QUESTION PAPER-JANUARY 2011 BE /B.Tech DEGREE
Contents
1. Massachusetts Institute of Technology MIT say the problem lies not with the ions but rather at how the ions gain access to nano scale tunnels that riddle the material and transport the electrons to their destination Their solution was a lithium phosphate coating that like a system of feeder roads nudges the ions towards the tunnel s The ions then zip instantly down the tunnel entrance and to the terminal A small cell phone battery can be recharged in just 10 seconds thanks to the improve ion flow they report in the British journal Nature In theory a large battery that would be used to power a plug in hybrid electric car could be recharged in just five minutes compared to up to six or eight hours at present But this would only be possible if a beefed up electricity supply were available Unlike other battery materials the tweaked LiFePO4 does not degrade as much when repeatedly charged and recharged This opens the way it is made the work could make it into the market place within two to three years it said The invention is the latest claimed advance in the quest to replace conventional electro chemical batteries which are heavy lack energy density and take time to recharge a Choose the correct answer 5x1 5 i What idea do the US scientists visualize 1 Electronic car 2 Laptop computers 3 Fast recharging of batteries 4 Super miniature mobile phones ii What are the present day batteries made of 1 Lithium2. and emotionally fit in spent time knowing new friends and tried to participate in the community activities visited the bank with my friends and started an account and also took part in some sports attended the classes regularly and sat in the front row to avoid distractions In the first few months used to visit my hometown once in a fortnight On certain occasions my parents visited me stayed connected with my friends back home through email and phone My positive attitude helped me to overcome the initial inhibition and lead a happy life in the college 15 Given below are two passages Read one of them to draw a flow chart a The process of making photocopies Static electricity enables a photocopier to produce almost instant copies of document At the heart of the machine is a metal drum which is given negative charge at the beginning of the copying cycle The optical system then projects an image of the document on the drum The electric charge disappears where light strikes the metal surfaces so only dark parts of the image remain charged Positively charged particles of toner powder are then applied to the drum The charged parts of the drum attract the dark powder which is then transferred to a piece of paper A heater seals the powder to the paper and a warm copy of the document emerges from the photocopier Metal drum given Image of the document Light Negative charge projected On drum strikes electric char
3. ANNAUNIVERSITY CHENNAI QUESTION PAPER JANUARY 2011 B E B Tech DEGREE EXAMINATION JANUARY 2011 FIRST SEMESTER 186101 TECHNICAL ENGLISH I Common to all branches REGULATION 2010 Time Three hours Maximum 100 marks Answer ALL questions PART A 10x2 20 Marks 1 Match the words in column A with their meanings in column B 4x1 2 2 A B a Hazard iii danger b Consumption iv use c Sustainable v able to continue over a period of time d Critical i very important 2 Change the following into passive voice 2x1 2 a The government of India gives awards to outstanding scientists Ans Awards are given to outstanding scientists by the government of India b AIl sections of people discuss climate change today Ans Climate change is discussed by all sections of people today 3 Make opposite words from the following words using appropriate prefixes 4x1 2 2 a Possible impossible b Intelligible unintelligible c Definite indefinite d Courage discourage 4 Fillin the blanks with suitable tense form of verbs given in brackets 4x1 2 2 Accidents always happen happen at a point of time and space Give the fatalities it has been worked out work out to 0 00328 per cent of the total road user kilometers everyday along these stretches of highway A small number really but a massive loss if you think think of the lifetime earning potential of those who die die in these mishaps 10 11 Fill in the
4. Take it to an authorised service centre if the mobile device or battery has been submerged in water punctured or subjected to a severe fall viii Do not dispose of your battery or mobile device in a fire 13 a Write a letter to your principal asking permission to visit a company related to your branch of study as a part of your educational programme 16 25 5 2011 M Sandeep Il year Electronics amp Communication Engineering XYZ Engineering College Chennai 48 The Principal XYZ Engineering College Chennai 48 Dear Sir Subject Requisition for Industrial Visit Reg We the second year Electronics and Communication Engineering students would like to visit All India Radio Chennai in order to understand the nuances of broadcasting We have got necessary permission from the authorities concerned Mr Javendar and Dr Reena Assistant Professors of the ECE Department have agreed to accompany us request you to kindly grant us permission to visit All India Radio Chennai on 30 5 2011 one day only so that it would be an enlightening experience for us Thanking you Yours faithfully Sd M Sandeep Class Representative OR b Assume that you are the Vice Chancellor of a well known University Write letter of acceptance to the Secretary of the Students of an Engineering college for inaugurating the annual day function of your college 16 CENTRAL TECHNICAL UNIVERSITY Chennai 48 Dr R V Ramanujan Vice Chancellor M
