JNTU Kakinada B-Tech 4-1 AUTOMOTIVE POLLUTION AND CONTROL (Open Elective) R13 March 2018 Question Paper

IV B.Tech I Semester Supplementary Examinations, February/March – 2018
AUTOMOTIVE POLLUTION AND CONTROL (Open Elective)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
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PART ?A (22 Marks)1. a) What are the emissions standards for light commercial vehicles? [4]
b) Brief about NOx formation mechanism in CI engine. [4]
c) Name the post combustion treatment methods. [3]
d) What are the economic challenges in SI engine? [4]
e) What are the instruments measure the smoke? [3]
f) Describe knock in SI engine [4]

PART ?B (3×16 = 48 Marks)2. a) What is volatile compounds, ammonia and amines? Explain its effects in detail. [8]
b) Describe the European regulatory test procedures. [8]

3. a) List factors affecting emissions in CI engines and explain in brief. [8]
b) Explain CO and HC formation mechanism in SI engines. [8]

4. a) How particulate traps works in diesel engine emission reduction? Explain. [8]
b) Describe three-way catalytic converter with help of sketch. [8]

5. a) Explain cost of injection systems in CI engines. [8]
b) What are catalyst materials and explain its economic constraints? [8]

6. a) Explain measuring instruments used for SI engine emissions. [8]
b) Explain Bosch and Hartridge types in diesel engines. [8]

7. a) Discuss on alcohols as alternative fuels. [8]
b) What are the advantages of vegetable oils in diesel engines? Explain. [8]

Code No: RT41245
Set No. 1
R13
1 of 1