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Sathaybama University BE 5ET201A-6C0001 (2005/07/08/09) English Dec 2010

Sathaybama University BE 5ET201A-6C0001 (2005/07/08/09) English Dec 2010

Register Number







                               
SATHYABAMA UNIVERSITY
(Established under section 3 of UGC Act, 1956)

Course & Branch: B.E/B.Tech - AERO/CIVIL/MECH/M&P/
AUTO/BIN/BME/BTE/CHEM
Title of the Paper: English                                     Max. Marks: 80
Sub. Code: 5ET201A-6C0001 (2005/07/08/09)    Time: 3 Hours
Date: 07/12/2010                                                    Session: FN
______________________________________________________________________________________________________________________

PART - A                (10 X 2 = 20)
Answer ALL the Questions
1.     Match the words in column A with their meanings in column B
       

A
B
1.
Affluent
Tranquil
2.
Benevolent
Ethical
3.
Serene
Wealth
4.
Moral
Kind.

 
2.     Combine the sentences using the connectives.
1. A metal expands when it is heated. Expansion joints are fitted to steam pipes.
2. Atomic power is not available in sufficient quantity. Coal is still a very valuable source of power.

3.     Change the following into impersonal passive voice:
        1. A lathe can cut screws.
        2. The driver starts the engine.

4.     Rewrite the given hints to indicate the expression of purpose.
        1. An ammeter: Measuring current.
        2. Cultural exchange between countries: promote good will.

5.     Fill in with the suitable tense form of the verbs given in brackets.
1. The plastics industry ………… (expand) enormously since the end of the war.
2. The presence of large coal deposits ……… ( Prove) by preliminary surveys.

6.     Correct the mistakes if any.
        1. The computer solves the problem quicker than him.
        2. This work will be completed by 6 p.m. in the evening.

7.     Rewrite the following words using any one of the prefixes provided:
        Intra-, hypo-, bi-, super-
        (a) Cycle                 (b) structure
         (c) Venous     (d) thyroidsm

8.     Complete the following:
        1. If the road is not in good condition, _________________
        2. If the vehicle is serviced regularly, __________________

9.     Fill up the blanks with suitable Gerund or Infinitive.
        1. The militant denied _________ (take) any help from Pakistan.
        2. They made an attempt __________ (Kill) the Leader.

10.   Expand the following acronyms
        1. VIRUS
        2. DBMS
PART – B                       (6 x 10 = 60)
Answer All the Questions

11.   Read the text given below and answer the questions that follow:

FLICKER
                Walter examined hundreds of people who had any kind of fit attack and found that about one in every twenty responded to carefully adjusted flicker. They experienced ‘strange feelings’ or faintness or swimming in the read; some became unconscious for a few moments or their limbs jerked in rhythm with the light. As soon as any such sensation was reported, the flicker was turned off to prevent a complete convulsion. In other subjects, the flicker has to be exactly matched with the brain rhythm to produce any effects. A feedback circuit, in which the flashing light was actually fired by the brain signals themselves, produced immediate epileptic seizures in more than half the people tested.

        Driving down a tree-lined avenue with the sun flickering through the trunks at a certain rhythm can be very disturbing. There is a record of a cyclist who passed out on several occasions while traveling home down such an avenue. In his case the momentary unconsciousness stopped him from pedaling, so he slowed down to a speed at which the flicker no longer affected him and came round in time to save himself from falling. But a motor car has more momentum, and the chances are that it would keep going at the critical speed and influence the driver long enough to make him lose control altogether.

There is no way of knowing how many fatal crashes have occurred in this way.

        In another case, a man found that every time he went to the cinema he would suddenly find that he was consumed by an overwhelming desire to strangle the person sitting next to him. On one occasion he even came to his senses to discover that he had his hands clutched around his neighbour’s throat. When he was tested, it was found that he developed violent limb jerking when the flicker was set at twenty-four cycles per second, which is exactly the rhythm of film recorded at twenty-four frames a second.

        The implications of this discovery are enormous. Everyday we are exposed to flicker in some way and run the risk of illness or fatal fits. The flash rate of fluorescent lights at 100 to 120 per second is too high for convulsions, but knows what effect it may be having on those exposed to it for many hours each day?

