Anna University
Revaluation Results for B.E/B.Tech./B.Arch./MBA/MCA/B.Sc./PT B.E - May / June 2009
Degree & Branch: B.E. Mechanical Engineering
result click here
Anna University
Controller of Examinations
B.E / B.Tech - II Semester Revaluation Results - Credit System - May / June 2009
result click here
Wednesday, August 26, 2009
Saturday, August 1, 2009
Annauniversity Latest Results
TANCA -2009 Click here
TNEA-2009 Schedule phase-II
RANK ENQUIRY (TNEA -2009)
Anna University to extend 12 M.E. programmes
Staff Reporter
To industry employees from current academic year onwards
On main campus as well as six constituent colleges
TIRUCHI: Anna University – Tiruchi has decided to extend the 12 M.E. programmes it has been offering for about 600 teachers in affiliated engineering colleges and polytechnic colleges over the past couple of years to industry employees from the current academic year.
The programmes offered under modular-based credit banking scheme will be conducted on the main campus as well as the six constituent colleges at Panrutti, Pattukottai, Thirukuvalai, Ariyalur, Dindigul and Ramanathapuram.
The university is in touch with major industries in Tiruchi region, including BHEL and Ordnance Factory, Golden Rock Railway Workshop and Cethar Vessels.
“We have requested the industries to depute experts for handling the programmes,” the Vice-Chancellor V. Ramachandran told presspersons on Friday.
He saw in the initiative a mechanism for fortifying industry-institution interaction.
M.E. applicants with a first class in B.E. must have worked in the industry for a minimum of one year.
Enrolment
The university expects enrolment of at least 60 candidates on the main campus. The M.E. programmes are being offered in Structural Engineering, Thermal Engineering, CAD/CAM, Manufacturing Engineering, Power Systems Engineering, Embedded System Technologies, Communication Systems, VLSI Design, Computer Science and Engineering, Software Engineering, Pervasive Computing Technologies, and Systems Engineering and Operations Research.
The first batch of college teachers enrolled under the modular-based credit banking scheme will complete M.E. during July next year.
Classes are being held during weekends and vacations without disturbing academic schedule of colleges, the Vice-Chancellor said.
In the coming years, Dr. Ramachandran expected experienced polytechnic teachers who are currently pursuing the M.E. programme of three-year duration to take up teaching positions in engineering colleges.
Anna University Trichy came into existence in January 2007 upon trifurcation of Anna University into three universities, namely, Anna University Chennai, Anna University Trichy, and Anna University Coimbatore. The Anna University, Trichy was formerly known as School of Engineering and Technology or the Bharathidasan Institute of Technology. It was initially a part of the Bharathidasan University. The university is an accredited university with powers to grant affiliations to colleges and universities conducting graduate and post graduate, including diploma course, and is so recognized by the UGC. It is now one of the leading technological universities of India
Anna University Trichy
-->
Motto: Envisaging Quality Education Through Hardwork
Established: 2007
Type: Public
Vice-Chancellor: Dr. V.Ramachandran
Location: Trichy, Tamil Nadu, India
Campus: Trichy-500 acres
Nickname: Rock Fort City - TAU
Affiliations: UGC
Website: www.tau.org.in
Anna University (Tamil: அண்ணா பல்கலைக்கழகம் ISO 15919:aṇṇā palkalaikkaḻakam) is one of India's premier engineering universities. Established in 2007, it offers higher education in Engineering, Technology,Management and Allied Sciences.
Anna University was formed on September 2007 as a unitary type of university. It integrated 2 well-known technical institutions in the city of Trichy (previously known as B.I.T), the oldest of which was the School of Engg. & Technology, started in 1999. Trichy Anna University Technology (TAU) was the original name used in 2007.In December 2007, it was converted into an affiliating university, with almost all engineering colleges in the district of South under its fold and also absorbing all the 2 government engineering colleges in Tamil Nadu as its constituent colleges. Anna University, one of the premier technical institutions in the country, Is committed to ensuring transfer of knowledge of the highest order from teachers to students. The transformation of classroom technology from hardware into software related tools for teaching and learning depends on knowledgeable and dedicalod machers who have core-technology competencies and skills. Anna University - Trichy can proudly boast of such teachers who are very knowledgeable and who serve (lie cause of education with great sincerity and dedication.
The University with its infrastructure facilities existed has started growing and raised to the standards of Higher Education and has worldwide recognition in the field of Engineering, Technology and Applied Sciences. Anna University has departments of Engineering, Technology and Applied sciences, about 51 self financing colleges and 2 Government College located in the south districts of Tamil Nadu.
Contents
[hide]
* 1 Campus
* 2 Department Of Management Studies
* 3 Aided and affiliated colleges
* 4 MPN-08 Medical Pharmaceutical Nanotechnology
* 5 External links
[edit] Campus
Anna University Trichy Campus
The University's main campus is situated in the southern part of Trichy and extends over 500 acres (2.0 km2) adjoining the Mandayur and the Palkalai perur. It contains the Bharathidasan Institute of Technology. The campus also houses Eight technical departments of the B.I.T
[edit] Department Of Management Studies
The Department Of Management Studies has been started (2008 - 2009 academic year) in Anna University. It has regular and Integrated MBA courses in Main Campus. The specialisations available are Finance, HR, Marketing, System & Operations. This department conducts an international seminar on Applications of Operations Research in Managementon May last week. Details on http://www.tau.edu.in/~icorem/index.html
[edit] Aided and affiliated colleges
The Anna University Amendment Act of 2007 brought almost all Engineering colleges in South under the University. This includes 2 Government Engineering colleges, 1 government-aided private institutions, and 49 Self-Financing Colleges.
* List of Colleges under Anna University Trichy
[edit] MPN-08 Medical Pharmaceutical Nanotechnology
This conference cum workshop is organized to
* Educate, learn, and share the knowledge on the principles, theory and concept of basic nanotechnology and its applications in medical and other related fields.
* Promote and develop the research work in this area by having hands on experience in sophisticated instruments. Ξ Spotlight cutting-edge technologies in nanomedicine
* Integrate leading academicians, researchers, beginners, investors, industrialists and innovators in this related area.MPN-08 webpage
[edit] External links
* Anna University Trichy
* [1]
* Anna University Chennai
* Anna University Coimbatore
* School of Engineering & Technology, Trichy
* Biotech Students E-book centre
ALL RIGHT RESEVERED BY WIX TEAM
Annauniversity Latest Results
TANCA -2009 Click here
TNEA-2009 Schedule phase-II
RANK ENQUIRY (TNEA -2009)
Anna University to extend 12 M.E. programmes
Staff Reporter
To industry employees from current academic year onwards
On main campus as well as six constituent colleges
TIRUCHI: Anna University – Tiruchi has decided to extend the 12 M.E. programmes it has been offering for about 600 teachers in affiliated engineering colleges and polytechnic colleges over the past couple of years to industry employees from the current academic year.
