thirumal - comm. record - 23

8/4/2019 Thirumal - Comm. Record - 23

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CURRICULUM VITAE


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A COVERING LETTER TO IBM FOR THE POST OFSOFTWARE ENGINEER

COVERING LETTER

From

S. Tamilselvan,No. 449/c, Rajive Ghandi Street,PalavansathuKuppam,Vellore ,Pin 632002.

To

THE MANAGING DIRECTOR,IBM,Chennai 18.

Respected Sir,

Sub: Post of Software Engineering Regarding.

Ref.: Advertisement dated in The Hindu on 22.12.2008.- - - - -

I hereby apply for the post of software engineer in your prestigious

organization. I have a work experience for 3 years. I am a software

engineer with a sound technical knowledge in my subject.

I was the team Leader, and so I had the sound power in successful

managing the team. I also had done 3-major projects and 4-mini projects

and was successful in completing my project in time.

If given an opportunity to serve in your organization, I will definitelyprove to be an efficient person and I will try my level my level best to

fulfill the requirements that are needed for the growth of the organization.

I have herewith enclosed my CV for your kind perusal.

Thanking you,Yours obediently,

(S. TAMILSELVAN)


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A CV-TYPE 2 FOR THE POST OF S/W ENGINEER

CURRICULUM VITAE (TYPE 2)

CAREER OBJECTIVE:

To place myself in a working environment which environment this

would have scope for utilizing my existing skills and to develop my

workings skills making myself very useful to the organization.

ACADEMIC QUALIFICATIONS :

Standard /Degree School / College

Percentag

e ofMarks

Year of

Passing

B.E ITGanadipathy Tulsis Engg.College, Kanyambadi, Vellore.

84 2005

DITSwamy AbedhanandhaPolytechnic College, Thellar,Vellore.

87 2002

10thGovt. Higher Secondary School,Kannamangalam.

89 2000

AREAS OF INTEREST :

Design & Fabricate new machines

Maintenance Field

Thermal Engineering

SOFTWARE EXPOSURE :

Languages C, C++

Database SQL, Visual Basic

Operating Systems DOS, Windows Family

MS-Suite MS-Office

INDIVIDUAL STRENGTHS :

Readiness to work

Good communication skills and approaching manner


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Team Worker and Co-Ordinate

HOBBIES :

Playing Cricket, Basket Ball

Listening songs.

Picture collections

PERSONAL INFORMATION :

Fathers Name : K.G. Subramanian

Date of Birth : 30.07.1985

Sex : Male

Nationality : Indian

Permanent Address : : No. 1005, Road Street,

Kattukanur village & Post,

Arni Taluk, T.V. Malai District,

Pin 632312.

Contact Number : 9443423449 & 9786332543

Linguistic Ability : English, Tamil & Telugu

DECLARATION

I do hereby declare that the information furnished above are true to the

best of my knowledge and belief.

Yours faithfully,Place :

Date :

(S. THIRUMAL VALAVAN)


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COVERING LETTERFrom

S. THIRUMAL VALAVAN,No. 1005, Road Street,Kattukanur village & Post,Arni Taluk, T.V. Malai District,Pin 632312.

To

THE GENERAL MANAGER,Human Resource,Infosys,Chennai 18.

Respected Sir,

Sub : Post of Manager - Regarding.

Ref. : Advertisement dated in The Indian Expresson 23.12.2008.

- - - - -

With reference to your advertisement in the The

Indian Express dated 23.12.2008. I hereby apply for the

post of the Manager in your organization. I enclose

herewith my curriculum vitae for your kind consideration.

If given an opportunity, I assure you I will do my

best for the growth of the organization.

Thanking you,Yours

obediently,

(S.THIRUM


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ALVALAVA

N)

Encl. : 1. Curriculum Vitae.

2. Conduct Certificate.


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CURRICULUM VITAE

Name : S. THIRUMALVALAVAN


Date of Birth & Age : 30.07.1985 & 23Years.

Permanent Address : No. 1005, MiddleStreet,

Kattukanur village &Post,

Arni Taluk, T.V. MalaiDistrict,

Pin 632312.


Religion : Hindu

Gender : Male

Marital Status : Single

Contact Number : 9786332543

Educational Qualification : DME & BE MECHANICAL

Technical Qualification : * AutoCAD

* DFWM


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Languages Known : English, Tamil& Telugu

E-mail : [email protected]

ACADEMIC QUALIFICATIONS :

Standard /Degree

School / CollegePercentag

e of

Marks

Year ofPassin

g

B.E - MECHGanadipathy Tulsis Engg.College, Kanyambadi, Vellore.

