Robert Bosch Placement
Paper
Paper Type : Whole Testpaper
Test Date : 23 September 2006
Test Location : Bangalore
ROBERT BOSCH PLACEMENT PAPER ON 23rd SEPTEMBER 2006 AT
BANGALORE
Position: Associate Software Engineer
Eligible: Above 70%
Branches allowed: ECE, EEE, IT (Instrumentation)
Venue: Bangalore (Hosur Road, Koramangala)
Test Duration: 1 hour 30 minutes
Test Pattern: 2 sections namely
a) Technical(45 questions)
b) General Aptitude(35 questions)
Hi friends,
Technical section mainly comprises of questions from BASIC
ELECTRONICS and C
What I suggest you is go through BASIC ELECTRONICS once
(There is text book available for 1st /2nd semester students
studying under VTU syllabus).You will come to know about
type of questions appearing by looking at following
questions.
SECTION 1(TECHNICAL)
1. There was a figure of JK flip flop in which ~q is
connected to J input and K=1. If clock signal is
successively applied 6 times what is output sequence (q=?)
a) 101010 b) c) and d) some other 6 digit sequences
2. Frequency response of a filter is
a) Range of frequencies at which amplification of signal is
employed.
b) Output voltage versus frequency (plot)
c) Filter which suppresses particular frequency
d) Some other choice
3. Gain and bandwidth of an op amp is
a) Independent of each other
b) Gain decreases as bandwidth decreases
c) Gain increases as bandwidth increases till some extent
after which stability decreases
d) Some other choice
.
4. There was a figure of 4:1 MUX in which A and B are select
lines. Inputs S0 and S1 are connected together and labeled
as C where as S2 and S3 are connected together and labeled
as D.Then which of the following is true?
a) Y=B+C
b) Y=A+B
c) Y=A+B
d) Y=C+D (Where Y is the output)
5. In step up transformer (or Step down… not sure)
transformation ratio is 1:5. If the impedance of secondary
winding is 16 ohm then what is the impedance of primary
winding?
a) 80 b) 3.2 c) and d) some other choice
6. There was a circuit consisting of AC voltage source and
one inductance. Inductance value=0.2mH (or 0.2uH or 0.2H not
sure).AC voltage =150 sin (1000t).what is the current
flowing in the circuit?
a) i= 7.5 sin (1000t)
b) i= 7.5 sin (1000t)
c) i= 7.5 cos (1000t)
d) i= 7.5 cos (1000t)
7. Power gain of an amplifier having i/p gain of 20W and
output gain of 20mW is
a) 60 b) 25 c) 10 d) some other choice
8. There was a RC circuit given with AC voltage
source.Expresssion for capacitance was asked for charging
condition.
Choices were somewhat like this: a) some value multiplied by
exp (t/T)
c) some value multiplied by 1 exp (t/T)
9. 2’s complement of 17
10. Instrumentation amplifier is used
for?
11. In “ON CHIP” decoding memory can be decoded to
a) 2^n b)2^n +1 c)2^n 1 d) some other choice
12. Half of address 0Xffffffff is
a) 77777777 b) 80000000 c) 7FFFFFFF d) some other choice
13. Which one of the following is used for high speed power
application?
a) BJT b) MOSFET c) IGBT d) TRIAC
14. One question related with SCR rotation angle
15. SCR is used for
a) To achieve optimum (or maximum ...not sure) dv/dt
b) For high current ratings
c) To achieve high voltage
d) Some other choice
16. State in which o/p collector current of transistor
remains constant in spite of increase in base current is
a) Q point b) Saturation c) Cut off
17. 16 bit monosample is used for digitization of voice. If
8 kHz is the sampling rate then the rate at
which bit is transferred is
a) 128 b) 48 c) d)
18. To use variable as recursive, variable should be used as
a) Static b) Global c) Global static d) Automatic
19. Question related with successive approximation ADC
20. Question related with resolution of DAC
21. main ()
{
int a=0x1234;
a=a<<12;
a=a>>12;
printf (“%x”, a);
}
What is the output?
a)1000 b) 2000 c) d) None of these
22. What does (*fun () []) (int) indicate?
a) pointer to an array of 4 integer functions
b) c) d)
23. #define A 10+10
main ()
{
int a;
a=A*A;
printf (“%d”, a);
}
a) 100 b) 200 c) 110 d) 400
24. One more question related with ADC
25. Question related with serial in parallel out shift
register…What is output sequence?