5. ators In general computer labs are used to give practice to courses related to operation languages like C C etc and softwares like Auto CAD Matlab etc Now it is being used for learning languages also This lab helps users to learn a new language with assistance from the system itself OR b Write a coherent paragraph of 200 words describing your difficulties in adjusting in to the new situation when you joined the college 16 Though it is a happy occasion sometimes the transition from living with parents attending a local school to going away for college studies to a new environment may be a harrowing experience But for me before going to college considered it a celebration and talked about my college had visited the college during the open house had learned about the various activities related to sports culturals and other student oriented information packed everything in advance to create a home like atmosphere in my room When entered the college made all efforts to befriend my roommates We shared various interesting matters and spent the night talking together The next day got up early and got ready for attended the classes After tea breakfast we all went as a group to our class The teachers came and introduced themselves and made us tell about us They were friendly and tried to make us comfortable As the first few days could pave the way for my happy life in college took extra steps to mentally
6. blanks with suitable comparative adjective using the words given in brackets 4x1 2 2 a A fan is cheaper than cheap an air conditioner b Nanotechnology is more popular than popular any other subjects today c Nothing is more difficult than difficult concentrating on a subject we don t like d Laptops are more convenient that convenient desktop computers Expand the following compound nouns 4x1 2 2 a Technology policy Policy of technology b Health center Centre for health c Road transport Transport on road d Electricity bill Bill for electricity Edit the following 4x1 2 2 The atmosphere makes life possible on earth because of its three important functions three very important function it contains life giving oxygen it keeps earth warm and it absorbs the deadly ultraviolet rays from the sun s radiation Use TWO of the following cause and effect expressions in separate sentences of your own 2x1 2 a Leadto The increase in vehicular population leads to traffic snarls b Because of There was a hue and cry among workers because of the new policy c Due to The roads were flooded due to heavy rain Define TWO of the following 2x1 2 a Stapler A stapler is a device that is used to fasten papers together with staples b Wrist watch A wrist watch is a small watch worn on strap etc around wrist c Calculator A calculator is a small electronic device used to make calculat
7. ge disappears Dark parts of the image Positively charged particles charged of toner powder applied to drum Charged parts of the drum attract Powder transferred to piece Heater seals the the dark powder of paper powder to the paper Copy of the document got b The process of making bread Bread is eaten in most parts of the world but not everyone knows how to bake it am going to show you the steps involved in baking bread First measure the correct amount of flour and warm water Next mix the flour and water together in a mixing bowl Add yeast salt and sugar Next knead the mixture until it feels almost dry Leave the mixture for about an hour in a warm place It will grow in size After this knead the mixture again Make sure the mixture is not sticky when you touch it Then leave the dough in a baking tin for about an hour to give it time to rise Finally the dough is put into a preheated oven for about forty minutes It can be seen that making bread is not difficult as long as the correct procedure is followed You will love the smell of your freshly baked bread Correct amount of flour and Mixed in mixing Yeast salt and sugar warm water measured added bowl Mixture kneaded until it feels dry an hour for 40 minutes Fresh baked bread got