84 2005

DMESri Venkateshwara PolytechnicCollege, Adukamparai, Vellore.

87 2002

10thGovt. Higher Secondary School,Kannamangalam.

89 2000

SOFTWARE EXPOSURE :

Languages C, C++

Database SQL, Visual Basic

Operating Systems DOS, Windows Family

MS-Suite MS-Office

PAPER PRESENTATION :

Title : Thermal Energy

Occasion : Mechanical

Venue : Swamy AbinandhaPolytechnic College

Languages Known : English, Tamil& Telugu
mailto:[email protected]:[email protected]


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Other Interests : Reading Books

Sports : Playing Cricket,Basket Ball

EXTRA CURRICULAR ACTIVITIES :

An active Participant in all Events.


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RESUME


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THIRUMAL VALAVAN. S

E-mail :[email protected]

Mobile : 9786332543

OBJECTIVE :

To empower the organization with my contribution, with whom I am

working as a member.

EXPERIENCE :

Working a Assistant Maintenance Engineering in Embsys Infotech

from Aug-2007 to till date.

Job Responsibilities :

PCB Designing

Circuit Analysis

Soldering

Preparing Documents

PROFESSIONAL COMPETENCIES :

Problem solving and analytical talents combined with man management.Proven multi-tasking capabilities with strong ability to plan, prioritize and

manage assignments, under aggressive timelines.

Strong leadership talents, team player attitude and spirit, and the natural

ability to establish consensus among cross-functional lines.

ELECTIVES TAKEN :

Unconventional Machining Process

Renewable resource

CERTIFICATIONS :

BHEL (Bharath Heavy Electrical Limited)

L & T (Larsen & Tubro)

ISRO (Indian Space Research Organization)

TECHNICAL STRENGTHS :

Operating System : Windows 98 & Windows XP.
mailto:[email protected]:[email protected]


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Expertise in : Automobile Engineering,

CO-CURRICULAR ACTIVITIES :

Training under taken in BHEL.

Personality development and career development programs.

PERSONALITY STRENGTHS :

Willing to learn more.

Well versed in communication.

Active participation in association function.

Ability to work in a team and constant focus on team goals.

An attitude to take up challenging tasks with optimism.

PERSONAL DETAILS :


Date of Birth : 30.07.1985

Sex : Male


Permanent Address : : No. 1005, Middle Street,Kattukanur village & Post,

Arni Taluk, T.V. Malai District,Pin 632312.

Contact Number : 9786332543

Linguistic Ability : English, Telugu & Tamil.

DECLARATION


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I hereby declare that the above all details are all true to the best of my

knowledge.

Place :

Date : (S. THIRUMAL VALAVAN)


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E-MAIL OFFICIAL


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Draft a mail to the Municipality Officer and also

attach a copy to the District Collector complaining

about the corruption that is prevalent in the Taluk

Office.

From : [email protected]

To : [email protected]

CC : [email protected]

Sub : Regarding Corruption in Taluk Office.

Respected Sir,

I am a resident of Vellore. Last week I had been to Taluk Office to

get my Community Certificate where the officer asked for a bribery

amount. As a citizen of a country I refused to pay the money and came

back. I was often meeting many people in the Taluk Office, but all my

efforts to get to a community certificate ended in failure.

Finding no other go I paid the bribery amount and to my surprise

immediately I got my community certificate. These kinds of corruption

are prevalent in Taluk Office. Just imagine the people who are below

poverty line.

I have forwarded this message to District Collector also. If this

corruption is going to extend in the future, definitely we cant expect adeveloped status to our country.

Kindly take this issue into your consideration and take step

immediately to eradicate this evil from our society.

Thanking you,Yours faithfully,

(S. TAMILSELVAN)
mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]


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E-MAIL OFFICIAL LETTER



CC : [email protected], [email protected]

Sub : When will we get freedom - A question to Municipality

Sir,

I would like to dram your kind attention about the draw backs that I

found in our location which may rectify through your news papers letter

to editor.

As known as well educated area is dominated with few major draw

backs as follows.

During war times instead of sending our armed forces we can send

our area mosquitoes. Success is guaranteed.