(i) Choose the response that best reflects the meaning of the text:                                                                                        (4x1=4)
1. Walter was interested in the reactions of
        (A) Epileptics                         (B) Cyclists
        (C) Normal people          (D) Motorists

2. When the experiment was going on and it was noticed that people began to have strange feelings.
        (A) The experiments was stopped
        (B) The flicker was matched with their brain rhythm
        (C) A feedback circuit was used
        (D) They were allowed to have an epileptic fit

3. Flicker is likely to affect car drives more than cyclists because
        (A) Cyclists can close their eyes for a few seconds
        (B) Cars cannot slow down in time
        (c) The rhythm of flicker is faster for cyclists
        (D) Cyclists cannot go fast enough to be affected

4. The man in the cinema wanted to strangle his neighbor because
        (A) The film was very violent
        (B) He did not like his neighbor
        (C) He responded to the flicker of the film
        (D) He was mentally unsound

(ii) State whether the following statements are true or false:
(1)          Walter examined people who were subject to fits.
(2)          When they began to have a convulsion he stopped the experiment.
(3)          Most people do not respond to flashing lights.
(4)          The cyclists fell off his bicycle.
(5)          Drivers are affected very suddenly by flicker
(6)          The man went to they cinema because he enjoyed strangling people.

12.   Read the following passage and make notes:
       
It is common knowledge that the root cause of our backwardness in most fields is illiteracy. Campaigns for the irradiations of this drawback gathered momentum in the past four decades after independence. The results are, as expected, dramatic. However, while the percentage of literacy in India is going up, the number of illiterates has also been increasing, which is really incredible. Thus, according to the 1991 census figures, there were 503 million illiterates in the country, 30 million more than in 1981. During the same period, the percentage of literacy went up from 34 to 39 percent. There is no need of any sophisticate technique to explain the cause of this paradox, as it is obviously the result of the rapid growth of population. The rapid growth of population has outpaced whatever little progress had been achieved in literacy. For instance, form 1971 to 1981, literacy increased at an annual average rate of 0.7%, while the country’s population grew by 2.15% every year. In the following decade the average rate of annual increase in literacy was 0.95%, whereas the population grew by almost 2.85% every during that decade. But population explosion is not entirely responsible for the growing number of illiterates. The apathy of most states in failing to tackle the problem of adult illiteracy is also partly to blame. Till now, they have shown little awareness of the magnitude of the problem. More over, follow up measures to prevent neo literates from relapsing into illiteracy are just as important as the initial adult literacy campaigns. In this case too the state education authority is negligent. Not sufficient provision has been made for “continued education”. This can be done by setting up more rural libraries, adult schools and correspondence courses.

13.   Write a report to find out the retailers perceptions on confectionery industry in Chennai and find out which confectionery company leads the market share in about 200 words.

14.   Read the given passage and draw a flowchart to represent the process of making paper.
                There are twelve major steps involved in the process of making paper. (i) Trees are harvested and the bark is removed from the logs in the barker. (ii) The logs are cut into small chips in the chipper. (iii) The chips from oatmeal- like pulp as they are cooked with water and chemicals in the digester (large pressure cooker). (iv) The pulp, under pressure, is blown out of the digester into a tank called a blow tank (v) The pulp is sent to washers where the cooking liquid, containing chemicals and impurities, is removed and the pulp washed with water. (vi) Bleach is mixed with the pulp to turn it white in the bleachers. (vii) The pulp is sent to a refiner which beats and roughs up the fibers. A large quantity of water is added to the pulp to form slurry. (viii) The slurry flows over a moving wire screen and called a Fourdrinier. As the fibers travel along the screen, water drains through and the fibers form a sheet. (ix) More water is pressed out of the sheet by a press roll. (x) The sheet is dried as it travels through dryer rolls. (xi) The sheet is ironed on the calendar rolls to give it a smooth finish. (xii) The sheet is rewound by a rewinder on to reels for shipping. These twelve steps give you an idea of how paper is made in a large scale process. In steps one and two, the wood is prepared for processing. Steps three through the paper. Step nine through twelve dry the paper it for shipping.

15.   A reputed Engineering firm, located in Chennai requires Maintenance Engineers in Electrical, Mechanical and Civil branches.
       
