Automotive Fuels and Emissions, Question Paper of B.Tech 4th Semester,Download Previous Years Question Paper 3

Roll No …….

Automotive Fuels & Emissions

(BTAE-405)

Time : 3 Hours

Note: The candidates are required to attempt any four questions from section B and any two questions from section C. Section A is compulsory shall contain only one question consisting of 10 short answer type questions carrying 02 marks each. Assume any missing data suitably. Steam table is allowed.

Section –A

1.       

a.     What is the effect of air fuel ratio in C.I  Engine

b.     What are the disadvantages of LPG fuel

c.      Draw with neat sketch Pressure – Time Diagram of combustion for SI Engine.

d.     What is Sonex system for emission control

e.      Write any one reason for Low CO and Hydrocarbon emission in S.I. Engine.

f.       How auto – ignition is responsible for knocking in C.I engines.

g.     What is meant by SMOKE Emission

h.     Draw with neat sketch flame ionization detector

i.       What is the function of or sat apparatus 

j.       What is catalytic converter

Section –B

2.     Brief about emission characteristics of methanol and gasoline blend used in C.I. Engines.

3.     Explain the performance and emission characteristic of engine running on CNG.

4.     What is the problem experienced while using vegetable oil in diesel engine.

5.     Brief about Hydrogen fuel and its characteristics.

6.     Explain the performance characteristics and limitations of the bio diesel fuel.

Section –C

7.     Describe the phenomenon of detonation or knocking in C.I. engines. How can it be controlled?

8.     Write the short notes on following: i)alternate fuel   ii) CNG fuel

9.     Explain in brief with neat sketch NOx treatment in diesel Engines