Our streets are made as pigs walking area.

On free of cost every day we are seeing monkey circus.

No doubt every day we have the musical program by dogs on 24 hrsbasis.

From these, entire can we be released and to breadth freely. Will

the elected members of this area concentrate on this subject ?

Thanking you,Yours sincerely,
mailto:[email protected]:[email protected]:[email protected],%[email protected]:[email protected]:[email protected]:[email protected],%[email protected]


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(S.THIRUMAL VALAVAN)

E-MAIL UNOFFICIAL LETTER




[email protected]

Subject : Hi ...

Dear Friend,

How are you, I am fine here. How about your studies? Hope they

are going on well.

Yesterday I attended the campus interview, I was comfortable, when

I started responding to the question, I was very much concentrating for

the pleasant face and the correct answers. The interview team selected

me unanimously. I am happy and now so happy when I shared the same

with you.

Anyhow, we will meet this week end to share the happiness in the

name of a good treat by me.

Bye bye.
mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]


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Yours lovingly,

(S. THIRUMALVALAVAN)


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LETTER WRITING-OFFICIAL


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LETTER TO THE DISTRICT COLLECTOR INFORMING ABOUT THE BAD

ROAD CONDITION IN MY LOCALITY AND ASKING HIM TO TAKE THE

IMMEDIATE ACTION ON IT.

Vellore

20.12.2008

From

S. THIRUMAL VALAVAN,No. 1005, Road Street,Kattukanur village & Post,Arni Taluk, T.V. Malai District,Pin 632312.

To

THE DISTRICT COLLECTOR,Collectorate Office,Vellore - 4.

Respected Sir,

Sub : Complain about bad condition of the Roads Reg.- - - - -

I am residing in the above mentioned area for the past 20 years. A

road in my locality is in a very bad condition. Due to which, we the people

in our locality are suffering a lot.

There are so many pits in the road and it is very difficult for the

inhabitants of the people and to reach their destination. No one was able

to drive their vehicles safely on this damaged road.

The drainage system is also not in a proper condition, due to which

during raining season the water gets stagnated. The rainwater gets

accumulated in the pt and they never drain. Due to which people of our

locality are suffering from malaria, fevers.


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The pregnant women, elders and the sick people find it really very

difficult to have access to the hospital. This issue has already beeninformed to the municipality which is of no use.

Sir, kindly takes immediate steps so that our people of our locality a

peacefully happy and hygiene place.

This particular issue in not only in our area but also in and around

Vellore. Kindly, take steps to repair these roads.

Thanking you,

Yours sincerely,Fakkerithakka,

People.

Address on the Envelop

To

The District Collector,Collectorate Office,Vellore 4.


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LETTER TO MY FRIEND SAYING INPLANT TRAINING THAT I HAVE

DONE DURING MY SEMESTER HOLIDAYS

Vellore

20.12.2008

Dear Friend,

Hope this letter keeps you in good spirit. I hope by this time your

results would have come, and I am sure that you would be one of the

toppers in the class.

This semester holidays, I along with my friends went for in plant

training at BSNL, Vellore for two days. The training was really very useful

and informative.

We were shown the operating system of telephone lines in and

around Vellore, how telephone is connected to the internets, and also the

change of exchange numbers. We were also shown about how the trunk

calls were made on those days. They also showed us the earlier types of

phones.

The officials at BSNL are very polite and delighting in giving various

information to us. We all felt very amazing about the way how they are

organizing such a big unit. We will discuss about this when we meet next

week.

It was not only an educational moment but also an enjoy full

moment. Because all of my ten friends (MKMS GANG) accompanied this

training. We all really had a great time during this training.


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I hope that you are preparing for the campus interviews now

onwards. If you get any company question papers then send that papersthrough mail.

I hope that you would also have attended implant training and reply

to me soon, so that we can meet in one place and discuss so many things.

TAKE CARE OF YOUR HEALTH

Yours friendly,

(S. THIRUMAL

VALAVAN)

Address on the envelop:

To

S. Murali,No. 115, North Street,Alagapuram police station opposite,Salem 16.


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REPORT WRITING


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DAILY REPORT

Date :

To : The Manager

From : S. Thirumal valavan

Sub : Daily Report

In response to your letter, Dated 22.12.2008. The following is the

work completed report of today (i.e.,) 22.12.2008.

Morning 8 to 8.30 meeting held with team members. In the

assigned project. We have completed the following.