The programmes offered under modular-based credit banking scheme will be conducted on the main campus as well as the six constituent colleges at Panrutti, Pattukottai, Thirukuvalai, Ariyalur, Dindigul and Ramanathapuram.
The university is in touch with major industries in Tiruchi region, including BHEL and Ordnance Factory, Golden Rock Railway Workshop and Cethar Vessels.
“We have requested the industries to depute experts for handling the programmes,” the Vice-Chancellor V. Ramachandran told presspersons on Friday.
He saw in the initiative a mechanism for fortifying industry-institution interaction.
M.E. applicants with a first class in B.E. must have worked in the industry for a minimum of one year.
Enrolment
The university expects enrolment of at least 60 candidates on the main campus. The M.E. programmes are being offered in Structural Engineering, Thermal Engineering, CAD/CAM, Manufacturing Engineering, Power Systems Engineering, Embedded System Technologies, Communication Systems, VLSI Design, Computer Science and Engineering, Software Engineering, Pervasive Computing Technologies, and Systems Engineering and Operations Research.
The first batch of college teachers enrolled under the modular-based credit banking scheme will complete M.E. during July next year.
Classes are being held during weekends and vacations without disturbing academic schedule of colleges, the Vice-Chancellor said.
In the coming years, Dr. Ramachandran expected experienced polytechnic teachers who are currently pursuing the M.E. programme of three-year duration to take up teaching positions in engineering colleges.
Anna University Trichy came into existence in January 2007 upon trifurcation of Anna University into three universities, namely, Anna University Chennai, Anna University Trichy, and Anna University Coimbatore. The Anna University, Trichy was formerly known as School of Engineering and Technology or the Bharathidasan Institute of Technology. It was initially a part of the Bharathidasan University. The university is an accredited university with powers to grant affiliations to colleges and universities conducting graduate and post graduate, including diploma course, and is so recognized by the UGC. It is now one of the leading technological universities of India
Anna University Trichy
-->
Motto: Envisaging Quality Education Through Hardwork
Established: 2007
Type: Public
Vice-Chancellor: Dr. V.Ramachandran
Location: Trichy, Tamil Nadu, India
Campus: Trichy-500 acres
Nickname: Rock Fort City - TAU
Affiliations: UGC
Website: www.tau.org.in
Anna University (Tamil: அண்ணா பல்கலைக்கழகம் ISO 15919:aṇṇā palkalaikkaḻakam) is one of India's premier engineering universities. Established in 2007, it offers higher education in Engineering, Technology,Management and Allied Sciences.
Anna University was formed on September 2007 as a unitary type of university. It integrated 2 well-known technical institutions in the city of Trichy (previously known as B.I.T), the oldest of which was the School of Engg. & Technology, started in 1999. Trichy Anna University Technology (TAU) was the original name used in 2007.In December 2007, it was converted into an affiliating university, with almost all engineering colleges in the district of South under its fold and also absorbing all the 2 government engineering colleges in Tamil Nadu as its constituent colleges. Anna University, one of the premier technical institutions in the country, Is committed to ensuring transfer of knowledge of the highest order from teachers to students. The transformation of classroom technology from hardware into software related tools for teaching and learning depends on knowledgeable and dedicalod machers who have core-technology competencies and skills. Anna University - Trichy can proudly boast of such teachers who are very knowledgeable and who serve (lie cause of education with great sincerity and dedication.
The University with its infrastructure facilities existed has started growing and raised to the standards of Higher Education and has worldwide recognition in the field of Engineering, Technology and Applied Sciences. Anna University has departments of Engineering, Technology and Applied sciences, about 51 self financing colleges and 2 Government College located in the south districts of Tamil Nadu.
Contents
[hide]
* 1 Campus
* 2 Department Of Management Studies
* 3 Aided and affiliated colleges
* 4 MPN-08 Medical Pharmaceutical Nanotechnology
* 5 External links
[edit] Campus
Anna University Trichy Campus
The University's main campus is situated in the southern part of Trichy and extends over 500 acres (2.0 km2) adjoining the Mandayur and the Palkalai perur. It contains the Bharathidasan Institute of Technology. The campus also houses Eight technical departments of the B.I.T
[edit] Department Of Management Studies
The Department Of Management Studies has been started (2008 - 2009 academic year) in Anna University. It has regular and Integrated MBA courses in Main Campus. The specialisations available are Finance, HR, Marketing, System & Operations. This department conducts an international seminar on Applications of Operations Research in Managementon May last week. Details on http://www.tau.edu.in/~icorem/index.html
[edit] Aided and affiliated colleges
The Anna University Amendment Act of 2007 brought almost all Engineering colleges in South under the University. This includes 2 Government Engineering colleges, 1 government-aided private institutions, and 49 Self-Financing Colleges.
* List of Colleges under Anna University Trichy
[edit] MPN-08 Medical Pharmaceutical Nanotechnology
This conference cum workshop is organized to
* Educate, learn, and share the knowledge on the principles, theory and concept of basic nanotechnology and its applications in medical and other related fields.
* Promote and develop the research work in this area by having hands on experience in sophisticated instruments. Ξ Spotlight cutting-edge technologies in nanomedicine
* Integrate leading academicians, researchers, beginners, investors, industrialists and innovators in this related area.MPN-08 webpage
[edit] External links
* Anna University Trichy
* [1]
* Anna University Chennai
* Anna University Coimbatore
* School of Engineering & Technology, Trichy
* Biotech Students E-book centre
ALL RIGHT RESEVERED BY WIX TEAM
english Question paper I year annual pattern
ANNA UNIVERSITY CHENNAI :: CHENNAI - 600 025 BE / B.TECH. DEGREE EXAMINATIONS - I YEAR ANNUAL PATTERN
MODEL QUESTION PAPER
HS1X01 - TECHNICAL ENGLISH
(Common to all Branches of Engineering and Technology) Regulation 2004
Time : Three Hours Maximum Marks :100
Answer All Questions
PART A 10 X 2 =20
1. Match the words in column A with their meanings in column B: 4 x % = 2
A B
a. abundant i. rise
b. escalate ii. reach its highest point
c. culminate iii. strikingly grand
d. spectacular iv. plenty
2. Expand the following verbs into nouns by adding suitable suffixes: 4 x % = 2
a. protect b. attract
c. purify d. deplete
3. Fill in the blanks with suitable tense forms of the verbs given in bracket: 4 x % = 2
a. The government_(give) more attention to the development of dry
land now. A programme_(launch) for rain water harvesting in farm
lands.
b. It_(rain) since morning and it_(stop) only an hour ago.
4. Expand the following compound words: 4 x % = 2
a. ozone depletion b. network cable
c. petrol engine d. wind power
5. Fill in the blanks with the comparative forms of the adjectives given in brackets:
4 x % = 2
a. Lead is_(heavy) than Aluminium.
b. Platinum is_(precious) than silver.
c. Ravi is_(tall) than Suraj.
d. Computer works_(fast) than calculator.
