engineering May-2025

PTU • B-TECH • Mechanical Engineering • 1st-2nd • May-2025

Basic Electrical Engineering previous year question papers on BRpaper are organized for students of Punjab Technical University’s Bachelor of Technology program, 1st-2nd semester. This section makes it easier to browse subject-wise old question papers for Basic Electrical Engineering, so students can review how questions are typically framed in past exams and get a sense of the exam pattern. Many students search for basic electrical engineering with answers pdf while preparing for exams, and this page is built to support exactly that kind of subject-wise browsing and revision. BRpaper is not the official website of Punjab Technical University or any institution, and it does not publish official notices or academic updates.

Solved Questions

Solved
  1. Write short notes on: a) What is the function of a contactor?
    Very Short Answer 2 Marks May-2025 • PTU B-TECH
  2. Write short notes on: b) What is an apparent power? Draw the power triangle.
    Very Short Answer 2 Marks May-2025 • PTU B-TECH
  3. Write short notes on: c) What are the demerits of low power factor to an electric AC system?
    Very Short Answer 2 Marks May-2025 • PTU B-TECH
  4. Write short notes on: d) What are dependent voltage and current sources?
    Very Short Answer 2 Marks May-2025 • PTU B-TECH
  5. Write short notes on: e) Draw the electric circuit schematic of a step down auto-transformer.
    Very Short Answer 2 Marks May-2025 • PTU B-TECH
  6. Write short notes on: f) Distinguish between the active and passive elements.
    Very Short Answer 2 Marks May-2025 • PTU B-TECH
  7. Write short notes on: g) Explain the working principle of a single-phase induction motor.
    Very Short Answer 2 Marks May-2025 • PTU B-TECH
  8. Write short notes on: h) Enlist the types of batteries in electric systems.
    Very Short Answer 2 Marks May-2025 • PTU B-TECH
  9. Write short notes on: i) Draw and explain in brief, the BH curve for a typical magnetic material.
    Very Short Answer 2 Marks May-2025 • PTU B-TECH
  10. Write short notes on: j) Explain the three-phase balanced circuits.
    Very Short Answer 2 Marks May-2025 • PTU B-TECH
  11. Draw and explain the electric circuit schematic of an earth leakage circuit breaker.
    Long Answer 8 Marks May-2025 • PTU B-TECH
  12. State and prove the Superposition theorem. Give example.
    Long Answer 8 Marks May-2025 • PTU B-TECH
  13. Prove that the emf in DC machines is directly proportional to flux per pole and speed. Derive it.
    Long Answer 8 Marks May-2025 • PTU B-TECH
  14. A capacitor has a capacitance of 30 μF. Find its capacitive reactance for frequencies of 25 Hz and 50 Hz. Find in each case the current, if the supply voltage is 440 V.
    Long Answer 8 Marks May-2025 • PTU B-TECH
  15. A choke coil is connected in series with a 200 μF capacitor. With a constant supply voltage of 250 V, it is found that the circuit takes its maximum current of 50 A, when the supply frequency is 100 Hz. Determine : a) Resistance and inductance of the choke coil.
    Long Answer 8 Marks May-2025 • PTU B-TECH
  16. A choke coil is connected in series with a 200 μF capacitor. With a constant supply voltage of 250 V, it is found that the circuit takes its maximum current of 50 A, when the supply frequency is 100 Hz. Determine : b) Voltage across the capacitor.
    Long Answer 8 Marks May-2025 • PTU B-TECH
  17. A choke coil is connected in series with a 200 μF capacitor. With a constant supply voltage of 250 V, it is found that the circuit takes its maximum current of 50 A, when the supply frequency is 100 Hz. Determine : c) Q-factor of the circuit.
    Long Answer 8 Marks May-2025 • PTU B-TECH
  18. What is the purpose of earthing? Explain the procedure for implementing any one type of earthing in a domestic system.
    Long Answer 8 Marks May-2025 • PTU B-TECH
  19. Calculate the value of voltage regulation at 0.8 pf lagging for a transformer with resistance drop 2% and reactance drop of 4% of the voltage. Hence, explain the significance of the voltage regulation. (6, 2)
    Long Answer 8 Marks May-2025 • PTU B-TECH
  20. Determine the current I in the network by using Thevenin's theorem. Use figure below.
    Long Answer 8 Marks May-2025 • PTU B-TECH

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01 Where can I find Basic Electrical Engineering previous year question papers for Bachelor of Technology, 1st-2nd semester?

This page lists Basic Electrical Engineering question papers uploaded for Punjab Technical University Bachelor of Technology, 1st-2nd semester, organized for subject-wise browsing where available.

02 Are these official Punjab Technical University question papers?

BRpaper is not the official website of Punjab Technical University. These papers are shared for reference and revision purposes only and are not official university material.

03 How can previous year Basic Electrical Engineering papers help in exam preparation?

Reviewing past papers can help you understand how questions are typically framed, notice commonly repeated topics, and get a sense of the exam pattern before your own exam.

04 What kind of topics does Basic Electrical Engineering usually cover?

The question papers here relate to the official Basic Electrical Engineering syllabus set by the university for this course and semester.

05 Does this page include a Basic Electrical Engineering with answers pdf or solved answers?

This page focuses on providing access to the previous year question papers themselves. A separate question bank or solved answers may not be available for every paper.

06 Can I find papers for other subjects in the same Bachelor of Technology?

Yes, BRpaper organizes papers by university, course, stream, and semester, so you can browse other subjects within the same Punjab Technical University Bachelor of Technology.