VTU NUMBER:

VELTECH Dr. RR & Dr. SR TECHNICAL UNIVERSITY

M.TECH CYCLE TEST-I, SEPTEMBER-2015

YEAR/SEM FIRST YEAR / I SEM DURATION: 1HR 30MINSBRANCH(ES) AUTOMOBILE ENGG(CIRT) MAX MARKS: 50SUBJECT CODE/TITLE FUELS AND EMISSIONS P1AUIC05

EXECUTION PLANS.NO ACTIVITIES TIME IN

MINUTES1 TO STUDY THE QUESTION PAPER AND TO CHOOSE THOSE TO

ATTEMPT3

2 PART- A 3MINUTES *4QUESTIONS 123 PART- B10MINUTES *4QUESTIONS 404 PART- C 16MINUTES *2QUESTIONS 325 QUICK REVISION & WINDING UP 36 TOTAL 90

PART- A ¿MARKS] (ANSWER ALL QUESTIONS)

1. Why alternate fuels are essential?2. What is meant by Transesterification?3. What are the properties of CNG fuel?4. Indicate various constituents of LPG.

PART- B¿MARKS] (ANSWER ALL QUESTIONS)

5. (a) List out comparative properties of alternate fuels CNG, LPG, BIODIESEL and BIOGAS(OR)

(b) Write short notes on purification methods used for raw Biogas.

6. (a) Explain the various processes of extracting bio-diesel.(OR)

(b) Explain the major components of a simple petrol / CNG system

7. (a) Describe the different methods of using Vegetable oils and Biodiesel in C.I. engines(OR)

(b) Discuss the engine performance and emission characteristics of CNG.

8. (a) Discuss important properties of biogas in detail.(OR)

(b) Discuss the advantages and technical issues of LPG as a fuel for I.C. Engines.

PART- C [2×9=18MARKS] (ANSWER ALL QUESTIONS)

9. (a) Explain availability of alternate fuel.(OR)

(b) Explain the performance and emission characteristics of CI engine while using Biodiesel as fuel.

10. (a) Discuss the modifications required in SI engine to use LPG as fuel.(OR)

(b) Describe the production of Biogas for automotive application.

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