Andhra University 2008 B.E COMPUTER PROGRAMMING AND NUMERICAL - Question Paper

I Year B.E./B.Tech Degree exams

COMPUTER PROGRAMMING AND NUMERICAL

TECHNIQUES

(Common to All Branches)

Time : 3 hours Maximum : 75 Marks

ques. one is compulsory

ans any 4 from ques. two to 8

All ques. carry marks

15

b) compute the values of ( )

( )

x2 y2
x y

-

+ with x = 0.4845

and y = 0.4800, using normalized floating point airthematic.
Compare the value with (x-y). Determine relative fault

of the former.

5. a) obtain the root of the subsequent equations accurate upto two decimal

places using false position method.

x3-2x2+3=0
b) obtain the root of the subsequent formula accurate upto two decimal

places using Newton - Raphson method.

sinx=1-x

6. a) From the subsequent table obtain the value of f (x)when

x = 0.21.

x 0.20 0.22 0.24 0.26 0.28 0.30

f (x) 1.6596 1.6698 1.6804 1.6912 1.7024 1.7139

b) From the subsequent table obtain the value of f (x)when x = 4.

x -1 0 three six 7

f (x) three -6 39 822 1611

16

7. a) compute the value of

2

0

I sinxdx

p

=ò by Simpson rule with

8 intervals.

b) Solve the subsequent system by Gauss - Elimination method

5x-2y+z=4

7x+y-5z=8

3x+7y+4z=10


8. a) Use Euler’s method to obtain y(0.1)y=x+y with y(0)=0

with h = 0.01.

b) Use Runge - Kutta method to obtain

y(0.2) in steps of 0.1

dy 2

x y

dx

= + with y(0)=1.

17



1. Write brief answers to the subsequent five x three = 15 Marks

a) elaborate Critical Constants? How are they obtained?

b) discuss the effect of temperature on the surface tension of

liquids? provide examples?

c) describe Enthalpy of a system discuss the effect of temperature

on heats of reactions?

d) What is the significance of Eutectic point?

c) describe order of reaction? provide examples of a 2nd order

reaction?

2. a) Drive the integrated form of Classius Clayperon formula

for liquid vapor equilibrium and explain any 2 of its

applications? eight Marks

b) elaborate azeotopic mixtures of liquids? discuss the principles

underlying the bractional distillation of such liquid mixtures?

7 Marks

3. discuss the phenomena of Surface tension and Viscosity of

liquids? define any 1 method for their determination”

15 Marks

Earning:   Approval pending.