CY3151 Engineering Chemistry Previous Year Question Papers - Anna University

UNIT 1 – Water & Treatment

• Explain boiler corrosion and its control methods.
• Describe the reverse osmosis process with diagram and applications.
• Explain demineralization of water using ion exchange method.
• Discuss internal conditioning of water (phosphate, calgon, etc.).
• Compare external vs internal water treatment methods.
• Explain causes and prevention of scale and sludge formation.

UNIT 2 – Nanomaterials & Surface Techniques

• Explain electrodeposition process with factors affecting coating.
• Describe chemical vapour deposition (CVD) and its applications.
• Explain laser ablation method for nanomaterial synthesis.
• Discuss size-dependent properties of nanomaterials.
• Explain structure, properties and applications of Carbon Nanotubes (CNTs).
• Compare top-down and bottom-up approaches.

UNIT 3 – Phase Rule & Materials

• Explain Pattinson's process with neat diagram.
• State and explain Gibbs phase rule with reduced phase rule.
• Describe water system phase diagram.
• Explain one-component system and its applications.
• Discuss matrix materials and their classifications.
• Compare metal matrix, ceramic matrix and polymer matrix materials.

UNIT 4 – Fuels & Combustion

• Explain Orsat method for flue gas analysis.
• Describe Otto Hoffmann by-product coke oven process.
• Explain combustion of fuels and calculation of air requirement.
• Discuss composition and analysis of flue gases.
• Explain Bergius process for synthetic fuel production.
• Compare bio-diesel and conventional diesel.

UNIT 5 – Energy Sources & Storage

• Explain construction and working of a nuclear reactor (breeder reactor).
• Describe working of lead-acid battery with reactions.
• Explain solar cell and fuel cell with applications.
• Compare primary and secondary batteries.
• Discuss advantages and limitations of fuel cells.
• Explain lithium-ion battery and its applications.

PART C (Case Study / Long Problem)

• Water treatment plant design or analysis
• Fuel efficiency / combustion calculation problem
• Battery or energy system comparison
• Environmental impact of fuels or water treatment
• Nanomaterial application-based case study