1
6. Change the following sentences into passive forms:
2 x 1=2
a. The Electricity board is laying cables in every nook and corner of the city.
b. The social welfare organisation gave a gift worth Rs.1000 to all Self Help Groups.
7. Join the following pairs of sentences by using appropriate cause
and effect expressions like because, because of, due to etc. 2 x 1=2
a. The price of petrol has gone up. The essential commodities have become costlier.
b. There is a significant lacuna in today's education. There is a lack of industry and academia collaboration.
8. Fill in the blanks with suitable prepositions: 4 x % = 2
Some_the major themes dealt__science fiction are
space travel_and_other planets, solar systems and galaxies;
exploration settlement and exploitation_other worlds; encounters_
or_extra terrestrial life forms.
9. Write a sentence definition for any 2 of the following : 2 x 1=2
a. a dam
b. a library
c. a computer virus
10. Edit the following passage by correcting mistakes in spelling, grammar & punctuation: 2 x 1=2
Science fiction are one of the most popular form of litereture. It has a very wide reeding public its writers all over the world is trying to produse it.
PART B
ANSWER ALL QUESTIONS 5 x 16 = 80
11. Read the following passage carefully and answer the questions that follow:
11. Read the following passage and answer the questions that follow it.
The latest buzz word in the continuing debate about the environment is 'sustainable management - that means using plants and animals for our own benefit, but ensuring that enough are left alive to guarantee the survival of the species. This sounds good, but is it
2
practical in reality? In spite of years of scientific research, no-one really knows how much damage human beings are doing to their environment. We know that they are responsible for many problems ranging from global warming to ozone depletion, and there is no doubt that they have a devastating effect on animal and plant life on Earth.
About 50,000 animal and plant species are becoming extinct every year. All species depend in some way on one another for survival. If you remove one species from this complex web of interrelationships, we have little idea of the repercussions on the ecosystem in general.
What makes things more complicated is the fact that unlike global warming - which, if the political will was there, could be reduced by cutting gas emissions - preserving bio¬diversity remains a difficult dilemma.
There are also questions about whether sustainable management is practical as far as protecting areas of great bio-diversity such as the world's tropical forests are concerned. In theory, the principle should be the same as with elephants; i.e. to cut a number of trees, but not so many as to completely destroy the forest.
Sustainable management of trees requires controls on the number of trees which are cut down as well as investment in replacing them. Most tropical forests exist in poor countries which depend on logging to make money. For most loggers in these countries, making money means cutting down as many trees as possible in the shortest time. The prices of trees remains stable, varying by 4-5% annually, whereas interest rates in most developing countries can create 15% or more in returns. It therefore makes little sense, and certainly no economic sense, to delay tree-felling.
One solution could be to insist that wood comes from sustainably managed forests. In theory, consumers would buy only this wood and force logging companies to go "green" or else out of business. Unfortunately, unrestricted logging is more profitable than wood from sustainably managed forests which would cost up to 5 times more to control. Consumers would not be prepared to pay the extra sum just to protect the environment.
The sad fact is that there is no practical solution to protecting vegetation and wildlife of tropical forests in the future. It is estimated that these forests contain anything from 50 to 90 per cent of all animals and plant species on Earth. In one study of a 5km square area of rain forest in Peru, for example, scientists counted 1,300 species of butterfly and 600 species of bird. In the entire USA only 400 species of butterfly and 700 species of bird have been recorded. Sustainable management represents a gigantic experiment. If this doesn't work, we can't move to another planet to escape. It's a case of one planet, one experiment!
A. Complete the following statements choosing from one of the given alternatives.(6 x 1
= 6)
1. The extent of the damage being inflicted on our environment...
a. can be estimated by years of scientific research.
b. is being calculated by scientific research exactly.
c. is impossible to assess despite years of scientific research.
d. is, thanks to years of scientific research, on the decrease.
3
2. The term 'sustainable management' means using plants and animals for our own benefit, but..
a. assuring none are left alive to guarantee the survival of the species.
b. making sure that enough are left alive to guarantee the survival of the species.
c. take care of the survival of the species.
d. make certain they are not all used up.
3. If a particular species becomes extinct...
a. we know exactly what effect it will have on our ecosystem.
b. we have little knowledge about its effects on our ecosystem.
c. it has no relationship with other species in our ecosystem.
d. its removal from the ecosystem will have no repercussions.
4. Preserving bio-diversity in our ecosystem...
a. is less complicated than reducing global warming.
b. can be resolved politically, just like global warming.
c. is not simply a political dilemma to be resolved like global warming.
d. can be resolved only by cutting gas emissions.
5. Applying the theory of sustainable management to the protection of tropical forests...
a. is creating worries and doubts in people's minds, especially as regards its feasibility.
b. means you can cut as many trees as you want without destroying the forest.
c. is a practical and economical way of protecting them.
d. is exactly the same as that applied to protecting elephants.
6. It is vital to protect the wildlife of tropical forests...
a. because there are over 700 species of bird recorded in the whole of the USA.
b. because sustainable management offers a real, practical solution.
c. because scientists couldn't find as many species of butterfly or bird in the Peruvian rainforests.
d. because of the wide variety and quantity of species of wildlife that inhabit them.
B. Choose the option that best represents the meaning of the following words as they are sued in the text.(6 x 1 = 6)
1. depletion
a. fatigue c. deficiency
b. reduction d. emptiness
2. repercussion
a. sequence c. consequence
b. purpose d. conclusion
3. dilemma
a. predicament
b. hesitation
c. status
d. contingency
4
4. returns
a. grant
b. inheritance
c. acquisition
d. gain
5. devastating
a. extreme c. disastrous
b. diverse d. dangerous
6. complex
a. difficult c. hard
b. intricate d. tough
C. State whether the following statements are true or false. (4 x 1 = 4)
a. Most of the tropical forests are located in economically backward countries.
b. Tropical forests house less than half of the plant and animal species on Earth.
c. Human beings are not really responsible for the damage to the environment.
d. Wood from sustainably managed forests is cheaper than wood from forests where unrestricted logging is permitted.
12. (a) Write a set of eight recommendations to preserve underground water resources.
(OR)
(b) Write a set of eight instructions to protect the ozone layer.
13. (a) Respond to the following advertisement with your CV enclosed.
V
TVS - LUCAS requires PRODUCTION ENGINEERS
Engineering graduates (Mechanical / Electronic / Electrical / Civil) preferably with few years experience in production would be preferred. Candidates should have good communication skills with leadership ability. They also should have sound technical knowledge in their subject area.
Salary is not a constraint for deserving candidates.
