EE PYQ 2023-24 AKTU (BEE101) Question Paper

AKTU · BTECH · Semester 1, 2 · Fundamentals of Electrical Engineering · Session 2023-24 · PYQ

AKTU Fundamentals of Electrical Engineering (BEE101) previous year question paper 2023-24 for B.Tech Semester 1/2. Covers DC Circuits, Steady State Analysis…

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Fundamentals of Electrical Engineering AKTU syllabus

  1. Unit 1: DC Circuits
  2. Unit 2: Steady State Analysis of Single Phase AC Circuits
  3. Unit 3: Transformers
  4. Unit 4: Electrical Machines
  5. Unit 5: Electrical Installations

Questions in Fundamentals of Electrical Engineering AKTU PYQ 2023-24

  1. Q1a. Differentiate between ideal voltage source and practical voltage source. (2 marks, 2023-24)
  2. Q1b. Describe briefly the following elements with examples: (i) Unilateral and Bilateral elements. (ii) Active and Passive elements. (2 marks, 2023-24)
  3. Q1c. Derive that the average power consumed by a pure inductor is zero. (2 marks, 2023-24)
  4. Q1d. In a series RLC circuit, R=2Ω, L=2mH, C=10µF. Find the resonant frequency and Q-factor. (2 marks, 2023-24)
  5. Q1e. Find the inductance of a coil in which a current of 0.2A increasing at a rate of 0.4 A/sec represents a power flow of 0.4 watt. (2 marks, 2023-24)
  6. Q1f. What is the function of slip rings in 3-ϕ induction motor? (2 marks, 2023-24)
  7. Q1g. What are the common problems that occur during electrical installations? (2 marks, 2023-24)
  8. Q2a. Calculate the current across 20Ω resistor using nodal analysis in the following circuit. (20V source with 5Ω, 10Ω and 20Ω resistors, 4A current source) (7 marks, 2023-24)
  9. Q2b. Calculate the form factor and peak factor for a half-wave rectified voltage signal. (7 marks, 2023-24)
  10. Q2c. A 100 kVA, 1-ϕ transformer has iron loss of 600 W and a copper loss of 1.5 kW at full-load current. Calculate the efficiency at (i) full load and 0.8 pf (lagging), and (ii) half load and unity pf? (7 marks, 2023-24)
  11. Q2d. Describe the working principle and torque-slip characteristics of 3-ϕ induction motor. (7 marks, 2023-24)
  12. Q2e. Discuss briefly the types of batteries and explain any one type of secondary battery with the necessary diagram. (7 marks, 2023-24)
  13. Q3a. Calculate the current across 6Ω resistor in the following circuit using: (i) Mesh Analysis (ii) Nodal Analysis. (Bridge circuit with 1Ω, 3Ω, 6Ω, 2Ω, 4Ω resistors and 18V, 12V sources) (7 marks, 2023-24)
  14. Q3b. Explain the procedure of mesh analysis with the help of an example. (7 marks, 2023-24)
  15. Q4a. Derive an expression of bandwidth, upper and lower half power frequency of a series resonating circuit. (7 marks, 2023-24)
  16. Q4b. Derive the relation between line and phase voltages in a 3-ϕ, star-connected circuit. A balanced star-connected load of (3+j4) Ω/phase is connected to a 3-ϕ, 400 V supply. Calculate the line current, power factor, active and reactive power drawn from the supply. (7 marks, 2023-24)
  17. Q5a. A 20 kVA, 2000V/200V, 1-ϕ, 50 Hz transformer has a primary resistance of 1.5 Ω and reactance of 2 Ω. The secondary resistance and reactance are 0.015 Ω and 0.02 Ω respectively. The no-load current of transformer is 1A at 0.2 power factor. Determine: (i) Equivalent resistance and reactance referred… (7 marks, 2023-24)
  18. Q5b. Draw the phasor diagram of ideal and practical transformer at no-load conditions. (7 marks, 2023-24)
  19. Q6a. Derive the expression of torque for DC motor. A 6 pole lap wound DC shunt motor has 500 conductors in the armature. The resistance of the armature path is 0.05 Ω. The resistance of the shunt field is 25 Ω. Find the speed of the motor when it takes 120 A from DC mains of 100 V. Flux per pole is… (7 marks, 2023-24)
  20. Q6b. Why 1-ϕ induction motor is not self-starting? What are the methods of starting? Explain any one of them. (7 marks, 2023-24)
  21. Q7a. Explain the following with neat and labelled diagram: (i) Earth Leakage Circuit Breaker (ii) Miniature Circuit Breaker (7 marks, 2023-24)
  22. Q7b. What is the difference between earthing and grounding? Also discuss the different methods of earthing? (7 marks, 2023-24)

AKTU paper codes: BEE101, BEE201, KEE101, KEE201

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