1. 8.30 12.30 Collected data

2. 1.30 04.30 Started doing the program.

3. 04.30 06.30 Reviewed the program and gave demonstration to

the senior coordinator.


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WEEKLY REPORT

From

The Director,Training and Placement,GTEC, Vellore.

To

The Vice Chairman,GTEC, Vellore.

Sir,

Sub : Weekly report of Training and Placement for the period17.12.08 to 21.12.08.

- - - - -

With reference to your letter dated 15.12.2008, we enclose here

with the report No. 21 for the period 17.12.08 to 21.12.08, in respect of

Training and Placement in the file WR-(21) 23.12.2008 Training and

Placement, with kind regards.

Thanking you,

Yours Sincerely,


Placement Officer


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TRAINING AND PLACEMENT WEEKLY REPORT

Placement :

Anna University Placement interview information of GE Energy (Hyd)

on 11th 12th Dec 2008 at JP college of Engineering at Trichy circulated to

MECHANICAL - Department.

Training :

1. English language communication skills laboratory classes started

from III MECHANICAL, CSE, IT with effect from 05.10.08 and ECE

on 09.12.08.

2. Confirmation obtained from NITTR for FDP and letter sent to

Dr. Bhakthavachalam.

Other Activities :

1. Preparation for graduation day started.

2. Topper list prepared and sent on 11.12.08.

3. Attendance register for III year classes of MECH, CSE, ECE and IT

prepared.

Constraints :

1. DTH for placement cell.

2. Software for communication.

3. Reference books and CDs for communication skills laboratory

needed.

4. Marker pen-4, Colors-2 sets are needed.

Director,

Training andPlacement.


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QUARTERLY REPORT

Date :

To : The Manager - HR.

From : S. Thirumal valavan

Sub : Project plan and Execution L & T (Extension of Substation)

The following is the quarterly progress for the job assigned to my

team (01.12.08 to 23.12.08)

DETAILS OF ACTIVITY PROGRESS

1. Data collection of site details 1. Completed on 28.02.08

2. Erection Material Order 2. Under progress 50%

completed

3. Clearance from Govt. agencies for site 3. Completed

4. Man power requirements 4. 20% placed

5. Budget Expense 5. 10% of the total allocated

budget spent.

Constraints :

1. A vehicle for movement urgently at site.

2. Mobile hospital to be organized for health checkup.

3. Safety boards/accessories to be dispatched immediately.


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GROUP DISCUSSION


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INTERVIEW SKILLS


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INTERVIEW SKILLS

1. Tell me about yourself?

I am Thirumal valavan.S, a graduate in Anna University. I did myEngineering Degree in Ganadipathy Tulsis Jain Engineering College. My

additional computer knowledge includes C, C++. Basically, I am a sports

person. I am by nature a dedicated, hard working and enthusiastic

person. My only weakness is to go in for more details to achieve

perfection which results the time excessive stress for timely delivery.

2. What do you want to achieve in your life?

I want to achieve a big goal that had not been made by any one. I

am going to find a new one, which will be useful to the people and also

reach the people soon.

3. Do you have any actual work experience?

No, I dont have any actual work experience because I am a fresher

student.

4. How would you describe your ideal job?

I Should Have both Physical and Mental work, so that only I can

shine in life.

5. Why did you choose this career?

I had chosen this career because there is a big scope in this field

and also I can achieve great things through this field.

6. When did you decide on this career?

I had decided this career when I started to my 10th std.

7. What goals do you have in this career?

Since, I am an Electrons and Electronics student; I want to achievegreater reliability in the Electrical power supply.


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8. How do you plan to achieve your goals?

I had prepared the proper plan and the circuit diagram and all the

other things. Finally, I have to implement it through theoretically. I will be

preparing it by my own models.

9. How do you evaluate success?

By my hard work and also finishing the work in correct and neat

way.

10. Describe a situation in which you were successful?

At the moment, I finished my B.E graduation with good percentage

and distinction.

11. What thing makes you to be successful in your career?

My hard work, confidence level and the encouragement from my

parents.

12.What accomplishments have given you the most satisfaction in

your life?

I had done many accomplishments, even though I am not satisfied. I

want to do better than each project.

13. If you had to live your life over again, what would you

change?

I will not change; I want to be living as it is now once again.

14. Would you prefer to Work with information or people?

I want to work with people rather than the information.

