(SEM III) THEORY EXAMINATION 2022-23 ENERGY SCIENCE AND ENGINEERING

This question paper is designed to assess the student’s understanding of fundamental and advanced concepts in Energy Science & Engineering, including renewable and non-renewable energy sources, nuclear power, solar energy conversion, geothermal systems, biomass energy, and environmental impacts associated with global energy use.

The paper is divided into three sections to evaluate conceptual clarity, analytical ability, and descriptive skills:

SECTION A (20 Marks – Short Conceptual Questions)

This section contains 10 short-answer questions, each carrying 2 marks.
The questions test the understanding of essential definitions and basic principles such as:

Heat-to-mechanical energy conversion

Entropy and thermodynamic concepts

Nuclear fission and advantages of nuclear energy

Working principle of solar cells

Collector efficiency of solar flat-plate collector

Geothermal and biological energy resources

Energy crisis, conservation, and energy audit

These questions ensure that the student has a strong grasp of basic energy science terminology and concepts.

SECTION B (30 Marks – Descriptive Questions)

Students must attempt any three out of five questions, each of 10 marks.
This section evaluates deeper understanding and explanation ability. Key topics include:

Quantum concept and energy quantization

Nuclear fission reactor design, specifically the Pressurized Water Reactor (PWR)

Classification and construction of solar thermal collectors, especially flat-plate type

Biogas formation from biomass & Deenbandhu biogas plant design

Environmental impacts such as global warming and sustainability issues

This section requires detailed diagrams, explanations, and real-life applicability of the concepts.

SECTION C (50 Marks – Long Answer Questions)

This section contains five main questions with two choices each (10 marks per question).
It assesses analytical, comparative, and application-oriented knowledge.

Topics include:

Comparison of renewable & non-renewable energy sources and their relevance to climate change

Radiation types: direct vs diffuse solar radiation

Nuclear fusion vs fission

Construction and operation of hydrogen-oxygen fuel cell

Solar cell arrays & photoconduction mechanism

Tidal energy systems: single-basin and double-basin types

Biomass gasification process & gas composition

Green energy concept and its advantages

Students must draw diagrams, derive relationships, and explain mechanisms in detail.

FINAL SUMMARY

This examination paper thoroughly evaluates the student's:

Understanding of energy conversion principles

Knowledge of renewable energy technologies

Awareness of environmental implications

Ability to analyze, compare, and apply scientific concepts

The mix of brief and detailed questions ensures balanced assessment of both conceptual clarity and technical depth.