        Experience: A minimum of three years in a related area.
        Age: Not exceeding 35 years.
        Note: Preference will be given to computer literate specialists.
        Apply with full career details mentioning present and the expected salary to the Human Resource Manager, P.O.Box-7977. C/o. The Hindu, Chennai-2 within 2 days.

16.   Edit the passage:
The period commonly known as the Renaissance (1400-1600) began in Florence, Italy. It represented a renewed interest in Greek and Roman art and literature. The greatest achievements in art during this period were the perfection of depth perspectives, use of colors and affects of light and shadow. Artis across Europe improved on the ancient artists’ techniques as no other period had done the learned were studying Greek and Roman to red the ancient literary classics. There were many advances in science and technology, discoveries in the New World and changes in religion the growth of Universities throughout Europe helped create a more educated middle class that was to take over running the government within the following centuries. Europe has come out of the Dark Age. This ides of rebirth in learning characterized other epochs in history in the different parts of the world.

17.   Should advertisement be banned? Justify.    


Sathyabama University B.Tech BTE/BME/BIN 5ET114-6C0015 (2006/07/08/09) Basic Microbiology Dec 2010

Sathyabama University B.Tech BTE/BME/BIN 5ET114-6C0015 (2006/07/08/09) Basic Microbiology Dec 2010
Register Number







                               
SATHYABAMA UNIVERSITY
(Established under section 3 of UGC Act, 1956)

Course & Branch: B.Tech - BTE/BME/BIN
Title of the Paper: Basic Microbiology                 Max. Marks: 80
Sub. Code: 5ET114-6C0015 (2006/07/08/09)       Time: 3 Hours
Date: 10/12/2010                                                    Session: AN
______________________________________________________________________________________________________________________

PART - A                (10 X 2 = 20)
Answer ALL the Questions
1.     Write short notes about Microscopy.

2.     Write the characteristics of microorganisms.

3.     Structural differences between bacteria and actinomycetes.

4.     What is differentiation?

5.     Name the differentiating organisms.

6.     How the multiplication process is taking place in yeast?

7.     What are the phases in growth curve?

8.     What are the different methods of enumeration of multiplying microorganism?

9.     What is Bio gas?

10.   Write the applications of bio fertilizers.

PART – B                       (5 x 12 = 60)
Answer All the Questions
11.   Explain the taxonomic methods of studying micro organisms.
(or)
12.   Explain in detail about laser optics system.
       
13.   Write the general structural organization of Bacilli.
(or)
14.   Give the structural classification of bacteria and virus.

15.   Explain the lytic and lysogenic cycles of bacteriophages.
(or)
16.   Explain yeast as a differentiating organism.

17.   Explain in details about the growth curves of microbes in detail.
(or)
18.   Explain the growth of microorganisms in different media.

19.   Explain detail about the recycling of biomaterials.
(or)
20.   Write the advantages of bio fertilizers and bio pesticides.


Sathyabama University B.Tech BTE/BME/BIN 5ET102B-6C0013 (2006/07/08/09) Basic Statistics Dec 2010

Sathyabama University B.Tech BTE/BME/BIN 5ET102B-6C0013 (2006/07/08/09) Basic Statistics Dec 2010
Register Number







                               
SATHYABAMA UNIVERSITY
(Established under section 3 of UGC Act, 1956)

Course & Branch: B.Tech - BTE/BME/BIN
Title of the Paper: Basic Statistics                         Max. Marks: 80
Sub. Code: 5ET102B-6C0013 (2006/07/08/09)    Time: 3 Hours
Date: 11/12/2010                                                    Session: AN
______________________________________________________________________________________________________________________

PART - A                (10 X 2 = 20)
Answer ALL the Questions
1.     State the empirical relationship between the averages.
  
2.     Write Bowley’s coefficient of skewness.

3.     Write probable error in the correlation coefficient.

4.     Write the correlation formula for tied ranks.

5.     The letters of the word “REGULATIONS” be arranged at random. What is the chance that there are exactly 4 letters between R and E?

6.     From a pack of 52 cards 3 cards are drawn at random find the chance that they are king, queen and a knave.

7.     A continuous random variable has the probability  function f(x) = Ax2, 0 £  x  £ 1.  Find A, also find the probability that x lies between 0.2 and 0.5.