15. Are you a team player?

Of course, I am a team player.

16. What motivates you?

My self confidence, my hard work and also encouragement from my

parents and well wishers.


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17. Why should I hire you?

If you give an opportunity to me. I assure you that I will do my best

for the growth of the organization.

18. Are you a goal-oriented person?

Yes, I am a goal-oriented person. I will set a goal and I will prepare

to achieve it.

19. Tell me about some of your recent goals and what you did to

achieve them?

Recently, I did my project in shri harikotta. There, they will permit

the students who got grade A in the online test conducted by them. For

that, I studied well and worked hard and project successfully.

20. What are your SHORT-TERM goals?

My short-term goal is to get selected in your company.

21. What is your LONG-TERM objective?My long term goal is to get selected in your company and to come

to your position.

22. What do you see yourself doing, five years from now?

Definitely, I will be working in a MNC company. I hope it will be your

company.

23. Where do you want to be ten years from now?

I will be working in your company and in your position, interviewing

the candidates, what you are doing now.

24. Do you handle conflict well?

Yes, I can handle conflicts and disputes between people and will

resolve in proper manner


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25. Have you ever come across a situation of conflict with yourboss or professor? How did you resolve it?

Yes, I had come across this kind of situation when I have organized

a Technical Symposium in my college. That was happened with my

Committee members.

27. Do you handle stressful situation well?

Definitely sir, I will relax myself and then I will take the right

decision at that Time. Why because tension will move to take wrong

decision

28. What is your greatest strength?

Myself confidence, my parents and my friends.

29. What is your greatest weakness?

My Greatest Weakness is my Angry.

30. If I were to ask one of your professors to describe you, whatwould he or she Say?

They will say that I am a good character and also a talented person.

If any work is given to me, I will finish it perfectly in short time.

31. Why did you choose your college as a place for graduation?

My college is near to my house and also it is the developing college

in our district and it is the right place for the graduation.

32. What change would you make it your career?

I like do work hard till more.

33. How your college education has prepared you for this work?

Improves the technical skills, communication skills and also the

extra curricular Activities.

34. What were your favorite classes? Give reason.


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Control Systems was my favorites class. Because that staff teaches

us in the easier way and also he gives us more practical knowledge than

the theoretical knowledge.

35. Do you enjoy doing independent research?

Yes, of course, I will enjoy doing the independent research. Because,

I will be taking the decisions of my own but during the critical situations I

will be getting guidelines from the experienced persons.

36. Who were your favorites professors? Why?

All the professors in my college were my favorites professors. They

help me to score good marks and also to do my project in the best and

easier way.

37. Why is your GPA is not higher?

I was concentrating more in the practical than the theory papers.

So, only my GPA is not higher. But, I got average in all the papers.

38. Do you have any plans for further education?

Definitely, I will be doing further education. After, selected in yourcompany, I have planned to do MBA or MCA in correspondence.

39. How much training do you think you will need to become a

productive manager?

I need some basic knowledge and the practical knowledge. This is

enough for me to become a productive manager.

40. What qualities do you feel a successful manager should have?

To run the company successfully, first the should have some

knowledge about the organization or company. Also, the manager must

plan about their work to improve the level of the organization. The should

have contact with the employees and also move in the friendly manner.

41. Why do you want to work in INFOSYS industry?


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Your company is the developing company and also there is great

opportunity for me to develop my knowledge in your company. Thats why

I want to work in your company

42. What you know about our company?

Your company is the best company in the world and one of the

leading multi national companies.

43. Why are you interested in our company?

This is one of the leading multi national companies with highly

preferred opportunities. So, I am very much interested to take part in your

organization.

44. Do you have any location preference?

No, I dont have any location preference. I will change my self

accordingly. If it is near my native means it will be more comfortable for

me.

45. How familiar are you with the community. Where our companyis located?

Up to my knowledge your company is situated in all the developing

cities.

46. How do you feel in future if you are relocated?

It depends upon the situation and project etc.

47. Are you willing to travel extensively?

If the company gives an opportunity I will travel extensively.

48. Is money is important to you?

Money is not important; its just a part of our life. Only the job

satisfaction is important.

49. What kind of salary are you looking for?It depends up on the work, which I am doing.


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50. How many money do you need to be happy?

To be frank, I hope that you will give handsome salary for my job.

51. How much you think you are worth?

I am a wrathful candidate. I cant say that through numbers.