Interested candidates should send your application with CV to The Personnel Manager TVS -LUCAS
Hosur
Karnataka
OR
(b) Write a letter to the Editor of your local newspaper about the problems in using city public transport buses. List out different problems you have encountered while travelling in buses and give few suggestions to improve the travel.
5
14. a. Choose any One set of the following jumbled sentences and rearrange them in the right sequential order:
i. The aim is to find out how much of these raw materials could be provided if a plant for recycling waste were built just outside the city.
ii. All these ideas are already being made use of, but what is new is the idea of combining them on such a large scale in a single plant designed to recycle most types of waste.
iii. A new concept of recycling waste is taking shape in the form of a project.
iv. This plant would recycle not only metal such as steel, lead and copper, but also paper and rubber as well.
v. The latest project is to take a city of around half a million inhabitants and discover exactly what raw materials go into it and what goes out.
vi. Methods have been discovered for example for removing the ink from newsprint.
vii. This would enable the paper to be used again.
viii. Also through these methods, valuable oils and gases can be obtained from old motorcars and tyres from these methods.
(OR)
b. i. Human beings can walk, run, swim, and so on, but robots are usually confined to one place.
ii. Another advantage human beings have is the way the same person can do jobs as different as making a cup of tea or designing a new machine.
iii. It is a known fact robots have many advantages over human beings.
iv. Taking into account all these factors, it should be remembered that robots owe their existence, to human beings.
v. However, it is also true that humans can do many things that robots can't.
vi. Even if the robots are able to move, they can do, only in a very limited way.
vii. For example, humans can carry out a task without having to be told exactly how to do it; they don't have to be programmed.
viii. And unlike robots, people can know whether what they are doing is good or bad, and whether it is boring or interesting.
15. Write an essay on any one of the topics in 300 words:
(a) Comment on the need to develop communication skills in the fast changing and
competitive world we live in.
OR
(b) Advantages and disadvantages of using internet.
6
MODEL QUESTION PAPER
HS1X01 - TECHNICAL ENGLISH
(Common to all Branches of Engineering and Technology) Regulation 2004
Time : Three Hours Maximum Marks :100
Answer All Questions
PART A 10 X 2 =20
1. Match the words in column A with their meanings in column B: 4 x % = 2
A B
a. abundant i. rise
b. escalate ii. reach its highest point
c. culminate iii. strikingly grand
d. spectacular iv. plenty
2. Expand the following verbs into nouns by adding suitable suffixes: 4 x % = 2
a. protect b. attract
c. purify d. deplete
3. Fill in the blanks with suitable tense forms of the verbs given in bracket: 4 x % = 2
a. The government_(give) more attention to the development of dry
land now. A programme_(launch) for rain water harvesting in farm
lands.
b. It_(rain) since morning and it_(stop) only an hour ago.
4. Expand the following compound words: 4 x % = 2
a. ozone depletion b. network cable
c. petrol engine d. wind power
5. Fill in the blanks with the comparative forms of the adjectives given in brackets:
4 x % = 2
a. Lead is_(heavy) than Aluminium.
b. Platinum is_(precious) than silver.
c. Ravi is_(tall) than Suraj.
d. Computer works_(fast) than calculator.
1
6. Change the following sentences into passive forms:
2 x 1=2
a. The Electricity board is laying cables in every nook and corner of the city.
b. The social welfare organisation gave a gift worth Rs.1000 to all Self Help Groups.
7. Join the following pairs of sentences by using appropriate cause
and effect expressions like because, because of, due to etc. 2 x 1=2
a. The price of petrol has gone up. The essential commodities have become costlier.
b. There is a significant lacuna in today's education. There is a lack of industry and academia collaboration.
8. Fill in the blanks with suitable prepositions: 4 x % = 2
Some_the major themes dealt__science fiction are
space travel_and_other planets, solar systems and galaxies;
exploration settlement and exploitation_other worlds; encounters_
or_extra terrestrial life forms.
9. Write a sentence definition for any 2 of the following : 2 x 1=2
a. a dam
b. a library
c. a computer virus
10. Edit the following passage by correcting mistakes in spelling, grammar & punctuation: 2 x 1=2
Science fiction are one of the most popular form of litereture. It has a very wide reeding public its writers all over the world is trying to produse it.
PART B
ANSWER ALL QUESTIONS 5 x 16 = 80
11. Read the following passage carefully and answer the questions that follow:
11. Read the following passage and answer the questions that follow it.
The latest buzz word in the continuing debate about the environment is 'sustainable management - that means using plants and animals for our own benefit, but ensuring that enough are left alive to guarantee the survival of the species. This sounds good, but is it
2
practical in reality? In spite of years of scientific research, no-one really knows how much damage human beings are doing to their environment. We know that they are responsible for many problems ranging from global warming to ozone depletion, and there is no doubt that they have a devastating effect on animal and plant life on Earth.
About 50,000 animal and plant species are becoming extinct every year. All species depend in some way on one another for survival. If you remove one species from this complex web of interrelationships, we have little idea of the repercussions on the ecosystem in general.
What makes things more complicated is the fact that unlike global warming - which, if the political will was there, could be reduced by cutting gas emissions - preserving bio¬diversity remains a difficult dilemma.
There are also questions about whether sustainable management is practical as far as protecting areas of great bio-diversity such as the world's tropical forests are concerned. In theory, the principle should be the same as with elephants; i.e. to cut a number of trees, but not so many as to completely destroy the forest.
Sustainable management of trees requires controls on the number of trees which are cut down as well as investment in replacing them. Most tropical forests exist in poor countries which depend on logging to make money. For most loggers in these countries, making money means cutting down as many trees as possible in the shortest time. The prices of trees remains stable, varying by 4-5% annually, whereas interest rates in most developing countries can create 15% or more in returns. It therefore makes little sense, and certainly no economic sense, to delay tree-felling.
One solution could be to insist that wood comes from sustainably managed forests. In theory, consumers would buy only this wood and force logging companies to go "green" or else out of business. Unfortunately, unrestricted logging is more profitable than wood from sustainably managed forests which would cost up to 5 times more to control. Consumers would not be prepared to pay the extra sum just to protect the environment.
The sad fact is that there is no practical solution to protecting vegetation and wildlife of tropical forests in the future. It is estimated that these forests contain anything from 50 to 90 per cent of all animals and plant species on Earth. In one study of a 5km square area of rain forest in Peru, for example, scientists counted 1,300 species of butterfly and 600 species of bird. In the entire USA only 400 species of butterfly and 700 species of bird have been recorded. Sustainable management represents a gigantic experiment. If this doesn't work, we can't move to another planet to escape. It's a case of one planet, one experiment!
A. Complete the following statements choosing from one of the given alternatives.(6 x 1
= 6)
1. The extent of the damage being inflicted on our environment...
a. can be estimated by years of scientific research.
b. is being calculated by scientific research exactly.
c. is impossible to assess despite years of scientific research.
d. is, thanks to years of scientific research, on the decrease.