(This was question appeared in GATE exam…So go through GATE
BOOK)
Answer for this might be 1010
26. Given one RLC circuit in which values of R, L and C were
given. What is the value of frequency f?
27. if (fun ())
{
X++;
}
X gets incremented if and only if
a) Value of fun () is 1
b) Value of fun () is any value other than 0
c) Value of fun () is greater than 1
d) Some other choice
28. In dynamic memory
a) Power dissipation is less than that of static memory
b) Clock is needed
c) Refreshing is required
d) All the above
29. Short, int and long integers have how many bytes?
a)2,2,4 b)Machine dependant c)2,4,8 d)Some other choice
30. A (n) is filter combination of
a) Active b) Passive c) d)
31. Mobility of electron is
a) Increases as temperature increases
b) Decreases as temp decreases
c) Independent of conductivity
d) Some other choice
32. Structure comparison is done
a) Automatically
b)structcmp is used
c) No automatic function exists
d) Some other choice.
33. The system in which communication occurs in both ways
but not simultaneously in both ways is
a) Half simplex b) Simplex c) Half duplex d) duplex
34. main ()
{
int a=5, b=6;
int i=0;
i=a>b? 1:0;
printf (“%d”, i);
}
a) 0 b) 1 c) d)
(Note: The output is 0 in this case. If ‘a’ is greater than
‘b’ (For ex: a=5 and b=4, then o/p is 1)
35. int fun (char c)
{
int i;
static int y ;}
a) c, i are stored in stack and y stored in data segment
b)c stored in stack and i,y are stored in data segment
c) c is stored in text segment, y in data and i in stack
36.main ()
{
int *p;
short int i;
p= (char *) malloc (i*10); (code was showing error here)
p+=10;
printf (“%d”, p);
}
Value of p?
a) b) c) d)
(Note: When I checked this code at home it was giving error
as “Cannot convert char * to int *
I have modified coding as p= (int *) malloc (i *10), Then I
got o/p “p=1496”)
37. main ()
{
int *p,i[2]={1,2,3};(Note: Some values were given )
p=i;
printf (“%d %d %d”, i [0],*p,*p+1);
}
a) b) c) d)
SECTION 2(APTITUDE)
1. Given 0
a) (a+b)/(c+d) b) (b+c)/ (a+d) c) (c+d)/ (a+b) d) (a+c)/ (b+d)
2. A and B starts moving from points X and Y simultaneously
at a speed of 5kmph and 7kmph to a
destination point which is of 22km from points X and Y. B
reaches Y earlier than A and
immediately turns back and met Z. Find the distance XZ.
3. Area of lateral surface of a cone given height and
radius.
4. Ann is shorter than Jill and Jill is taller than Tom.
Which of the following inferences are true?
a) Ann is taller than Tom b) c) d) Data insufficient
5. A and B starts from same point at opposite direction.
They will move 6km and take 8km left. How
Far is A and B from each other?
6.6440(Not sure of this number) soldiers are to be arranged
in the shape of square. If 40 soldiers were kept out then
the number of soldiers making each straight line is?
(Question was like this somewhat)
7. If x>5 and y<1 then which of the following is true?
a) b) c) d) (Choices were some mathematical expression)
8. Sum of squares of two numbers is 404 and sum of two
numbers is 22.Then product of two
Numbers?
a) 20 b) 40 c) d) (Answer is 40. Two numbers are 20 and 2)
9. In an examination 4 marks are assigned for correct answer
and 1 mark is deducted for wrong
answer. However one student attempted all 60 questions and
scored 130.Number of questions he
attempted correct is?
a) 35 b) 42 c) d)
10. Each ruby is of 0.3 kg and diamond is of 0.4 kg.Ruby
costs 400 crores and diamond costs 500
crores.Ruby and diamonds have to be put into a bag. Bag
cannot contain more than 12 kg.Which of the following gives
maximum profit (or in terms of wealth) (In crores)
a) b) c) d)
Finally there were 10 (or 15) questions of English section
(Which was included in aptitude section itself).Pattern of
English section was like
1. Correcting the sentences
2. Given one passage. We are supposed to answer the
questions given on the passage
3. Nearest meaning of highlighted word... 