DOS AND DONTS

1. Always be the initiator and concluder of the GD then being a

participant.

2. But if you are participant always try to be the most vial/key

participant. But if you are participant always try to be the most vial/key

participant.

3. Put points firmly and always try to get others support too.

4. If you find that the discussion so going off-track then never loose

an opportunity to bring it back to stream this is the best point to

score max.

5. Try to keep latest information on the topic.

6. Be very polite, people may try to provoke you to get more points

but try to keep cool.

7. Most important don't wait for your turn to speak when discussion is

on. Interrupt politely if you want to put forward your points.

8. Last but not the least keeps a tab on the time given for discussion.

Score points by wrapping up the discussion if you feel that the discussion

is heating but the time is going to be over.


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9. During conclusion, do end with the conclusion note. That shows your

leadership quality.

BEST SCORING POINTS ARE:

1. Initiation of discussion,

2. Always keeping/trying to keep discussion on track

3. Conclusion on time

4. Your capability to keep your cool and listen as well as putting your

points.

5. Be a leader.

GD basically means searching your team player, leadership,

communication capability.


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E-MAIL UNOFFICIAL LETTER




Subject: Introducing My Friend

Dear Siva Kumar,

How are you, I am fine here. How about your Job? Hope they are

going on well.

The bearer of this note, Deepan, plans to be in New Delhi for about

a month. A good friend of mine, He is a crack jack copywriter for one of

the agencies here. I think you two advertising executives will have a lot in

common, and I am sure you will enjoy meeting him. May you have a good

time with each other?

Thanks, Siva Kumar, for any kindness you may extend Deepan, we

will both appreciate it.
mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]


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Byebye.

Yours lovingly,



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TECHANICAL PRESENTATION

WORKING PRINICIPLE OF 4 STROKE PETROL ENGINE

INTRODUCTION:

A four stroke Petrol engine is converted heat energy into Mechanical

energy. The fuel is burn within the cylinder then its called Internal

Combustion Engine (IC Engine).

In Four stroke cycle engine one working cycle is completed in four

stroke of the piston or two revolution of the crank shaft. Hence it is called

as four stroke engine. In four stroke engine two valves are placed instead

of ports as that of two stroke engines. These are termed as inlet &

exhaust valves.

HISTORY OF PETROL ENGINE:

Petrol engine is first designed by French scientist Peant Rachers in

the year of 1862. But, it is failure.

After this, in 1876 German scientist Otto is successfully designed

the petrol engine. So, that the engine cycle is also called Otto cycle

engine. It is working on the Charles law, it is also called Constant volume

cycle engine. Method of Ignition is Spark ignition.

CLASSIFICATION OF ENGINES:

1. According to fuel used:

Petrol engine

Diesel engine

Gas engine


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2. According to cycle of operation:

Two stroke engine

Four stroke engine

3. According to Cycle of combustion:

Otto cycle engine

Diesel cycle engine

Dual combustion engine

4. According to arrangement of cylinders:

Inline engine

Vertical engine

Horizontal engine

V Type engine

Radial engine

5. According to No. of cylinders:

Single cylinder engine

Double cylinder engine

Multi cylinder engine

6. According to method of Ignition:

Spark ignition engine

Compression ignition engine

7. According to method of cooling:

Air cooler engine

Water cooler engine

8. According to combustion:

Internal combustion engine

External combustion engine


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WORKING PRINICPLE:

In Four stroke cycle engine one working cycle is completed in fourstroke of the piston or two revolution of the crank shaft. Hence it is called

as four stroke engine. In four stroke engine two valves are placed instead

of ports as that of two stroke engines. These are termed as inlet &

exhaust valves.

In this, the fuel combustion takes place by using spark plug. The

engine cycle is also called Otto cycle engine. It is working on the Charles

law, it is also called Constant volume cycle engine. Method of Ignition is

Spark ignition.

In consist of the following four strokes:

Suction stroke

Compression stroke

Power / Expansion

stroke

Exhausted stroke

1).SUCTION STROKE:

At the beginning of the stroke the piston is at the top most position

(TDC) and is ready to move downward. As the piston moves downwards,

vacuum will be created in side the cylinder. Due to this vacuum, Air fuel

mixture from the carburetor is sucked into the cylinder through inlet

valves till the piston reach bottom most position (BDC). During the suction

stroke, exhausted valve remains in closed condition and inlet valves is in

open position. At the end of the suction stroke the inlet valves will be

closed. End of this stroke the crank shaft rotates revolutions.


