Automobile Engine, Question Paper of B.Tech AE (D) 4th Semester,Download Previous Years Question Paper 6

.B. Roll No. _________

AUTOMOBILE ENGINE-1

4th Exam/AutoEngg/9307/Mey’09

Duration 3 Hrs.

Note : Attempt any five questions

1.       

a.     The fluctuation of engine speed during a cycle depends upon _____

b.     The piston pins in the modern automobile engines are usually _____

c.      Can shaft in an engine is always mounted _______

d.     On the rear end of a crank shaft are mounted ______

e.      The exhaust value usually starts opening ______

f.       The carbon from the cylinder head is removed with _________

g.     Engine over heating may result due to ______

h.     From oil pump the oil goes directly to _________

i.       The choke is usually closed when the engine is ________

j.       Contact breaker points are generally made of ________

2.       

a.     Explain advantage and disadvantage of stroke and two stroke engines.

b.     Describe in detail the function construction and materials used for the

                                                             i.      Connecting road

                                                           ii.      Pittston ring

                                                        iii.      Camshaft

                                                        iv.      Crank shaft

3.       

a.     Explain the following terms:

                                                             i.      Bore and stroke

                                                           ii.      Specific fuel consumption

                                                        iii.      Thermal efficiency

                                                        iv.      Total volume

b.     Explain with neat sketch the construction & working of four stroke I.C engine

4.       

a.     Explain fuel supply circuits in petrol engine and also explain the function of various components in the circuit?

b.     Explain pump fuel supply system.

5.       

a.     Name different methods of engine cooling explain in detail the air cooling method ?

b.     With the help of suitable diagram ? explain various types of temperature gauges?

6.       

a.     Explain clearly pressure system of lubrication for an automotive engine with neat sketch

b.     Discuss different types of lubricants.

7.       

a.     Explain the construction of distributor and also discuss the function of distributor.

b.     Write a note on spark plug gap adjustment.

8.                             Short notes on

a.     Solex carburetor

b.     Exhaust manifold

c.      Electronic ignition system  

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Automobile Engine, Question Paper of B.Tech AE (D) 4th Semester,Download Previous Years Question Paper 5

S.B. Roll No. _________

AUTOMOBILE ENGINE-1

4th Exam/AutoEngg/9307/Mey’09

Duration 3 Hrs.

Note : Attempt any five questions

1.       

a.     Is there any advantage in using glycerin over water as coolant?

b.     Explain the term ‘flash point’ and fire point’ of a lubricant.

2.     How will you test the condenser of ignition system?

a.     What are the requirements of  good contact breaker point?

b.     Explain the term reach  of spark plug.

3.       

a.     What are the merits and demerits of detachable and integrant types of cylinder heads?

b.     How the spark plugs are specified?

c.      Explain the term ‘octane number’?

4.       

a.     Explain crank case ventilation?

b.     Write short note on b-metal piston?

c.      Name various types of ring end gaps. Write one advantages of each.

5.       

a.     Explain the term mean effective pressure and specific fuel consumption.

b.     What are the advantages of E-head valve mechanism?

c.      What is the function of thrust bearing on a crankshaft.

6.       

a.     What is function of main journal?

b.     Explain the term ‘pour point’

c.      Explain the various mechanical factor affecting knocking?

7.       

a.     How will you recognize mixture strength (rich or weak)?

b.     What are advantages of petrol injection.

c.      What happens if choke valve is left closed after the engine is started?

8.      

a.     Explain delay nozzle and pint ax1 nozzle used in fuel pump injector.

b.     What are the limitations of simple carburetor.

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Automobile Engine, Question Paper of B.Tech AE (D) 4th Semester,Download Previous Years Question Paper 4

S.B. Roll No. _________

AUTOMOBILE ENGINE-1

4th Exam/AutoEngg/9307

Duration 3 Hrs.

Note : Attempt any five questions. Question No.1 compulsory.

1.     Attempt any ten questions.

a.     What are the advantages of MPFI system?

b.     What are the advantages of single roin overhead valve mechanism?

c.      Explain the term square engine?

d.     What’s the function of condenser in the ignition system?

e.      Define the following terms.

                                                             i.      Crank throw

                                                           ii.      Mean effective pressure indicated thermal efficiency.

f.       Explain the term super charging?

g.     Why compression route of diesel engine is more than petrol engines?

h.     What are the advantages of pressure capacity used on radiator of cooling system?

i.       What is the  influence of altitude in a simple carburetor?

j.       Explain the function of fly wheel.

k.     Why oil colors are provided in heavy duly engines?

