ANNA UNIVERSITY:: CHENNAI

UNIVERSITY COLLEGE OF ENGINEERING THIRUKKUVALAI

DEPARTMENT OF MECHANICAL ENGINEERING

III Cycle Test-April’2016-Final year Mechanical Engineering

Sub Code & Name: ME2041-Advanced IC Engines Duration: 90 minutes

Max marks: 50

Answer all Questions

Part-A

1. Write the advantage and disadvantage of alcohol as a fuel?

2. Write the two types of LPG used in automobiles engine?

3. Mention the advantages of LPG as IC engine fuel

4. What are the techniques of using alcohol in diesel engine fuel?

5. Why lean mixture is preferred in SI engine?

Part-B

6. Explain the two methods by which hydrogen can be used in CI engine.(10 Marks)

7. What do you understand by charge stratification? Explain the method of achieving the same

with suitable sketches. Discuss the advantages and disadvantages of charge stratification.

(15marks)

8. Discuss the operation of gasoline direct injection system with a block diagram showing

clearly all the sensors.(15 marks)