ENVIRONMENTAL STUDIES
DATE: 06.11.2006 TIME: 2HRS MAX.MARKS:50
NOTE: Answer all questions
1. Write short-note on [5 x 2 = 10]
a) Environmental science is interdisciplinary. Explain.
b) Renewable and non-renewable energy sources.
c) Water logging and salinity.
d) Hydrological cycle.
e) Geo thermal energy.
2. [5 x 2 =10]
a) What are the present environmental issues at global level?
b) Explain the necessity of environmental education
(Or)
c) Explain the various action stategies for sustainable development.
d) Discuss the impact of humans on environment.
3. [5 x 2 =10]
a) What is deforestation? Mention the causes and effects due to deforestation.
b) Mention the sources and over exploitation of water resources.
(Or)
c) What are the direct and indirect benefits from forests?
d) What is soil erosion? What are the causes and control methods for soil erosion?
4. [5 x 2 = 10]
a) What is land degradation? What are the causes of land degradation?
b) Explain the effects due to modern agriculture.
(Or)
c) What are the environmental effects of mineral exploration?
d) Write about alternative sources of energy when compared to conventional sources of energy.
5. [5 x 2 = 10 ]
a) Write short note on conservation of mineral resources.
b) What are the benefits and problems due to dams?
(Or)
c) Write about various types of energy sources.
d) What are the various problems associated with over utilization of natural resources.
PC & IT
TIME: 2 HOURS MAX.MARKS: 50 DATE: 13.11.06
1. (Each question carries 2.5 marks)
a) Explain the differences between primary and secondary memory.
b) Write an equivalent c program expression for
Square root of (a x a + b x b-2abcos(x)).
c) Write the following programs.
i) main( ) ii)main( ){
{int i=3,j; int x=5,i=1,y=0;
j =++i * ++ i * ++i; if((x&&i)||(y=i))
printf(“%d%d”,i,j); printf(“good”);
} else
Printf(“bad”);}
d) define keyword. Constants and variables with examples and explain for constructing variables.
e)
i) main( ){ ii)main( ){
int x; int i=1,j=-1,k=0,l=2,m;
if(2<1) m=i++&&j++&&k++||l++;
x=0; printf(“%d%d%d%d%d”,I,j,k,l,m);}
x=(2<0)?1:4;
printf(“%d”,x);}
2. define computer, draw a neat sketch of block diagram and explain its functional units (12.5)
(Or)
3.
a) define an algorithm and explain the characteristics. Write an algorithm form finding whether a number is prime or not. (6)
b) define flowchart and explain various symbols used in flowcharts. Draw the flowchart for finding prime number. (6.5)
4.
a) explain various forms of If …. Statements in C. and draw the flow chart for each form. (8)
b) write a program for finding the net salary of an employee. If his Basic Salary is less than 1500. his HRA-10% of basic and DA-90% of basic salary.
If his basic salary is greater than or equal 1500.HRA-500rs and DA=98% of basic salary. calculate the gross salary taking employees basic salary as input. (4.5)
(Or)
5.
a) explain switch statement with flowchart. (6.5)
b) write a program to find grades pf a student using switch statement. (6)
6.
a) explain while and do-while loops with flow chart. (7.5)
b) write a program to check whether the given number is Armstrong or not(5).
(Or)
c) what are the operators available in C? explain them with example. (7.5)
d) write a program to print prime numbers in a given range using while
loop. (5)
COMMUNICATIVE ENGLISH
DATE: 07.11.2006 MAX.MARKS: 50 TIMES: 2 HRS
1. Answer any five of the following briefly.
a) List two uses of the verb ‘DO’ as an auxiliary.
b) Define a clause with examples.
c) Where are preposition placed in a sentence?
d) Differentiate between coordinating and subordinating conjunctions. Give examples.
e) Explain ‘gerunds’ and ‘to infinite ‘.
f) Discuss the importance of perfect continuous tenses.
2. Fill in the following blanks choosing the continuous tenses.
* Since we cannot read every book, we should be content with making a ………………….. Selection.
a) Standard b) sample c) judicious d) normal
* We should be charitable and ………… to the poor.
a) Beneficient b) beneficial c) considered d) sumptuous
* She is ………….. Of all the girls.
a) The taller b) taller c) a taller d) the tallest
* Did you take notes ……………….. the lectures?
a) During b) while c) in d) between
* If …………….. my passport, I will be in trouble.
a) I will lose b) I lose c) I lost d) I would lose.
* Why can’t you look at the problem at the problem ……….. my
Point of view?
a) on b) in c) by d) from
* …………… you dislike them; you should try to be nice to them.
a) As though b) as if c) eventhough d) so long as
* The man ……………. Car was stolen complained to the police.
a) Which b) who c) whom d) whose
* I had to take the dog out ………… of the awful weather.
a) Despite b) inspite c) even if d) due to
* It is dangerous to enter ………… the enemy’s camp.
a) in b) on c) into d) through
3. Analyze sentences i to v by word order and sentences vi to x by clause order.
i) We are working on a new project.
ii) What a pity that she has lost her job.
iii) Arise, awake and stop not till the goal is reached.
iv) May I take a photo of you?
v) How can you work with all this noise?
vi) It isn’t true that I made this mistake.
vii) Birds of the same feather flock together.
viii) He who is afraid to take risks can never do anything great.
ix) I am determined to work hard and to put all my efforts until I achieve my aims.
x) He is good natured but not very compatible.
