Gujarat Technological UniversitySummer 2025 examination

GTU 3110005 Basic Electrical Engineering (BEE) Summer 2025 Question Paper & PDF

B.E. · Common Engineering · Semesters 1 and 2 · Subject code 3110005
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 10:30 AM – 1:00 PM
Questions
5 with internal choice
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16 of 25 questions on this paper were also asked in other years. 1 more is a type of question GTU sets again with new data. Each is marked below with the years it appeared.See all 39 repeated 3110005 questions, most asked first

Q.1

14 Marks
(a)
3 marks
State Ohm’s law and Kirchhoff’s laws.
(b)
4 marksAsked in 2 of 7 papers
Define power factor. Write the disadvantages of low power factor.

Also asked in Winter 2025 Q3c OR

(c)
7 marksAsked in 3 of 7 papers
Derive the equation of star to delta and delta to star transformation.

Also asked in Summer 2024 Q2c, Winter 2023 Q1c

Q.2

14 Marks
(a)
3 marks
Write the advantages and disadvantages of polyphase systems.
(b)
4 marks
Define: (i) Form factor (ii) Peak factor (iii) Frequency and (iv) Cycle.
(c)
7 marksAsked in 3 of 7 papers
State and explain Thevenin’s theorem with suitable example.

Also asked in Winter 2024 Q1c, Winter 2023 Q1b

(c)
7 marksAsked in 2 of 7 papers

A 100 V, 100-Watt lamp is connected in series with a 100 V, 60-watt lamp across 200 V supply. Determine current drawn and power consumed by each lamp.

Also asked in Winter 2025 Q2a

Q.3

14 Marks
(a)
3 marksAsked in 2 of 7 papers
Define: (i) Active power (ii) Reactive power and (iii) apparent power in ac circuits.

Also asked in Winter 2023 Q3a

(b)
4 marksAsked in 2 of 7 papers

Explain the comparison between series resonance and parallel resonance condition in ac circuits.

Also asked in Winter 2024 Q3b OR

(c)
7 marksAsked in 3 of 7 papers

Prove that current in purely inductive circuit lags its voltage by 90 degree and average power consumption in pure inductive circuit is zero.

Also asked in Summer 2024 Q3c, Winter 2023 Q2c OR

(a)
3 marks
Define and explain RMS value and average value in ac circuits.
(b)
4 marks

Derive an expression for impedance, current and power factor for an R-L-C series circuit when supplied with ac voltage. Also draw the phasor diagram.

(c)
7 marksAsked in 2 of 7 papers

Derive the relationship between line voltage and phase voltage, line current and phase current in a 3-phase balanced star connected circuit

Also asked in Summer 2024 Q3c OR

Q.4

14 Marks
(a)
3 marksAsked in 2 of 7 papers
Define transformer. Write the main parts of transformer.

Also asked in Summer 2026 Q2b

(b)
4 marks
Compare auto transformer with two winding transformers.
(c)
7 marksAsked in 2 of 7 papers
Explain various connections of 3-phase transformers with necessary diagrams.

Also asked in Winter 2023 Q4c

(a)
3 marksAsked in 2 of 7 papers
Write the advantages and disadvantages of auto transformer.

Also asked in Summer 2023 Q4b OR

(b)
4 marks
Write the types of 1-phase induction motors. Explain any one of them.
(c)
7 marksAsked in 5 of 7 papers
Explain construction and working of synchronous generator with necessary diagram.

Also asked in Winter 2024 Q4c OR, Summer 2024 Q4c OR, Winter 2023 Q4c OR, Summer 2023 Q5c OR

Q.5

14 Marks
(a)
3 marksAsked in 3 of 7 papers
Compare squirrel cage induction motor with slip ring induction motor.

Also asked in Winter 2024 Q4b, Winter 2023 Q4a OR

(b)
4 marksAsked in 3 of 7 papers
Explain the types of dc motors with diagrams.

Also asked in Summer 2024 Q4a OR, Winter 2023 Q3b OR

(c)
7 marksAsked in 5 of 7 papers
Define earthing. Explain plate earthing with diagram.

Also asked in Summer 2026 Q3a, Winter 2025 Q5c OR, Winter 2024 Q5c OR, Winter 2023 Q5c OR

(a)
3 marksAsked in 2 of 7 papers
Give a list of safety devices used for home appliances.

Also asked in Summer 2024 Q5a

(b)
4 marks
Write the comparison of Fuse, MCB and ELCB.
(c)
7 marksSame type asked in 3 of 7 papers

A series R-L-C circuit having a resistance of 8 Ω, inductance of 80 mH and capacitance of 100 μF is connected across a 150 Volt, 50 Hz supply. Calculate (i) the current (ii) the power factor and (iii) the voltage drops in the coil and capacitance.

Also asked in Winter 2025 Q3a OR, Summer 2024 Q2a

More Basic Electrical Engineering papers

Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.

Summer 202670 marks · 5 questions · Solved
Winter 202570 marks · 5 questions · Solved
Winter 202470 marks · 5 questions
Summer 202470 marks · 5 questions

Other Semester 1 subjects

BE Common

3110001
Chemistry
3110002
English
3110003
Programming for Problem Solving
3110004
Basic Civil Engineering

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About this paper

Official Gujarat Technological University (GTU) examination paper for Basic Electrical Engineering (BEE) (Summer 2025, B.E. · Common Engineering, Sem 1). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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