D

Reg No.:

10000AU407122003 Pages: 2

Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Seventh Semester B.Tech Degree Examination (Regular and Supplementary), December 2020

Max. Marks: 100

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Course Code: AU407
Course Name: ADVANCED IC ENGINES

PARTA
Answer any three full questions, each carries 10 marks.
With a neat sketch, explain the working of Stirling engine.
Discuss the working principle of Wangle engine with a suitable sketch.
What are the advantages and disadvantages of Rotary Engine compared to
Reciprocating IC engine?
Explain the working of free piston with a cross sectional sketch.
What are the characteristics of Multi — Fuel Engines?
Describe the components and working of CRDI engine.
PART 13
Answer any three full questions, each carries 10 marks.
Define lean combustion. Mention the advantages and disadvantages of lean burn
engines.
Explain the Intercooling, Reheating and Regeneration methods used in open
cycle gas turbine plant with a suitable sketch.
Explain the process of Auto-ignitive burning.
How lean-burn engines achieve the air fuel ratio as lean as 65:1 by mass?
List the advantages of Gas Turbine power plant over Diesel Power Plant.
Explain the limitations of gas turbine in automotive application.

PART C
Answer any four full questions, each carries 10 marks.

Explain the advantages of turbocharged gasoline direct injection.
With neat sketch explain constructional features of a direct injection natural gas
engine.

Discuss the constructional features and working of a stratified charge engine.

What are the operational limits of an HCCI engines?

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Duration: 3 Hours

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