Download AKTU B-Tech 6th Sem 2016-2017 NAU602 Automotive Fuels And Lubricants Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 6th Semester (Sixth Semester) 2016-2017 NAU602 Automotive Fuels And Lubricants Question Paper

Printed Pages : 1 Roll No.| l l l l I l l l l l NAU602
B. TECH.
THEORY EXAMINATION (SEM?VI) 2016-17
AUTOMOTIVE F UELS AND LUBRICANTS
Time : 3 Hours Max. Marks : 100
Note : Be precise in your answer.
SECTION ? A
1. Attempt all parts of the following questions: 10 x 2 = 20
(3) Define the term ?ash point.
(b) Differentiate between drop point and pour point.
(e) Explain Viscosity of lubricating oil.
(d) Write the classification of specific fuels.
(e) Write the compositions gases in CNG.
(f) Define the calorific value of a fuel.
(g) Define the thermo?chemistry of a fuel.
(h) Define the cetane number.
(i) What is the physical concept of diesel index?
(i) Give the classification of petroleum fuels?
SECTION ? B
2. Attempt any five parts of the following questions: 5 x 10 = 50
(3) Explain the thermo of fuels with examples and reactions and how it works.
(b) Define the cracking. HOW thermal cracking and catalytic cracking are important for
refining.
(c) Explain the affect of ?ames in S I and C I engines with neat sketch.
((1) Explain the need of alternative fuel for automobile and what is the feature of alternative
fuel in India?
(e) Explain the phenomenon of knocking in S 1 engines. What are the different factors
which in?uence the knocking?
(f) Explain the dry sump and wet sump lubrication system used in automotive engine.
(g) Explain Reid vapour pressure test for fuels with neat sketch.
(h) Write short note on:-
(i) Deterioration
(ii) Importance of fuel additives
SECTION ? C
Attempt any two parts of the following questions: 2 x 15 = 30
3. Explain the suitability of CNG in conventional diesel engine and show the various
results through graphs, both in CNG and diesel modes.
4. Explain the hydro-dynamic lubricating system. What are the advantages and
disadvantages of this system?
5. Discuss the various properties of automotive fuels. Explain the various engine
Operating conditions which depend upon the volatility of fuel.