(SEM-I) THEORY EXAMINATION 2019-20 BASIC ELECTRICAL ENGG.

B.Tech 1st Semester question paper for Basic Electrical Engineering (KEE101). It is structured as a complete 100-mark, 3-hour examination, following the exact pattern used by AKTU: Section A, Section B, and Section C.
This question paper tests a student’s foundation in DC circuits, AC circuits, magnetic circuits, transformers, DC machines, 3-phase systems, batteries, electrical safety, and induction motors.

It is extremely useful for first-year engineering students preparing for semester exams, internal assessments, and practical viva, as it includes both numerical and theoretical questions covering every important chapter from the KEE101 syllabus.

Detailed Breakdown of the Question Paper

SECTION A – Short Answer Questions (10 × 2 = 20 Marks)

This section contains 10 very short questions to quickly test conceptual understanding. Topics include:

Unilateral vs bilateral elements

Superposition theorem

Form factor of AC current

Dynamic impedance

MMF & reluctance relationship

Voltage regulation of transformer

Role of commutator

Synchronous speed formula (f & P)

Full forms: MCB, MCCB, ELCB, SFU

Factors affecting battery capacity

These questions help students revise definitions and fundamental concepts.

SECTION B – Medium-Length Questions (3 × 10 = 30 Marks)

Attempt any three. This section includes both numericals and conceptual explanations:

Thevenin's theorem–based current calculation

Instantaneous voltage sum & difference derivation

Classification of magnetic materials

Torque expression of DC motor + applications

Ampere-hour & watt-hour efficiency of battery charging/discharging

These questions strengthen students’ skills in circuit analysis, electric machines, and energy systems.

SECTION C – Long, High-Weightage Questions (5 × 10 = 50 Marks)

Each question has two parts; attempt one part from each.

Q3 – Network Theorems / Star-Delta

Superposition theorem to find current in 2Ω
OR

Star–Delta & Delta–Star transformation derivation + conditions

Q4 – AC Circuits & Resonance

Resonant frequency derivation for series RLC
OR

Bandwidth, half-power frequencies, quality factor (Q)

Q5 – 3-Phase Systems

Relationship between line & phase voltage/current in star connection
OR

Delta load calculation (line current, pf, power for a (12+j9)Ω load)

Q6 – Transformers / Machines

No-load and full-load phasor diagram of single-phase transformer
OR

Auto-transformer + transformer efficiency at full & half load

Q7 – Induction Motors / Earthing

Difference between neutral and earthing
OR

Starting methods of single-phase induction motors + Why synchronous motor is not self-starting

These questions prepare students for long derivations, phasor diagrams, and machine characteristics.

Why This Question Set Is Valuable for Students

This question paper is extremely helpful because it:

Follows the authentic AKTU question pattern used in actual exams

Covers all major topics of Basic Electrical Engineering

Includes conceptual theory + numericals + phasor diagrams

Helps in last-minute revision before semester exams

Teaches analysis of AC/DC circuits, 3-phase systems, and machines

Covers repeated and expected questions appearing in previous years

Strengthens understanding of practical electrical engineering concepts

Perfect for AKTU B.Tech 1st-year students of CSE, IT, ECE, ME, EE, EN, EI, and all branches that study electrical engineering basics.

Perfect For:

SuGanta Store question paper listing

Students preparing for sessional/semester exams

Teachers designing test papers, viva questions & assignments

Quick concept revision of KEE101

Self-study & practice