(SEM IV) THEORY EXAMINATION 2024-25 ELECTRIC AND HYBRID VEHICLES

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.