8.     Write the general form of marginal and conditional distributions in the case of continuous functions.

9.     Comment: the mean of binomial distribution is 3 and variance 4.

10.   If x is a Poisson variate such that p(x = 2) = 9p(x=4) + 90p(x = 6) Find l.

PART – B                       (5 x 12 = 60)
Answer All the Questions
11.   (a) Find the median and two quartiles.
       
Marks
below 10“
20“
30“
40“
50“
60
below 70
Freq.:
15
35
60
84
106
120
125

(b) In an experiment the mean and standard deviation of 20 observations are 25 and 10 respectively.  Later it was found that one entry was wrongly recorded as 34 instead of 44.  Calculate the correct mean and standard deviation.
(or)
12.   (a) Find out the missing frequencies. The arithmetic mean is 67.45
Height
60 - 62
63 - 65
66 - 68
69 - 71
72 - 74
total
Value
5
18
f3
f4
8
100

        (b) Calculate mean deviation about mean.
Interval
20 - 30
30 - 40
40 - 50
50 – 60
60 – 70
70 – 80
80 – 90
90 – 100
Freq.:
3
8
9
15
20
13
8
4

13.   Fit a parabolic curve.
        X: 1    2   3      4      5      6      7      8      9
             2    6   7      8      10    11    10    9             
(or)
14.   (a) Calculate the coefficient of correlation.
        X:    1      3      5      8      9      10
        Y:    3      4      8      10    12    11
(b) In partially destroyed records the following data available. Variance of x is 25, regression equation x on y is 5x – y = 22, regression equation y on x is 64x – 45y = 24.  Find mean values of x and y, coefficient of correlation, standard deviation of y.

15.   (a) Three groups of children contains respectively 3 girls and 1 boy, 2 girls and 2 boys and 1 girl and 3 boys.  One child is selected at random from each group.  Find the chance that the three selected consists of 1 girl and 2 boys.
        (b) Three boxes contains 1 white, 2 black and 3 red balls, 2 white, 1 black and 1 red ball, 4 white, 5 black and 3 red balls respectively.  One box is selected at random and two balls are drawn. They happen to be white and red.  What is the probability that they came from box 1,2, or 3.
(or)
16.   (a) In a bolt factory machines A,B and C manufacture 25%, 35%,  40% of the total.  Of their output 5,4,2 per cent defective.  A bolt is drawn at random and found to be defective.  What is the probability that is was manufactured by machines A,B, and C.
(b) Box A contains 2 white 1 black and 3 red balls.  Box B contains 3 white  2 black and 4 red balls.  Box C contains 4 white 3 black and 2 red balls. One box is selected at random and two balls are drawn, they are red and black.  What is the probability that both balls came from box B?

17.   (a) A the diameter of an electric cable say X is assumed to be a continuous random variable with pdf f(x) = 6x (1 – x) 0 £ x £ 1, find 1. Check that it is pdf. 2. Determine the number b such that p(X < b) = p (X> b).
        (b) The joint probability density function of a two dimensional random variable (X,Y) is given by f(x,y) = 2,0 < x < 1,0<y<x,= 0 otherwise. Find the marginal density functions of X and Y. Find the conditional density function of Y given X = x and conditional density function of X given Y = y.
(or)
18.   (a) If X and Y are two random variables having joint density function f(x,y) = 1/8 * (6-x-y); 0 <x<2, 2<x<4 = 0 otherwise.  Find p(X<1 È Y<3), P(X+Y<3), p(X<1/Y<3).
(b) A petrol pump is supplied with petrol once a day.  If its daily volume X of sales in thousands of liters is distributed by f(X) = 5(1-x)4, 0 £ x £ 1 what must be the capacity of its tank in order that its supply will be exhausted in a given day shall be 0.01?