Section –B

Note : attempt any three questions.

2.       

a.     Draw the port diagram of two stroke petrol engine and explain ?

b.     Explain with neat sketch gear type oil pump with pressure relief valve?

c.        

                                                             i.      What are the considerations for good manifold design?

                                                           ii.      Write short note on pulse generator

d.     Explain with neat sketches various types of oil fitiers?

                                                             i.      Explain with neat muffler

                                                           ii.      Explain the term ensure stumble? How it is improved in simple carburetor. 

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Automobile Engine, Question Paper of B.Tech AE (D) 4th Semester,Download Previous Years Question Paper 2

S.B. Roll No. _________

AUTOMOBILE ENGINE-1

4th Exam/AutoEngg/9307

Duration 3 Hrs.

Note : Attempt any five questions. Question No.1 compulsory. Draw neat sketches whoever necessary

1.     The working cycle of a four stroke engine is completed in the following number of revolutions of crankshaft

a.     ½

b.     1

c.      2

d.     4

e.      8

2.     In a diesel engine, fuel  is ignited by

a.     Spark

b.     Infected fuel

c.      Heat resulting from compressing air that is supplied for combustion

d.     Ignitor

e.      Combustion chamber

3.     The calorific value of gaseous fuel is expressed in terms of

a.     K cal

b.     K cal/kg

c.      K cal /m2

d.     K cal/m3

e.      All of the above

4.     An engine indicator is used to determine the following

a.     Speed

b.     Temperature

c.      Volume of cylinder

d.     M.e.p and I.H.P

e.      BHP

5.     The specific fuel consumption per BHP hour for a petrol engine is approximately

a.     0.15kg

b.     0.2Kg

c.      0.25kg

d.     0.3kg

e.      035kg

6.       

a.     Discuss the various types of cylinder arrangements available for an automobile

b.     State and explain the importance of engine location in a vehicle.   

c.      Discuss the four strokes of C.I engine.

7.       

a.     What do you understand by the terms top and bottom dead centers, discuss

b.     Discuss ‘Compression Ratio’ of a diesel engine.

8.     Discuss AC mechanical and electrical fuel pumps of an engine.

9.       

a.     Discuss the requirements of air fuel rations under the various load conditions of a petrol engine.

b.       What is the role of a governor?

10.                         Draw a schematic sketch of cooling system of a diesel engine and name its components.

11.                          

a.     Name the various lubrication systems of a petrol vehicle and discuss any one.

What are the various requirements of the engine lubricating oils? 

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Automobile Engine, Question Paper of B.Tech AE (D) 4th Semester,Download Previous Years Question Paper 3

.B. Roll No. _________

AUTOMOBILE ENGINE-1

4th Exam/AutoEngg/9307/Mey’07

Duration 3 Hrs.

Note : Attempt any five questions. Question No.1 compulsory.

1.      

a.     Differentiate between the concept of internal and external combustion engines giving example of each .

b.     Discuss of advantages of IC over the external combustion engine.

c.      Efficiency of air standard Otto cycle is expressed as Pi =

d.     Compare between the two stroke and four stroke engines, in brief only

e.      Name the various engine performance parameters.

2.       

a.     Name the materials of the following components

i.                   Cylinder block

ii.                 Cylinder head

iii.              Piston connecting rod

iv.              Cam shaft

b.     Draw the diagram of fly wheel and explain its working principle

3.     Draw a neat sketch of fuel supply circuit of petro engine and explain its working in brief.

4.       

a.     What is the purpose and function of a carburetor in a petrol engine?

b.     Describe in brief the working of a multipoint fuel injection (MPFI) system.

5.     Name the various components of ignition system of a petrol engine. Describe any one with the help of neat sketch

6.       

a.     What is the necessity of cooling system in any automobile engine?

b.     Discuss the role of radiator in an engine.

c.      How scaling and c corrosion are  minimized

7.     Draw a schematic diagram of lubricating system of your choice. Name its various components and describe any one.

8.      Write short note on any three

a.     Air cleaners

b.     Silencer

c.      Valve timing

d.     Additive for lubricants

e.      Crank case ventilation

f.       Anti freeze solutions

g.     Electronic ignition system

h.     BHP by more test 

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