8. ions Complete the following If conditional sentences 2X1 2 a If u had watched the common wealth games you would have understood the potential of the Indian sportspersons b If water is heated we heat water it will boil at 100 C PART B 5X16 80 MARKS Read the passage carefully and answer the questions given at the end of it Think of an electric car that can be accelerated swiftly to cruising speed laptop computers that can recharge in a couple of minutes rather than hours and a generation of super miniature mobiles phones That s the vision sketched by a pair of scientists in the United States unveiling an invention that they say could lead to a smaller lighter and more power packed lithium battery than anything available today Current batteries made of lithium iron phosphate LiFePO4 are good at storing large amounts of electricity but stumble at releasing it They are better at dispensing he power in a steady flow than at discharging it or gaining it in a sudden burst As a result electric cars perform best when travelling along the motorway at a constant speed rather than when they are accelerating and their batteries take hours to recharge when they run down Until now the finger of blame has pointed at charged lithium atoms these ions along with electrons move too sluggishly through the battery material before arriving at the terminal to deliver their charge or so it was thought But two materials experts at the
9. iron 2 Lithium iron phosphate 3 Electro chemical batteries 4 Lithium phosphate iii What is the major problem with current batteries 1 They don t give power steadily b c 2 They store enormous electricity 3 They are difficult to use 4 They cannot be charged often iv What solution do the MIT scientists give 1 Lithium coating 2 Phosphate coating 3 Lithium phosphate coating 4 Lithium battery coating v What is new in the solutions 1 The way in which coating is done 2 The way in which the material is prepared 3 The way in which recharging is done 4 The way in which researched is carried out Mention whether the following statements are true or false 5x1 5 i We can imagine a day when very quick recharging of batteries is possible TRUE ii Currently available batteries give power steadily FALSE iii Materials experts are interested in batteries only FALSE iv This research results can be put into commercial use soon TRUE Choose the appropriate definition for the words as they are used in the text 6x1 6 i Cruising 1 Crossing 2 Slow 3 Miraculous 4 Steady and moderate ii Unveiling 1 Celebrating 2 Introducing 3 Reducing 4 Publishing iii Dispensing 1 Giving medicine 2 Wasting 3 Disturbing 4 Doubling of number iv Beefed up 1 Strengthened 2 Additional 3 Modernized 4 Badly maintained v Run down 1 Stop functioning 2 Fall dow
10. n 3 Go down 4 Start functioning vi Sluggishly 1 Fast 2 Carefully 3 Casually 4 Slowly 12 a Write a set of instructions for 12 a Write a set of instructions for operating the ticket vending machine at a railways station Instructions for operating the ticket vending machine at a railway station i Read the instructions carefully before operating the vending machine ii Do understand the meanings of the symbols before pressing iii Choose your destination iv Press the button for the station you want to travel to v Select your ticket type vi Select a discounted ticket vii Pay your fare by inserting coins or credit cards in the slot provided viii Collect your ticket along with any change or receipt for credit card transactions or b Write a set of instructions for using your cell phone safely Instructions for using cell phones safely i Examine your phone by reading the user manual ii Keep your mobile device and its accessories away from small children iii Avoid continuous use of mobile phones for long hours as it may cause physical discomfort iv Keep the mobile device and its antenna at least 2 5 centimeters 1 inch from your body if you do not use a body worm accessory v Avoid answering the phone or using it all while engaged in actual driving vi Obey all posted signs when using mobile devices in public areas such as health care facilities or blasting areas vii
11. r K Praveen kumar Secretary Students Union XYZEngineeringCollege Chennai 35 Dear Mr Praveen Thank you for your invitation to inaugurate the annual day function of your college feel glad to accept your invitation and would love to inaugurate your annual day and address the budding engineers Thank you for transportation arrangements would be ready in my office at 9 30am on that day Best regards Sincerely Sd Dr R V Ramanujam 14 a Write a paragraph of 200 words describing your computer practice laboratory 16 Our computer lab is typically a room with many computers networked and which could be accessed by many ata time The computers are set up in the room that is air conditioned in order to prevent dust settling on the computers keyboards The lab is connected to a server The server is uploaded with software required for education and research purposes All the computers are provided with UPS so that The users can have uninterrupted power supply Printers Scanners and other peripherals augment the lab set up Users are instructed to leave their footwear and other accessories outside before entering They are usually provided with a password with which they can access the operations Users can log in finish their work and log out before leaving In order to avoid virus users are barred from using CD Pendrives etc The computer practice labs are usually under the supervisions of computer technicians and system oper
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