19.   (a) An irregular six faced die is thrown and the expectation that in 10 throws it will give five even numbers is twice the expectation that it will give four even numbers.  How many times in 10,000 sets of 10 throws each would you expect it to give no even number?
        (b) A manufacturer of cotter pins knows that 5% of his product is defective. If he sells cotter pins in boxes of 100 and guaranties that not more than 10 pins will be defective,  What is the approximate probability that a box will fail to meet the guaranteed quality?
(or)
20.   (a) If X is a normal variate with mean 30 and SD 5, Find the probabilities that i. 26 £ X £ 40, ii. X ³ 45 and |X – 30| > 5.   (4)
        (b) In an examination it is laid down that a student passes if he secures 30% or more marks. He is placed in the first, second or third division according as he secures 60% or more marks, between 45% and 60% and between 30% and 45% respectively. He gets distinction in case he secures 80% or more marks.  From the result that 10% students failed in the examination, whereas 5% of them obtained distinction, Calculate percentage of students placed in the second division.  (Assume the distribution is normal).                                                                           (8)       



Sathyabama University BE 4ET203B-5ET203B Applied Physics – II December 2010

Sathyabama University BE 4ET203B-5ET203B Applied Physics – II December 2010
Register Number







                               
SATHYABAMA UNIVERSITY
(Established under section 3 of UGC Act, 1956)

Course & Branch: B.E/B.Tech - AERO/M&P/BME/MECH
Title of the Paper: Applied Physics – II                 Max. Marks: 80
Sub. Code: 4ET203B-5ET203B                             Time: 3 Hours
Date: 10/12/2010                                                    Session: AN
______________________________________________________________________________________________________________________

PART - A                (10 X 2 = 20)
Answer ALL the Questions
1.     Define viscosity.

2.     Write short notes on streamline motion.

3.     Name any two applications of Joule-Thomson effect.

4.     What is meant by refrigeration?

5.     What are photo elastic materials?

6.     Define photo elastic effect.

7.     Explain chain nuclear reactions.

8.     Give an example of a nuclear fusion reaction with the help of an equation.

9.     Mention any two applications of ultrasonic waves.

10.   List out any four properties of X-rays.



PART – B                       (5 x 12 = 60)
Answer ALL the Questions

11.   Derive an expression for viscosity using Poisulle’s method for flow of liquid through a capillary tube.
(or)
12.   (a) Write short notes on turbulent flow of liquids.
(b) Explain the construction and working of Venturimeter with the help of a neat diagram.
       
13.   What is Joule-Thomson effect? Derive an expression for Joule-Thomson coefficient.
(or)
14.   Define adiabatic demagnetization. Explain the various stages of refrigeration cycle with the help of neat diagrams.

15.   How is stress and strain measured by photo elastic bench? Explain the same by using necessary diagrams.
(or)
16.   State and derive stress-optic law and hence explain the formation of isoclinic and isochromatic images.

17.   Name the general parts used in any nuclear reactor. Discuss in detail the types of research nuclear reactors with necessary diagrams.
(or)
18.   Discuss in detail the construction and working and applications of power nuclear reactor with neat diagrams.

19.   Define phonocardiograph. Also explain its construction and working with the help of neat Sketch.
(or)
20.   Write short notes on gamma camera. Discuss the construction and working of a scintillation detector with diagrams.


Sathyabama University BE common to all branches 4ET115/5ET115/6C0007/5ET206 (2006/07/08/09) Programming in C Dec 2010

Sathyabama University BE common to all branches 4ET115/5ET115/6C0007/5ET206 (2006/07/08/09) Programming in C Dec 2010
Register Number







                               
SATHYABAMA UNIVERSITY
(Established under section 3 of UGC Act, 1956)

Course & Branch: B.E/B.Tech – Common to ALL Branches
Title of the Paper: Programming in C                    Max. Marks: 80
Sub. Code: 4ET115/5ET115/6C0007/5ET206 (2006/07/08/09)    Time: 3 Hours
Date: 08/12/2010                                                    Session: FN
______________________________________________________________________________________________________________________

PART - A                (10 X 2 = 20)
Answer ALL the Questions
1.     Write the characteristics of Structured Programming Languages.

2.     How do constants differ from variables?

3.     char s[20] =” Programming in C”;
        scanf(“%s”,s);
        gets(s);
        What will be the output of this program segment?

4.     When can break and continue be used?

5.     What is an index and why does it have to be unique?

6.     Define recursion.

7.     What is the use of ‘*’ and ‘->’ operators in pointers?

8.     How is a structure different from an array?

9.     What is a file?

10.   Mention the use of fprintf and fscanf.

PART – B                       (5 x 12 = 60)
Answer All the Questions
1.     (a)    What is meant by flowchart? Explain the symbols used for
        drawing a flowchart.
        (b)   Write the structure of a C program. Explain it with an 
        example program.
(or)
12.   Explain the various types of operators available with a sample program for each type.
       