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2). COMPRESSION STROKE:

During the compression stroke both the inlet and exhaust valves are

in closed condition and the piston moves upward from BDC to compress

the air fuel mixture. This process continues till the piston reaches TDC as

shown in figure.

The compression ratio for perform engine vary from 6 to 8. The

pressure at the end of compression is about 600 to 1200 KN/m

2

. Thetemperature at the end of the compression is 250 to 300o C. At the end of

this stroke the mixture is ignited by spark plug. This leads to increase in

pressure and temperature of the mixture instantaneously. End of this

stroke the crank shaft rotates one revolution.

3). POWER/ EXPANSION STROKE:

The pressure and temperature range of the ignited mixture are 1800

to 2000o C and 3000 to 4000 KN/m2 respectively. During the expansion

stroke, both the valves remain closed. The rise in pressure of the mixture

exerts an impulse on the piston and pushes it downward. Therefore the

piston moves from TDC to BDC. This stroke is known as power stroke. End

of this stroke the crank shaft rotates One revolution.

4). EXHAUST STROKE:

During the exhaust stroke the piston moves from BDC to TDC, the

exhaust valve is opened and inlet valve is closed. The burnt gases are

released through the exhaust valve when the piston moves upward. As

the piston reaches the TDC, again the inlet valve opens and the fresh air

fuel mixture enters into the cylinder for next cycle of operation.


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It is obvious from the above operations, only one power stroke is

produced in every four stroke of the piston or two revolution of the crank

shaft. Hence it is termed as four stroke engine. End of this stroke thecrank shaft rotates two revolutions.

Suction Compression Power Exhaust

Stroke stroke stroke stroke

ADVANTAGES PETROL ENGINE:

Usage of fuel is limited

Lubrication cost is less

Over all heat Efficiency is High

Volumetric efficiency is High

Wear and tear is less.

DISADVANTAGES PETROL ENGINE:

It require large space

Design is complicated

It having No. of parts

Maintenance is high


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Mechanical efficiency less.

APPLICATIONS PETROL ENGINE:

Road vehicles (i.e., Bus, motor cycle, truck) Air craft

Locomotive

Silent Generators

Civil engineering equipments (i.e., Scraper, Lorry)

CONCLUSION:

In four strokes petrol engine are explained about the classification

and working principle of four stroke petrol engine and then advantages

and disadvantages of four stroke petrol engine. It is very efficiency other

than engines, quit operation and limitation of fuel is less consume and

give more efficiency.

*****


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GENERAL PRESENTATION

ENVIRONMENTAL POLLUTION

INTRODUCTION:

Environmental pollution may be defined as, the unfavorable

alternation of our surroundings. It changes the quality of air, water and

land with the health of human and other life on earth.

Pollution are of different kinds depending on the nature of pollutant

generated from different sources.

Example:

Industry, automobiles, thermal power plants, farming, nuclear

reactors, generate different types of pollution to air, water bodies and

land.

TYPES OF POLLUTANTS:

Biodegradable pollutants

Non-degradable pollutants

CLASSIFICATION OF POLLUTANTS:

The different kinds of pollution that affects the environment are,

Air Pollution

Water Pollution

Soil Pollution

Marine Pollution Noise Pollution


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Thermal Pollution

Nuclear Pollution

NOISE POLLUTION

INTRODUCTION:

Noise pollution is defied as, the unwanted, unpleasant or

disagreeable sound that cause discomfort for all living beings.

The sound intensity is measured in decibel (dB), which is tenth part

of the longest unit Bel. One dB is equal to the faintest sound, a human ear

can hear.

TYPES OF NOISE:

It has been found that environmental noise is doubling every 10

years. Generally noise is described as,

Industrial noise,

Transport noise,

Neighbourhood noise.

1). INDUSTRIAL NOISE:

Highly intense sound or noise pollution is caused by many machines.

There exists a long list of sources of noise pollution including different

machines of numerous factories, industries and mills. Industrial noise,

particularly from mechanical saws and pneumatic drill is unbearable and

is a nuisance to public.


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Recently, it has been observed by the Institute of Oto-Rino

Laryngology, Chennai that enormously increasing industrial pollution has

damage the hearing of about 20% workers.

