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ME-503 (C) · Alternate Automotive Fuels & Emissions/Important Questions

Alternate Automotive Fuels & Emissions (ME-503 (C)) - Important Questions

  1. Unit 514 Marks High Priority

    Explain the mechanisms of formation of hydrocarbons (HC), carbon monoxide (CO) and nitrogen oxides (NOx) in spark-ignition engines and discuss factors that influence their formation.

    Core emission chemistry question; repeatedly asked across papers and analytics.

  2. Unit 514 Marks High Priority

    Compare and contrast diesel and petrol emissions (types, relative magnitudes, health/environmental impacts) and outline major control strategies.

    High-frequency comparative question covering emissions, impacts and control strategies for SI and CI engines.

  3. Unit 514 Marks High Priority

    Describe biodiesel production by esterification/transesterification, list key properties of biodiesel and discuss its effects on engine performance and emissions.

    Important fuel-alternative topic: production route, properties and engine effects; frequently examined.

  4. Unit 514 Marks High Priority

    Explain the types of catalytic converters and measurement techniques (NDIR, FID, chemiluminescent analyzer, GC, smoke meters) used for exhaust emission analysis.

    Instrumentation and after-treatment topic appearing often; asks for types and measurement techniques used in exhaust analysis.

  5. Unit 514 Marks High Priority

    Describe emission norms and test procedures (Bharat Standards up to BS-IV) used for automotive exhaust emissions.

    Regulatory and test-procedure topic with high exam relevance (Bharat Stage norms up to BS-IV).

  6. Unit 57 Marks High Priority

    Discuss storage, handling and safety aspects of gaseous fuels (CNG, LPG, hydrogen, biogas) and fuel-metering considerations for gaseous fuels.

    Gaseous fuels operations and safety are recurring syllabus items; includes fuel-metering considerations.

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