1. if x= sin-1(t), y = log(1-t2), find d2y/dx2 /
t=1/2 and -8/3.
2. Element having same atomic number and different mass number.
3. 1+1(1+1/n)+3(1+1/n)2+......=?
4. 17,21,25,....... And 16,21,26.... .. sum of the common
hunderd common terms.
Ans(101100).
5. X,y,z are senior engineers. A,B,C,D are junior
engineers. Company wants to select 4 enginers. Two
will be senior and two
will be juniors. Y is not front to A, Z is not front
to C, B is not front to A, B is selected then who will
be 4 members ?
6. A speaks 70% of truth , B is speaking 80% truth
.prob. that both are contradicting each other is ?
7. Integration of (2x-3)/((x^2 +x+1)^2 dx is ?
8. Rams is starting from north walking 2 km and turn
right walk 4 km and turn right walking 4 km again,
turn walked 4 km . Suchi walking opposite to Rams .
a.) what will be the distance of Rams direction Suchi ?
?
b.) D.B.T starting and finishing positions. ?
9. If dy= (sec x+ y tan x)dx , then solution is :
10. X^2 -3x +a , the roots (0,1) then value of a is ?
11. A and B's temp. 10 c and 20 c having same surface
, then the ration of emmisions is ?
12. X>0, X^2-1 =0 , X^3 +1 =0 , condition for x>0 ?
13. 2 persons have to select from 1 to 25 then , the
prob. For not selecting the same number ?
14. there are 10 ques divided into two groups each
containing 5 ques. A and B select max of 4 numbers
from their respective groups . num of ways to select 6
quiestions I s ?
15. A system P1,T1 is transferred to P2,T2 condition
in two forces then which remain constant during the
two process. ?
16. An atomic particle exists and particle decay rate
. it is in a train , when the train moves a person
observes for whether the decay rate a.) increases b.)
decreases c.) depend on the directions of movement of
train ?
17. C=40% , H=6.7%, O=53.6% . what is the emperical
formula for this compoud .... CH2O (ans)
18. Which of the following exchanges positive ions
...cl-, nh2- ? (ans nh2-*)
19. What is an ideal solution ?
20. if x -> infinity , integration e^x dx / int e^2x
?
21. cemeatite is represented by ?
22. dead zone in control system means ?
23. warping can be avoided by ?
24. to produce very precise drawing , you would use ?
25. after execution of CMP, a instruction in Intel
8085 microprocessor...
a.) ZF is set and CY is reset.
b.) ZF is set CY is unchanged
c.) Zf is reset, CY is set
d.) ZF is reset , CY is unchanged .
1.) two bodies changed from P1V1 to P2V2 states in two
ways , the heat supplied is delta Q and work done is
delta W . What is the constant in these two rocess.
a.)delta Q
c.) delta W
d.) Delta Q+delta W
e.) DeltaQ-deltaW
2.) When a free electron is placed in a plane of EM
then it moves in a.) in the direction of Electriv
field.
b.) in direction of magnetic field
c.) of propogative waves.
e.) of the plane containing magnetic field an
propogation direction.
3.) which is not an ideal soln. ? ( Water + ethanol)
4.) the element which have same atomic mass and atomic
number are called ....ans= isomers.
5.) Name the phenomean in wich 1 photon is jumped from
1 isomer to another to create two different elts. A.)
functional isomers.
b.) stereo isomers c.) tauto isomers or d.) penta
isomers ?
6.) in the below compounds which one has 40% C 6.7% H,
53.3% O . what is it'sperical formula ? Ch2O
7.) X rays are coming from a X ray tube . a.)
wavelength is below the certain wavelength . b.) above
c.) in between D.) out of ?
8.) In triod valve in order to increase the
saturation current what has to be done? A.) increase
plate voltage b.) reduce dist. Between grid and plate
c.) increase cathode potential d.) reduce grid
potential. ?
9.) Seven different toys are distriubuted among 3
children . how many ways ?
10.) A,B and C are three speakers . they have to speak
along by another % speakers in a function. A has to
speak before B, B has to speak before C How many ways
?
11.) Periods of sin( 2pi +3)6pi ?
12.) Series..... 16 , 21 , 25, and 17 , 21, 25 . what
is the sum of first hundred common nos . ?
13.) There are two section in a paper, each contains
five questions . student has to answer 6 ques. Max no.
of questions that can be answered from one section is
4. How many ways ?
14.) A and B are two nos. selected randomly from
(1,2,3,25) . what is the prob. That A and B are equal
?
15.) 1+2(1+1/n) +3(1+1/n)^2 . find sum of n nombers ?
16.) two circles of different radii intersect each
other . what is the no. of max intersections ?
17.) X=sin^-1 t and Y=log (1-t^2) then find d^2y/ Dx^2
? (t=1/2)
18.) Fx= 1-cos(1-cosx) / x^4 .... Is continuos at f(0) .
then what is X?
19.) In round robin scheduling if time quantam is too
large , it becomes ? (FCFS ...ans)
20.) the best tool for editing a graphic image is ?
21.) network scheme define a.)one to one b.) many to
many c.) one to ,many ?
22.) based on optimal LRU page replacement algo ?
23.) in 8085 after CMP , a what happens ? ( ans....Z
set and C reset.)
ELECTRONICS.
1.) questions on dopping effect...
2.) concentration and restivity . asked for
conductivity ?
3.) given Ft , Cbe ask for Gm and Rbe, . when a
stone bridge made by R and C, what is frequency ?
4.) T resistance C is given find F and Q on crystal ?
5.) Critical fequency and angle theta is given ...find
max useable frequency ?
6.) Two questions on parabolic reflector on anttena ,
half wave diocole design ?>
7.) Ramp signal is generated from integrator...whether
it is l;ow or high RC.?
8.) Calculate FM bandwidth given max modulation
fequency FM , max freq deviation , delta F and 8 pairs
alllowable side band component ?
9.) In electronics devices circuits, communication ,
anttena , propogation of waves and EMI ?
10.) A line passes throgh (1,0) . what is line
equations ?>
11.) A ques is like this a done work in 3 days a nd b
can do in 2 days ...
12.) one U-230 nucleus ois placed in a train moving by
velocity emmitimg alpha rays . when the train is at
rest the distance between nucleus and alpha particle
is x . one passenger is observing the particle .
whenthe train is moving what is the dist. Between
particle and nucleus ? a.) x. b.) x+vt
c.)x-vt ?
12.) what is the resulting soln. When benzene and
toluene are mixed ?
13.) one ques on ordering the given chemicals based on
their acidity ?>
14.) one ques on reaction of benzene ferric cloride
and other chemicals ?
15.) one receiver is placed above the emmmiter and the
emmiter is emmiting the electrons . if Elec field is
applied in the direction opposite to follow then
velocity of electron will increase . kinetic energy
will increase ..........
16.) A question on photo multipliers ?
17.) A ques on motion of electrons in electro magnetic
field ?
18.) A company requires 55 programmers and 25 system
specilists . 10 must do both . how many programmers
the company must recruit computer sc ?
19.) What sorting algos have their best and worst case
times equal ?
20.) What page replacement algo . has minimumn no. of
page faults ?
21.) What is the use of abstract base class ? in C++ ?
That's it...
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