4. Fill in the following blanks with suitable tense (verb form).
i) You appear to be busy,…………..(work) on your new project.
ii) My friend ……… (Know) the answer to the question.
iii) Robert …….. (Be) ill for three weeks. he is still in hospital.
iv) Two people ……… (die) in a fire in old port yesterday morning.
v) ………he ………(wait) for you when you got there?
vi) What’s the weather like in Canada? How often ……it…..(snow) there?
vii) At this tomorrow, we ………….(fly) over the Atlantic.
viii) I found the calculator, I …….(look) for it since morning.
ix) The students ……………(not finish) their exams.
x) The criminal at last confessed that he ……………(commit) a crime.
5. Use any ten of the following phrasal verbs in sentences of your own.
i) put off ii) held up iii) step down iv) bring out v) do up vi) lay off
vii) Give in viii) take after ix) carry out x) run down xi) show off xii) hit upon.
ENGINEERING GRAPHICS
DATE: 14.11.06 MAX.MARKS: 50 TIMES: 2HRS
NOTE: 1.answer all the questions, all questions carry equal
Marks.
2. Neatness will carry marks.
3. Answer all questions on drawing sheet only.
1.
i. an area of 144 sq.cm on a map represents 36 sq.km. on the field. R.F of the scale is …………………………………(1).
ii. for reading up to 1/20th of a main scale division, the no. of divisions on the vernier should be…………………(1).
iii. Define involute.
iv. The point is equidistance from principal planes and located at 60mm from the intersection of principal plane on auxiliary plane. The front view & top view located at a distance ……………….from XY(1).
v. the locus of a point moving in such a way that sum of its distances from fixed points is always constant. The curve is known as………..(1/2).
vi. if the section plane is parallel to one of the generator of a right circular cone, the curve obtained by sectioning is………………………..(1/2).
vii. When a point lies on ……………..then front view comes on
XY axis.(1/2).
viii. The curve generated by a point on the circumference of a rolling circle, rolling along another circle outside it is called…………(1/2).
ix. The front view of a point 30mm below XY and top view 20 below XY line. The point lies in……………………….(1/2).
x. the front view and top view of a given point will lie on the same straight line and perpendicular to XY line is called……………..(1/2).
2.
a. construct a scale to measure km, 1/8 of a km and 1/40 of a km, in which 1 km is represented by 4cm. mark a distance of 2.775km on this scale.(6).
(or)
b. construct a vernier scale to read decimeters ,centimeters and millimeters and long enough to measure a length of a 6 decimeters. RF of the scale is 1/3.
Mark 3.69 decimeters and 2.53 decimeters on it.(6)
3.
a. A circus man rides on a motor cycle inside a globe of 4m diameter .the motor cycle wheel diameter is 1m.Draw the locus of a point on the circumference of the wheel of the motor cycle for its one complete revolution. And name the curve.(6).
(or)
b. a string 100 mm long is wound round a drum of 20mm radius. Draw the locus of the end of the string. And also draw the thought and normal to the curve.(6)
4.
a. The focii of an ellipse are 90mm.apart and the minor axis is 65mm long. Draw the ellipse by concentric circles method.(3)
b. Two points A and B are in H.P. the point A is being 30mm infront of V.P.
the line joining their top views makes an angle 45 degrees with XY line. Find the horizontal distance between the projectors.(3)
( Or )
c. construct a parabola, with the distance of the focus from directrix as 75mm. also draw normal and tangent to the curve at any point on the curve.(3)
d. a point ‘P’ is 40mm above and 25 mm infront of V.P. ,another point ‘Q’ is 20mm behind V.P. and 30mm below H.P. draw the projections of P and Q and join their front views and top views. Keeping the distance between the end projectors equals to 90mm.(3)
APPLIED PHYSICS
DATE: 10.11.2006 MAX.MARKS:50 TIMES: 2HOURS.
1.
a) Explain the principle of superposition. (3)
b) Distinguish between free, damped and forced vibrations. (3)
c) What do you mean by coherence? (3)
d) Explain the phenomenon of resonance. (3)
e) Explain why a loaded bus is more comfortable than an empty bus? (2)
2.
a) Derive an expression for the time period of Torsional pendulum with necessary theory? Mention applications Torsional oscillations. (8)
b) A mass of 0.5 kg hangs from a spring. If the mass is pulled downward and let go to it executes SHM. Calculate the time period of the same spring is stretched 16cm by 0.4 kg mass? (4)
(Or)
c) Discuss the theory of physical pendulum and derive the equations of the period and frequency. Give a known example of physical pendulum. (8)
d) A body executing SHM described 180 vibrations per minute and has a velocity of 3m/s at its mean position. What is the length of its path? What is its velocity when it is half-way between its mean position and extremely of its path? (4)
3.
a) What are ultrasonics? Explain and how the ultrasonic waves are generated by using the phenomenon of magnetostriction. (9)
b) What do you mean by an acoustic grating and explain how it is formed? (3)
(Or)
c) What is peizo electric effect? Explain the production of ultrasonics waves by peizo electric method. (9)
d) Calculate fundamental frequency of a quartz crystal of thickness 1 mm is vibrating resonance. Given Y for quartz=7.9 x 10 power 10 N/m x m;
p= 2650 kg/m x m x m. (3)
4.
a) Describe the young’s double slit experiment and give the analytical treatment for the intensity for its interference pattern. (10)
b) Two slits which are 1mm apart are illuminated by monochromatic light. Fringes are formed on the screen which is at a distance of 1mt. from the slits and fringes are separated by 0.5mm. Calculate the wavelength of light. (2)
(Or)
c) Derive an expression for the time period of a two-body oscillating system.
What is reduced mass and calculate the reduced mass for HCL molecule in amu?
d) Write the different applications of the ultrasonic waves.