13.   (a)    Give the syntax of scanf ( ) and printf ( ) and explain their
        usage in C language.
        (b)   Write a C program to accept numbers from the user until
        their sum exceeds 50.
(or)
14.   Write a C program to find the roots of a quadratic equation. Use switch case.

15.   (a)    Write a C program to find the transpose of a matrix.
        (b)   Assume s1 =” Welcome” s2=”hai”.
                Write a C program to     (i)    find the length of s1.
                                                        (ii)   copy to another string s3
                                                        (iii)  compare s1 with s2
(or)
16.   List the different storage classes available in C. Explain each of them in detail.

17.   (a)    Write a C program to swap two numbers using pointers and
        without using pointers.
        (b)   How can an array of pointers be accessed? With an example
        program, explain in detail.
(or)
18.   Write a structure with following members: student name, student roll no, three subjects marks, total, percentage. Find the sum and percentage of marks for 10 students.

19.   Explain the steps that are followed while accessing a file.
(or)
20.   Explain how random access is done in a file.



JNTUK R05012302 BASIC ELECTRICAL AND ELECTRONICS ENGINEERING June 2011 Question Paper

JNTUK R05012302 BASIC ELECTRICAL AND ELECTRONICS ENGINEERING June 2011 Question Paper
Question Paper University : Jawaharlal Nehru Technlogical University, Kakinada.
Course  :  B.Tech 1st year.
Question Paper Subject code : R05012302
Question Paper Subject : BASIC ELECTRICAL AND ELECTRONICS ENGINEERING.
Year of Exam  : June 2011.
Question Paper Attachment : Texts
Question Paper Version : Type Version.

I B.TECH – EXAMINATIONS, JUNE - 2011
BASIC ELECTRICAL AND ELECTRONICS ENGINEERING
(BIOTECHNOLOGY)
Time: 3 hours Max.Marks:80
Answer any FIVE questions
All questions carry equal marks
- - -
1.a) Write down the expression for the instantaneous power, and hence derive the equation for the average power.
 b) A series R-L-C circuit consists of 100 ohms resistor and an inductor of 0.318 Henry and a capacitor of unknown value. This circuit is supplied by 230V, 50 HZ supply and draws a current of 2.3 ohms, and the current is in phase with the supply voltage. Find i) the value of the capacitance, and the power supplied by the source. [8+8]

2.a) Derive the equation for the voltage generated in a d.c generator.
b) A 2 pole d.c generator has 200 conductors on its armature. It is driven by a prime mover at a constant speed of 600 r.p.m. If the flux per pole is 0.1 wb, calculate the emf generated. [8+8]

3. With a neat sketch explain in detail moving coil attraction type instrument. [16]

4.a) Compare Half wave, Center tapped full wave and Bridge rectifiers.
 b) Explain the following terms:
i) Ripple factor ii) Peak Inverse voltage
iii) Efficiency iv) TUF
v) Form factor v) Peak factor. [6+10]

5.a) Draw and explain UJT characteristics also give their applications.
b) Draw a family of drain characteristics and mutual characteristics of an n-channel FET and explain the shape of the curves qualitatively. [8+8]

6.a) Draw the circuit of a current shunt feedback amplifier and explain.
b) An amplifier has a gain of 10,000 without feedback. The gain is reduced to 50 with negative feedback. Find the feedback factor.
 c) Explain the principle of operations of Tuned amplifiers. [4+4+8]

7.a) With the help of neat circuit diagram, explain the following applications of OP-AMP:
i) Multiplier ii) Differentiator iii) Subtractor.
b) Design a scaling adder circuit using OP-AMP, to give the output voltage
VO = -(3V1 + 4V2 + 5V3), where V1, V2 and V3 are the input voltages given to the circuit. [10+6]

8.a) With a circuit diagram, explain Counter type A-to-D converter.
 b) Give the Boolean functions: F x = y + x′y′ ′ + y z
i) Implement with only OR and NOT gates.
ii) Implement with only AND and NOT gates. [8+8]

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