3
2. The term 'sustainable management' means using plants and animals for our own benefit, but..
a. assuring none are left alive to guarantee the survival of the species.
b. making sure that enough are left alive to guarantee the survival of the species.
c. take care of the survival of the species.
d. make certain they are not all used up.
3. If a particular species becomes extinct...
a. we know exactly what effect it will have on our ecosystem.
b. we have little knowledge about its effects on our ecosystem.
c. it has no relationship with other species in our ecosystem.
d. its removal from the ecosystem will have no repercussions.
4. Preserving bio-diversity in our ecosystem...
a. is less complicated than reducing global warming.
b. can be resolved politically, just like global warming.
c. is not simply a political dilemma to be resolved like global warming.
d. can be resolved only by cutting gas emissions.
5. Applying the theory of sustainable management to the protection of tropical forests...
a. is creating worries and doubts in people's minds, especially as regards its feasibility.
b. means you can cut as many trees as you want without destroying the forest.
c. is a practical and economical way of protecting them.
d. is exactly the same as that applied to protecting elephants.
6. It is vital to protect the wildlife of tropical forests...
a. because there are over 700 species of bird recorded in the whole of the USA.
b. because sustainable management offers a real, practical solution.
c. because scientists couldn't find as many species of butterfly or bird in the Peruvian rainforests.
d. because of the wide variety and quantity of species of wildlife that inhabit them.
B. Choose the option that best represents the meaning of the following words as they are sued in the text.(6 x 1 = 6)
1. depletion
a. fatigue c. deficiency
b. reduction d. emptiness
2. repercussion
a. sequence c. consequence
b. purpose d. conclusion
3. dilemma
a. predicament
b. hesitation
c. status
d. contingency
4
4. returns
a. grant
b. inheritance
c. acquisition
d. gain
5. devastating
a. extreme c. disastrous
b. diverse d. dangerous
6. complex
a. difficult c. hard
b. intricate d. tough
C. State whether the following statements are true or false. (4 x 1 = 4)
a. Most of the tropical forests are located in economically backward countries.
b. Tropical forests house less than half of the plant and animal species on Earth.
c. Human beings are not really responsible for the damage to the environment.
d. Wood from sustainably managed forests is cheaper than wood from forests where unrestricted logging is permitted.
12. (a) Write a set of eight recommendations to preserve underground water resources.
(OR)
(b) Write a set of eight instructions to protect the ozone layer.
13. (a) Respond to the following advertisement with your CV enclosed.
V
TVS - LUCAS requires PRODUCTION ENGINEERS
Engineering graduates (Mechanical / Electronic / Electrical / Civil) preferably with few years experience in production would be preferred. Candidates should have good communication skills with leadership ability. They also should have sound technical knowledge in their subject area.
Salary is not a constraint for deserving candidates.
Interested candidates should send your application with CV to The Personnel Manager TVS -LUCAS
Hosur
Karnataka
OR
(b) Write a letter to the Editor of your local newspaper about the problems in using city public transport buses. List out different problems you have encountered while travelling in buses and give few suggestions to improve the travel.
5
14. a. Choose any One set of the following jumbled sentences and rearrange them in the right sequential order:
i. The aim is to find out how much of these raw materials could be provided if a plant for recycling waste were built just outside the city.
ii. All these ideas are already being made use of, but what is new is the idea of combining them on such a large scale in a single plant designed to recycle most types of waste.
iii. A new concept of recycling waste is taking shape in the form of a project.
iv. This plant would recycle not only metal such as steel, lead and copper, but also paper and rubber as well.
v. The latest project is to take a city of around half a million inhabitants and discover exactly what raw materials go into it and what goes out.
vi. Methods have been discovered for example for removing the ink from newsprint.
vii. This would enable the paper to be used again.
viii. Also through these methods, valuable oils and gases can be obtained from old motorcars and tyres from these methods.
(OR)
b. i. Human beings can walk, run, swim, and so on, but robots are usually confined to one place.
ii. Another advantage human beings have is the way the same person can do jobs as different as making a cup of tea or designing a new machine.
iii. It is a known fact robots have many advantages over human beings.
iv. Taking into account all these factors, it should be remembered that robots owe their existence, to human beings.
v. However, it is also true that humans can do many things that robots can't.
vi. Even if the robots are able to move, they can do, only in a very limited way.
vii. For example, humans can carry out a task without having to be told exactly how to do it; they don't have to be programmed.
viii. And unlike robots, people can know whether what they are doing is good or bad, and whether it is boring or interesting.
15. Write an essay on any one of the topics in 300 words:
(a) Comment on the need to develop communication skills in the fast changing and
competitive world we live in.
OR
(b) Advantages and disadvantages of using internet.
6
maths Question paper I year annual pattern
-1 1 "
5 -1
-1 3
ANNA UNIVERSITY CHENNAI :: CHENNAI - 600 025
B.E / B.TECH. DEGREE EXAMINATIONS - I YEAR ANNUAL PATTERN
MODEL QUESTION PAPER
MA 1X01 - ENGINEERING MATHEMATICS - I
(Common to all Branches of Engineering and Technology)
Regulation 2004
Time : 3 Hrs Maximum: 100 Marks
Answer all Questions
PART - A (10 x 2 = 20 Marks)
1. Find the sum and product of the eigen values of the matrix
2. If x = r cose, y = r sine, find d(r ,e)
d(x, y)
3. Solve (D3+D2+4D+4)y = 0.
4. The differential equation for a circuit in which self-inductance L and capacitance C
d2i i _
neutralize each other is L —— +— = 0. Find the current i as a function of t.
dt2 C
5. Find, by double integration, the area of circle x2+y2 = a2.
6. Prove that curl grad § = o.
7. State the sufficient conditions for a function f(z) to be analytic.
8. State Cauchy's integral theorem.
9. Find the Laplace transform of unit step function at t = a.
10. Find L-1 [ 2 s + 3— ].
s2 + 4s +13
1
PART - B (5 x 16 = 80 marks)
11.(a).(i). Verify Cayley-Hamilton theorem for the matrix A = Hence find its inverse.
( 7 2 - 2 ^ - 6 -1 2 6 2 -1,
(8)
(ii). Find the radius of curvature at any point 't' on the curve x = a (cost + t sint), y = a(sint-t cost)
(8)
(b).(i). Diagonalise the matrix
(OR)
8 - 6 2
-6 7 - 4
2 - 4 3
by orthogonal transformation. (8).