2). TRANSPORT NOISE:

The main noise, comes from transport. It includes road traffic noise,

rail traffic noise and air craft noise. The number of road vehicles like

motors, scooters, cars, motor cycles, buses, trucks and particularly the

diesel engine vehicles have increased enormously in recent years.

A survey conducted in metropolitan cities has shown that noise level

in Delhi, Bombay and Calcutta is as high as 90 dB. Inhabitants of cities are

subjected to this most annoying form of transport noise which gradually

deafens them.

3). NEIGHBOURHOOD NOISE:

This type of noise includes disturbance from household gadgets and

community. Common noise makers are musical loudspeakers etc., Ever

since the industrial revolution, noise in environment has been doubling

every ten years.

EFFECTS OF NOISE POLLUTION:

Noise pollution affects human health, comfort and efficiency. It

causes contraction of blood vessels, makes the skin pale, lands

to excessive secretion of adrenalin hormone into blood stream

which is responsible for high blood pressure. Blaring sounds have

known to cause mental distress, heart attacks neurological

problems, bith defects and abortion.


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It cause muscles to contract leading to nervous breakdown,

tension etc.,

These adverse reactions are coupled with a change in hormone

content of blood, which in turn increase the rate of heart beat,

constriction of blood vessels, digestive spasms and dilation of

pupil of eye.

It affects health efficiency and behaviour. It may cause damage

to heart, brain, kindneys, liver and may also produce emotional

disturbances.

When exposed to very loud and sudden noise acute damage

occurs to the ear drum.

In addition to serious loss of hearing due to excessive noise,

impulsive noise also causes psychological and pathological

disorders.

Ultrasonic sound can affect the digestive, respiratory, cardio

vascular systems and semicircular canals of the internal ear.

Brain is also adversely affected by loud and sudden noise as that

of jet and aero plane noise etc., people are subjected to

Psychiatric illness.

Recently it has been reported that blood is also thickened by

excessive noises.

It quit surprising that our optical system is also a prey for noise

pollution. Papillary dilation, impairment of night vision and


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decrease in the rate of colour perception are some of its serve

effects.

EFFECTS OF NOISE POLLUTION:

1). SOURCE CONTROL:

This may include source modification such as acoustic treatment to

machine surface, design changes, limiting the operational timings and so

on.

2). TRANSMISSION PATH INTERVENTATION:

This may includes containing the source inside a sound insulating

enclosure, construction of a noise barrier or provision of sound absorbing

materials along the path.

3). RECEPTOR CONTROL:

This includes protection of the receiver by altering the work schedule

or provision of personal protection devices such as ear plugs for operating

noisy machinery. The measure may include dissipation and deflection

methods.

3). OILING:

Proper oiling will reduce the noise from the machines.

PREVENTIVE MEASURES:

Noise can be reduced by prescribing noise limits for vehicular

traffic, ban on honking of horns in certain areas and creation of

silent zones near schools and hospitals and redesigning of

buildings to make them noise proof.


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TECHNICAL

PRESENTATION

WORKING PRINCIPLE OF


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4 STROKE PETROL

ENGINE

GROUP DISCUSSION

ECONOMIC MELT DOWN

Thirumal valavan: Good morning every one, Dear friends, I go

to conversation about today inflation scenario. This economic

melt down disaster totally affects Europe, US and Aisa.last few

months employee and employer suffering & many of us bawling

because Lay-off in jobs.

Vinothkumar: Hai Dudes, if we saw news papers obviously

declared that IT firms face more problems. The main reason is

all outsourcing jobs we are getting from Us and Europe.


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Nandhakumar: vinoth, you are right, US is ruining huge many

in Afghanistan and Iraq war. Even many banking sectors

become lost in present century decade.

Selvarsu: Hai Dears, i am really surprised from your dart

words. We are talking about employee and employers, but what

about the share holders and business mens? Those are fragile

a lot. It is drab life time for every one.

Rajeshkumar: Hi guys am happy to observe that all of your

knowledge and up to date. Since all of you have covered whole

topic. It is touch time for everyone from all over the world. My

suggestion, we earn money better we preserve something in

our future. Thank you all.

ENGLISH COMMUNICATION

SKILLS LAB


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E-MAIL UNOFFICIAL


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LETTER WRITING-UNOFFICIAL


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PAPER PRESENTATION SKILLS


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ONLINE EXAM PAPERS


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TECHNICAL

PRESENTATION

ELECTRIC VEHICLE