Automotive Fuels and Emissions, Question Paper of B.Tech 4th Semester,Download Previous Years Question Paper 2

Roll No.

Total No. of Questions: 09]

B. Tech. (Sem.-4th)

AUTOMOTIVE FUELS AND EMISSIONS

Subject Code: BTAE-405

Paper ID: [A1165]

Time: 3 Hrs.

1. SECTION-A is COMPULSORY consisting of TEN questions carrying

TWO marks each.

2. SECTION-B contains FIVE questions carrying FIVE marks each and

     students has to attempt any FOUR questions.

3. SECTION-C contains THREE questions carrying TEN marks each and

students has to attempt any TWO questions.

SECTION-A

l. Answer briefly :

i. Define automotive fuel.

ii. What are the disadvantages of LPG fuel?

iii. Draw with neat sketch Pressure-Time Diagram of combustion for

SI Engine.

iv. What is PCV for emission control?

v. How hydrogen energy be used for air and surface transport?

vi. What are the advantages of CNG fuel?

vii. Write any one reason for Low CO and Hydrocarbon emission in

C.I. Engine.

viii. What are causes of knock in S.I. engines?

ix. What is effect of compression ratio on concentration of NOx emissions?

x. Draw with neat sketch NDIR analyzer.

SECTION-B

2. Explain clearly how the atmospheric pollution from the carburetor and the

fuel tank is prevented.

3. Write short notes on need for alternative fuels

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

5. Explain color and aldehyde emissions from diesel engines.

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

fuel.

SECTION-C

7. Describe how proper design of combustion chamber helps to reduce

exhaust emissions.

8. Write short notes on following:

(i) CNG fuel

(ii) Vegetable oils

9. Write short notes on following:

(i) Nox treatment in diesel engine

(ii) Smoke meter.