(ii). A rectangular box open at the top is to have volume of 32 c.c. Find the dimensions of the box requiring least material for its construction, by Lagrange's multiplier method. (8).
d2 y
dy
12(a). (i). Solve (3x+2)2 + 3(3x+2) — - 36y = 3x2+4x+1
ax
dx
(8)
2 1
(ii). For the electric circuit gover ned by (LD2+RD+—) q = E where
C
d
D = — if L = 1 henry, R = 100 Ohms, C = 10-4 farad and E = 100 volts, dt
dq
q = — = 0 when t = 0, find the charge q and the current i. (8)
dt
(OR)
dx
(b).(i). Solve — + 2 x + 3y = 0,
dt
dy r. 3x+^r + 2 y = 2e dt
2t
(8)
2
(ii). The differential equation satisfied by a beam uniformly loaded
(w kg/ metre) with one end fixed and the second end subjected
d2y 1 2 to tensile force P is given by EI —— = Py--wx . Show that
dx2 2
dy
the elastic curve for the beam with conditions y = 0 = — at x = 0 is
dx
w wx2 2 P
given by y =-— (1-coshnx) +-where n = — (8)
Pn2 2P EI
a 2 a - x
13. a.(i). Change the order of integration in XX xydx dy and hence evaluate
o xt
a
the same. (8).
(ii). Prove that F = (y2cosx + z3)i +(2ysinx-4) j +3xz2k is irrotational
and find its scalar potential. (8)
(OR)
aa
b.(i). By changing to polar co-ordinates, evaluate ff x dxdy_ (8)
J J 12 2
oyVx +y
(ii). Verify Gauss divergence theorem for F = 4xzi - y2 j + yzk, taken over the cube bounded by x = 0, x = 1, y = 0, y = 1, z = 0 and z = 1. (8)
14. (a).(i). If f(z) is an analytic function, prove that
( d2 d2 ^
vdx^ +dy2 j
| f(z)|2 = 4|f '(z)|2. (8).
(ii). Find the Laurent's series expansion of the function
f(z) = 7—!)(~63)-1 2) in the region 3 < |z+2| < 5. (8).
(OR)
3
(b).(i). Find the bilinear map which maps -1, 0, 1 of the z-plane onto 1 of the w-plane. Show that the upper half of the z-plane maps onto the interior of the unit circle | w | = 1. (8).
7 x2 dx
(ii). Using contour integration, evaluate I —2-2-2-2~~ (8).
0 (x + a )(x + b )
1 — cos at
15.(a) (i). Find the Laplace transform of t sint sinh2t and- (8)
1
(ii). Using convolution theorem, find L-1 (s 2 + a 2)2 (8)
(OR)
(b).(i).Find the Laplace transform of the function
f t, 0 < t
f (t) = \ (8) [2n — t, n
(ii).Using Laplace transform technique, solve
dy dy —t- +
—2^ + 2— + 5y = e sin t,
d d
y = 0,dy = 0 whent = 0
dt
(8)
4
5 -1
-1 3
ANNA UNIVERSITY CHENNAI :: CHENNAI - 600 025
B.E / B.TECH. DEGREE EXAMINATIONS - I YEAR ANNUAL PATTERN
MODEL QUESTION PAPER
MA 1X01 - ENGINEERING MATHEMATICS - I
(Common to all Branches of Engineering and Technology)
Regulation 2004
Time : 3 Hrs Maximum: 100 Marks
Answer all Questions
PART - A (10 x 2 = 20 Marks)
1. Find the sum and product of the eigen values of the matrix
2. If x = r cose, y = r sine, find d(r ,e)
d(x, y)
3. Solve (D3+D2+4D+4)y = 0.
4. The differential equation for a circuit in which self-inductance L and capacitance C
d2i i _
neutralize each other is L —— +— = 0. Find the current i as a function of t.
dt2 C
5. Find, by double integration, the area of circle x2+y2 = a2.
6. Prove that curl grad § = o.
7. State the sufficient conditions for a function f(z) to be analytic.
8. State Cauchy's integral theorem.
9. Find the Laplace transform of unit step function at t = a.
10. Find L-1 [ 2 s + 3— ].
s2 + 4s +13
1
PART - B (5 x 16 = 80 marks)
11.(a).(i). Verify Cayley-Hamilton theorem for the matrix A = Hence find its inverse.
( 7 2 - 2 ^ - 6 -1 2 6 2 -1,
(8)
(ii). Find the radius of curvature at any point 't' on the curve x = a (cost + t sint), y = a(sint-t cost)
(8)
(b).(i). Diagonalise the matrix
(OR)
8 - 6 2
-6 7 - 4
2 - 4 3
by orthogonal transformation. (8).
(ii). A rectangular box open at the top is to have volume of 32 c.c. Find the dimensions of the box requiring least material for its construction, by Lagrange's multiplier method. (8).
d2 y
dy
12(a). (i). Solve (3x+2)2 + 3(3x+2) — - 36y = 3x2+4x+1
ax
dx
(8)
2 1
(ii). For the electric circuit gover ned by (LD2+RD+—) q = E where
C
d
D = — if L = 1 henry, R = 100 Ohms, C = 10-4 farad and E = 100 volts, dt
dq
q = — = 0 when t = 0, find the charge q and the current i. (8)
dt
(OR)
dx
(b).(i). Solve — + 2 x + 3y = 0,
dt
dy r. 3x+^r + 2 y = 2e dt
2t
(8)
2
(ii). The differential equation satisfied by a beam uniformly loaded
(w kg/ metre) with one end fixed and the second end subjected
d2y 1 2 to tensile force P is given by EI —— = Py--wx . Show that
dx2 2
dy
the elastic curve for the beam with conditions y = 0 = — at x = 0 is
dx
w wx2 2 P
given by y =-— (1-coshnx) +-where n = — (8)
Pn2 2P EI
a 2 a - x
13. a.(i). Change the order of integration in XX xydx dy and hence evaluate
o xt
a
the same. (8).
(ii). Prove that F = (y2cosx + z3)i +(2ysinx-4) j +3xz2k is irrotational
and find its scalar potential. (8)
(OR)
aa
b.(i). By changing to polar co-ordinates, evaluate ff x dxdy_ (8)
J J 12 2
oyVx +y
(ii). Verify Gauss divergence theorem for F = 4xzi - y2 j + yzk, taken over the cube bounded by x = 0, x = 1, y = 0, y = 1, z = 0 and z = 1. (8)
14. (a).(i). If f(z) is an analytic function, prove that
( d2 d2 ^
vdx^ +dy2 j
| f(z)|2 = 4|f '(z)|2. (8).
(ii). Find the Laurent's series expansion of the function
f(z) = 7—!)(~63)-1 2) in the region 3 < |z+2| < 5. (8).
(OR)
3
(b).(i). Find the bilinear map which maps -1, 0, 1 of the z-plane onto 1 of the w-plane. Show that the upper half of the z-plane maps onto the interior of the unit circle | w | = 1. (8).
7 x2 dx
(ii). Using contour integration, evaluate I —2-2-2-2~~ (8).
