Automotive and Combustion Engine Technology(Department Elective III) — Summer 2022

What is turbo charging?

What is engine downsizing?

Enlist strategy for emission control in gasoline and diesel fueled vehicle

Explain the wall, air and spray combustion system for the implementation of mixture preparation of gasoline direct injection

Explain thermal management approach to achieving auto ignition.

How is stratified charge combustion achieved?

What are the types of nozzle used in gasoline direct injection? Also explain their constructional features.

Describe Thermal loading and Turbo lag in context of gasoline engine with turbo charging

Explain EGR with the neat sketch.

Explain the following: (a) Lean NOx trap (b) Emission control devices

Explain the thermodynamic aspects of gasoline direct injection and describe the combustion processes

Write short notes on engine knock.

Explain the reasons for knocking and abnormal combustion with turbocharging in SI engine?

What is auto ignition phenomenon?

Draw the Schematic diagram of SCR treatment.

What are the advantages of combining direct injection and turbo charging in spark-ignition engine?

What are the advantages of lean boost direct injection (LBDI) concept?

Enlist the limitation of HCCI combustion

Describe how the selective catalytic reduction (SCR) NOx control as an alternative to lean NOx traps (LNT).

Write short notes on exhaust gas treatment on fuel economy.

Draw a diagram of a typical DI gasoline engine with sensors and control

Explain stages of combustion of HCCI engine.

Explain exhaust gas treatment

Mention the advantages of direct injection system

Explain the effect of fuel injection timing on combustion