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Basic Electrical Engineering — Major (End Semester) 2026 question paper

MMMUT Mechanical Engineering previous year question paper for Basic Electrical Engineering (BEE-110), semester 1, Major (End Semester) 2026. All 24 questions are listed below, each with a written answer on Nexsus.

Paper details

  • Subject: Basic Electrical Engineering (BEE-110)
  • Branch: Mechanical Engineering
  • Semester: 1
  • Exam: Major (End Semester) 2026
  • Questions: 24

Questions asked in Basic Electrical Engineering Major (End Semester) 2026

  1. Q1 a). State maximum power transfer and prove condition for maximum power transfer. [2 marks]
  2. Q1 b). Derive relation between line voltage and phase voltage in a three phase balanced star system. Also deduce the expression of total power. [2 marks]
  3. Q1 c). A three phase delta connected load consumes a of 120 K W. drawing a lagging current of 200A from a three phase 400V, 50Hz supply. Find a) Parameters or each phase. b) consumed if the loads are connected in star. [2 marks]
  4. Q1 d). Derive the expression for resonance frequencies of series circuit also draw the resonance curve and give the expression for half power frequencies and bandwidth [2 marks]
  5. Q1 e). A scries RLC circuit consists of a resistance of 12ohm, an inductance of 0.2H and a capacitor of 10pF. Find i) Resonant Frequency ii) Q-factor Of the circuit [2 marks]
  6. Q1 f). Define KCL & KVL with suitable example. [2 marks]
  7. Q1 g). State superposition theorem with its limitations. [2 marks]
  8. Q2 a). Explain the construction and working of a moving-iron instrument with a neat diagram. [5 marks]
  9. Q2 b). Name the main types of errors in electrical measuring instruments. A length is measured as Xm=9.85 m. The true length is Xi=10.00m. Find the absolute error relative error and percentage error. [5 marks]
  10. Q2 c). Explain the construction and working Of a dynamometer type instrument with a neat diagram. [5 marks]
  11. Q3 a). Explain the construction & working principle of PMMC instruments. [5 marks]
  12. Q3 b). A moving-coil ammeter has a resistance Of 50ohm and gives full-scale deflection With a current of 10mA. Find the value of shunt resistance required to extend its range to 1A. [5 marks]
  13. Q3 c). Describe the torque equation for an analog instrument and explain the role of (a) Deflecting torque (b) Controlling torque (c) Damping torque [5 marks]
  14. Q4 a). A single phase 100KVA, 3.3K transformer has 89.5% efficiency at 0.85 lagging power factor both at full and half or the full load. Determine the efficiency of the transformer at 75% loads and 0.9 leading power factor. [5 marks]
  15. Q4 b). Give the comparison between electric & magnetic circuit. [5 marks]
  16. Q4 c). Derive the EMF equation of single phase transformer with its equivalent Circuit diagram. [5 marks]
  17. Q5 a). A single phase transformer has 350 primary and 1050 secondary turns. The primary is connected to a 400V,50Hz supply. If the net cross sectional area of the core is 50cm², find i) The maximum value of flux density in the core. ii) The voltage induced in the secondary-winding. [5 marks]
  18. Q5 b). Draw the phasor diagram of single phase transformer at no load condition. [5 marks]
  19. Q5 c). Explain how much copper is saved in an autotransformer compared to an ordinary transformer. [5 marks]
  20. QQ1). Attempt any five parts of the following.
  21. QQ2). Attempt any two parts of the following.
  22. QQ3). Attempt any two parts of the following.
  23. QQ4). Attempt any two parts of the following.
  24. QQ5). Attempt any two parts of the following