0 (x + a )(x + b )
1 — cos at
15.(a) (i). Find the Laplace transform of t sint sinh2t and- (8)
1
(ii). Using convolution theorem, find L-1 (s 2 + a 2)2 (8)
(OR)
(b).(i).Find the Laplace transform of the function
f t, 0 < t
f (t) = \ (8) [2n — t, n
(ii).Using Laplace transform technique, solve
dy dy —t- +
—2^ + 2— + 5y = e sin t,
d d
y = 0,dy = 0 whent = 0
dt
(8)
4
chemistry Question paper I year annual pattern
ANNA UNIVERSITY CHENNAI :: CHENNAI - 600 025 BE / B.TECH. DEGREE EXAMINATIONS - I YEAR ANNUAL PATTERN MODEL QUESTION PAPER
CY1X01 ENGINEERING CHEMISTRY
(Common to all Branches of Engineering and Technology) Regulation 2004
Time 3 Hours Answer all the Questions Max Marks: 100
Part A (10 x 2 = 20 Marks)
1. What are abrasive? Name any three natural and artificial abrasives.
2. What are solid lubricants? Name any four solid lubricants.
3. State phase rule. Explain the terms involved in it.
4. State the limitations of phase rule.
5. What is electrochemical series?
6. What is meant by anodizing? Mention two application of anodizing.
7. What is boiler scale? How it is removed?
8. Distinguish between nuclear fission and fusion.
9. What are fuels? How they are classified?
10. Explain Beer-Lamberts law.
Part B (16 x 5 = 80 Marks)
11.a). i. Explain Mohr's scale of hardness and describe the classification of abrasives
with suitable examples. 8 ii. Describe with a neat sketch, the process of compression moldings.
How do you compare the technique with injection molding. 8
OR
b). i. What is pitting corrosion? Explain the mechanism of chemical and
electrochemical corrosion. 8
ii. How is coke manufactured by Otto-Hoffman process? 4
iii. How is petrol manufactured by Fischer -Tropsch's method? 4
12.a). i. Draw the phase diagram of (Pb-Ag) system forming eutectic alloy and label all the phases in the diagram. 8 ii. What is meant by phase diagram? With help of phase diagram explain the following terms (i) triple point (ii) eutectic point. 8
OR
1
b). i. Explain the following in the phase diagram for ice-water-water vapour system. (l)Bivariant system (2) Univariant system (3) Invariant system 8 ii. State the different varieties of brasses and bronze and give their engineering properties and applications. 8
13. a). i. Explain (i) pitting corrosion (ii) stress corrosion 8
ii. What is cathodic protection? How it is done by using impressed current and sacrificial anode? Explain with suitable example. 8
OR
b). i. What are Paints? What are their characteristics? What are fire retardant paints and water repellent paints? 8 ii. Bring out the difference between paints and varnishes and explain the mechanism of drying of paint. 8
14. a). i. Distinguish between hard water and soft water. Describe how the temporary
and permanent hardness of water determined by EDTA titration. 8
ii. What are boiler troubles? How can scale formation be prevented by calgon conditioning? Describe. 8
OR
b). i. Distinguish between softening and demineralization of water. Name any two methods of demineralization of water and explain one briefly. 8 ii. Define the term desalination. Describe with a neat diagram desalination by reverse osmosis process. 8
15. a). i. Describe the manufacture of producer gas? Mention its applications. 8
ii. Define the terms octane number and cetane number. 4
iii. Discuss the anti knocking agents used for petrol. 4
OR
b). i. Describe flue gas analysis by Orsat's apparatus. 8
ii. Differentiate between IR and UV spectrum. 3
iii. Write about the principle and application of flame photometry. 5
2
CY1X01 ENGINEERING CHEMISTRY
(Common to all Branches of Engineering and Technology) Regulation 2004
Time 3 Hours Answer all the Questions Max Marks: 100
Part A (10 x 2 = 20 Marks)
1. What are abrasive? Name any three natural and artificial abrasives.
2. What are solid lubricants? Name any four solid lubricants.
3. State phase rule. Explain the terms involved in it.
4. State the limitations of phase rule.
5. What is electrochemical series?
6. What is meant by anodizing? Mention two application of anodizing.
7. What is boiler scale? How it is removed?
8. Distinguish between nuclear fission and fusion.
9. What are fuels? How they are classified?
10. Explain Beer-Lamberts law.
Part B (16 x 5 = 80 Marks)
11.a). i. Explain Mohr's scale of hardness and describe the classification of abrasives
with suitable examples. 8 ii. Describe with a neat sketch, the process of compression moldings.
How do you compare the technique with injection molding. 8
OR
b). i. What is pitting corrosion? Explain the mechanism of chemical and
electrochemical corrosion. 8
ii. How is coke manufactured by Otto-Hoffman process? 4
iii. How is petrol manufactured by Fischer -Tropsch's method? 4
12.a). i. Draw the phase diagram of (Pb-Ag) system forming eutectic alloy and label all the phases in the diagram. 8 ii. What is meant by phase diagram? With help of phase diagram explain the following terms (i) triple point (ii) eutectic point. 8
OR
1
b). i. Explain the following in the phase diagram for ice-water-water vapour system. (l)Bivariant system (2) Univariant system (3) Invariant system 8 ii. State the different varieties of brasses and bronze and give their engineering properties and applications. 8
13. a). i. Explain (i) pitting corrosion (ii) stress corrosion 8
ii. What is cathodic protection? How it is done by using impressed current and sacrificial anode? Explain with suitable example. 8
OR
b). i. What are Paints? What are their characteristics? What are fire retardant paints and water repellent paints? 8 ii. Bring out the difference between paints and varnishes and explain the mechanism of drying of paint. 8
14. a). i. Distinguish between hard water and soft water. Describe how the temporary
and permanent hardness of water determined by EDTA titration. 8
ii. What are boiler troubles? How can scale formation be prevented by calgon conditioning? Describe. 8
OR
b). i. Distinguish between softening and demineralization of water. Name any two methods of demineralization of water and explain one briefly. 8 ii. Define the term desalination. Describe with a neat diagram desalination by reverse osmosis process. 8
15. a). i. Describe the manufacture of producer gas? Mention its applications. 8
ii. Define the terms octane number and cetane number. 4
iii. Discuss the anti knocking agents used for petrol. 4
OR
b). i. Describe flue gas analysis by Orsat's apparatus. 8
ii. Differentiate between IR and UV spectrum. 3
iii. Write about the principle and application of flame photometry. 5
2
physics Question paper I year annual pattern
ANNA UNIVERSITY CHENNAI :: CHENNAI - 600 025 BE / B.TECH. DEGREE EXAMINATIONS - I YEAR ANNUAL PATTERN MODEL QUESTION PAPER
PH1X01: ENGINEERING PHYSICS
(Common to all Branches of Engineering and Technology) Regulation 2004
Time: 3 Hours Maximum Marks: 100
(Answer all Questions)
PART -A (10x2=20 marks)
1. Noise level inside a room with printer operating is found to be 80 dB. Find the noise level produced by the printer alone, if the background noise without the printer is 73 dB.
