About this previous year paper
This document contains the complete B.Tech (Semester IV) Theory Examination 2024–25 question paper for Electric and Hybrid Vehicles (BOE401). The paper spans two printed pages, carries 70 marks, and comprehensively tests a student’s understanding of automobile fundamentals, EV architecture, hybrid systems, energy storage, EV components, motor drives, safety standards, and startup ecosystem in the EV domain.
Section A – Short Conceptual Questions (14 Marks)
Section A includes seven 2-mark questions assessing clarity of fundamental EV concepts (Page 1):
Definition of automobile chassis
Meaning & classification of hybrid vehicles
Understanding drive system efficiency
Applications of fuel cells
Types of EV chargers available in the market
Energy storage requirements in EVs and hybrid vehicles
Basic function of an EV charger
These questions focus on the core basics required to understand EV systems.
Section B – Medium-Length Analytical Questions (21 Marks)
Students are required to answer any three out of five. These questions measure analytical depth and understanding of EV technology:
Basic Automobile Layout
Explains the layout of a typical four-wheeler including powertrain, chassis, transmission, and accessories.
Advantages & Disadvantages of EVs and Hybrids
Covers technical, social, and environmental viewpoints — including emissions, noise reduction, maintenance, and limitations of charging.
Induction Motor Drives in EVs
How Induction Motors achieve high efficiency through torque characteristics, reliability, and regenerative braking.
Supercapacitor-Based Energy Storage
Construction, working, and use cases of supercapacitors in hybrid vehicles.
Starting an EV Startup
Step-by-step guide for establishing a startup business in the electric vehicle industry — including planning, compliance, infrastructure, and business model.
These questions target real-world understanding and application.
Section C – Long Answer Questions (35 Marks)
Students must attempt one part from each (Q3 to Q7). These require detailed knowledge, diagrams, and strong conceptual clarity (Pages 1–2).
Q3 – Automobile Basics / Assemblies & Sub-assemblies
Definition and layout of a four-wheeler automobile
OR
Major assemblies: chassis, engine, suspension, steering, braking, transmission, and electrical sub-systems
Q4 – Benefits of EVs / EV Components
Advantages of EVs over conventional IC engine vehicles
OR
Construction & working of crucial EV components such as:
Battery pack
Power electronics
Controller
Motor
Regenerative braking system
Q5 – Motor Drives for EVs
DC motor drives configuration and control strategies
OR
Switched Reluctance Motor (SRM) drives — construction, switching logic & control
Q6 – Energy Storage Requirements / Battery-Based Storage Systems
Key energy storage needs for EVs & hybrids: power density, energy density, charging cycle, safety
OR
Structure, working & characteristics of battery-based ESS (Energy Storage Systems)
Q7 – Assembly Process / Safety Precautions
Step-by-step assembly procedure for 2-wheeler EV, including major components
OR
Essential EV safety precautions during operation, servicing, and maintenance
These questions reflect modern EV technologies, safety norms, and engineering practices.
Summary
The Electric and Hybrid Vehicles (BOE401) exam paper thoroughly covers:
Automobile structure and EV architecture
Hybrid vehicle design & working
Motor drives: Induction, DC, SRM
Charging technology & charger types
Fuel cells & energy storage requirements
Supercapacitors & EV batteries
EV startup ecosystem & business setup
Safety standards and EV assembly processes
This exam paper is an essential academic resource for students and EV aspirants, helping them understand both the mechanical and electrical aspects of modern electric vehicle engineering.