2. What is a unit cell? How many lattice parameters are required to describe a cubic lattice?
3. A monochromatic source of light is used to get circular fringes in Michelson's interferometer. When the movable mirror is moved by 0.06 mm, a shift of 200 circular fringes is observed. Find the wavelength of light used?
4. What is the principle of laser and give the important requisites for laser action to take place.
5. State Wiedemann-Franz law.
6. The Fermi energy of Cesium is 1.55 eV. Calculate the number of conduction electrons in 1 cm3 of the metal.
7. With increase in temperature the resistivity of semiconductors decreases, while that of metals increases. Give reasons.
8. Explain isotope effect in superconductors.
9. What are metallic glasses?
10. What are the requirements of good insulating materials?
1
PART -B (5x16 = 80 marks)
11. a) i) Explain the various factors affecting acoustics of buildings and their
remedies. (8)
b) ii) What is magnetostriction effect? With a neat circuit diagram, describe the
production of ultrasonic waves by magnetostriction method. (8)
(or)
b) i) Describe simple cubic, body centered cubic and face centered cubic
structures with examples and calculate the atomic packing density. (12) ii) NaCl crystal has fcc lattice. The density of NaCl is 2.18 g/cm3. Calculate the distance between the sodium and chlorine ions. (Atomic weight of sodium is 23 and atomic weight of chlorine is 35.5). (4)
12. a) i) Describe the construction and working of Michelson's interferometer. Explain the method of determination of wavelength of monochromatic source of light. (12) ii) Explain fibre optic based displacement sensor. (4)
(or)
b) i) With necessary theory explain the construction and working of CO2
laser. (12)
ii) Discuss the classification of optical fibres based of refractive index profile. (4)
13. a) i) Solving Schrodinger's time independent wave equation find the energy
eigenvalues of a particle moving freely inside an one - dimensional box. (12) ii) In a Compton experiment the wavelength of the incident photon is 1. 325A, whereas that of the scattered photon is 1.351 A. Find the angle through which the photon is scattered and also calculate the kinetic energy of the recoiling electron. (4)
(or)
2
b) i) Derive an expression for density of energy states. Obtain an expression for Fermi energy in metals at T = 0 K. (12) ii) Aluminum is a trivalent metal. Its electrical conductivity at room temperature is 3.8x107 Q-1m-1. The atomic weight and density of aluminum are 27 and 2700 kg/m3 respectively. Calculate the mean free path of the conduction electrons in aluminum at room temperature. (4)
14. a) i) Derive an expression for electrical conductivity of an intrinsic semiconductor. Describe the experimental method of determination of bandgap of a semiconductor (16)
(or)
b) i) Explain with a sketch the variation of Fermi level with temperature and doping concentration in an N-type semiconductor . (12) ii) Explain Type I and Type II superconductors. (4)
15. a) i) What is meant by internal field in dielectrics? Obtain Clasius- Mosotti equation and explain how it can be used to determine the dipole moment of polar molecules. (12)
ii)Explain shape memory alloys. (4)
(or)
b) i) Explain the non-destructive testing method of materials by Liquid
penetrant method. (8) ii) Draw the block diagram of ultrasonic flaw detector and explain how it is
used for detecting defects in materials. (8)
3
PH1X01: ENGINEERING PHYSICS
(Common to all Branches of Engineering and Technology) Regulation 2004
Time: 3 Hours Maximum Marks: 100
(Answer all Questions)
PART -A (10x2=20 marks)
1. Noise level inside a room with printer operating is found to be 80 dB. Find the noise level produced by the printer alone, if the background noise without the printer is 73 dB.
2. What is a unit cell? How many lattice parameters are required to describe a cubic lattice?
3. A monochromatic source of light is used to get circular fringes in Michelson's interferometer. When the movable mirror is moved by 0.06 mm, a shift of 200 circular fringes is observed. Find the wavelength of light used?
4. What is the principle of laser and give the important requisites for laser action to take place.
5. State Wiedemann-Franz law.
6. The Fermi energy of Cesium is 1.55 eV. Calculate the number of conduction electrons in 1 cm3 of the metal.
7. With increase in temperature the resistivity of semiconductors decreases, while that of metals increases. Give reasons.
8. Explain isotope effect in superconductors.
9. What are metallic glasses?
10. What are the requirements of good insulating materials?
1
PART -B (5x16 = 80 marks)
11. a) i) Explain the various factors affecting acoustics of buildings and their
remedies. (8)
b) ii) What is magnetostriction effect? With a neat circuit diagram, describe the
production of ultrasonic waves by magnetostriction method. (8)
(or)
b) i) Describe simple cubic, body centered cubic and face centered cubic
structures with examples and calculate the atomic packing density. (12) ii) NaCl crystal has fcc lattice. The density of NaCl is 2.18 g/cm3. Calculate the distance between the sodium and chlorine ions. (Atomic weight of sodium is 23 and atomic weight of chlorine is 35.5). (4)
12. a) i) Describe the construction and working of Michelson's interferometer. Explain the method of determination of wavelength of monochromatic source of light. (12) ii) Explain fibre optic based displacement sensor. (4)
(or)
b) i) With necessary theory explain the construction and working of CO2
laser. (12)
ii) Discuss the classification of optical fibres based of refractive index profile. (4)
13. a) i) Solving Schrodinger's time independent wave equation find the energy
eigenvalues of a particle moving freely inside an one - dimensional box. (12) ii) In a Compton experiment the wavelength of the incident photon is 1. 325A, whereas that of the scattered photon is 1.351 A. Find the angle through which the photon is scattered and also calculate the kinetic energy of the recoiling electron. (4)
(or)
2
b) i) Derive an expression for density of energy states. Obtain an expression for Fermi energy in metals at T = 0 K. (12) ii) Aluminum is a trivalent metal. Its electrical conductivity at room temperature is 3.8x107 Q-1m-1. The atomic weight and density of aluminum are 27 and 2700 kg/m3 respectively. Calculate the mean free path of the conduction electrons in aluminum at room temperature. (4)
14. a) i) Derive an expression for electrical conductivity of an intrinsic semiconductor. Describe the experimental method of determination of bandgap of a semiconductor (16)
(or)
b) i) Explain with a sketch the variation of Fermi level with temperature and doping concentration in an N-type semiconductor . (12) ii) Explain Type I and Type II superconductors. (4)
15. a) i) What is meant by internal field in dielectrics? Obtain Clasius- Mosotti equation and explain how it can be used to determine the dipole moment of polar molecules. (12)
ii)Explain shape memory alloys. (4)
(or)
b) i) Explain the non-destructive testing method of materials by Liquid
penetrant method. (8) ii) Draw the block diagram of ultrasonic flaw detector and explain how it is
used for detecting defects in materials. (8)
3
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