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Home » Placement Papers » Bosch Placement Papers » Bosch P lacement Paper- 17th FEB,2007

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Bosch P lacement Paper- 17th FEB,2007


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hai, I am pradeed. here I am submiting ROBERT BOSCH question paper. There will be seperate papers for ELECTRONICS students and COMPUTER students. Here which I submited is for ELECTRONICS students

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=?)
d) 010101 

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

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

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+C
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 

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) 0

8. There was a RC circuit given with AC voltage source. Expression for capacitance was asked for charging condition. Choices were somewhat like this: a) some value multiplied by exp (-t/T)
ans --c i= (Vs/R)exp(-t/ T)

9. 2’s complement of -17 
ans -- 01111

10. Instrumentation amplifier is used for--------- --?
a). effective shielding
b). high resective filters
c). high common mode
d). all the above.

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 given ifring angle is 30degree
ans - 150degree

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. A 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. what is the resonant frequency of parrel RLC circuit of R= 4.7 komh L= 2 micro Henry and c=30pf.
a). 20.5 MHz
b). 2.65 KHz
c). 20.5 KHz
d). none

20.for the parallel circuit (one figure is given) Is= 10mA. R1= 2R, R2=3R, R3= 4R. R is artritary
a). 3.076mA
b). 3.76mA

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?
ans...b). an array of pointer to a functions that an int as parameter and return int.

23. #define A 10+10
main ()
{
int a;
a=A*A;
printf (“%d”, a);
}
a) 100 b) 200 c) 120 d) 400

24. One more question related with ADC like voltage is 8 volts. freqency 2 Mega hz. what is the converssion rate 

25. Question related with serial in parallel out shift register…What is output sequence?
Ans..... 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) fun () returns 0
b) fun () return 1
c) fun () return -1
d) return a value other than 0

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) Passive b) Active c) AMPLIFIER d) BOOSTER

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). yes
b) no
c) compiler dependent
d)

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? a:b;
printf (“%d”, i);
}
a) 0 b) 1 c) 6 d)

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?

37. main ()
{
int *p,i[2]={1,2, 3};
p=i;
printf (“%d %d %d”, i [0],*p,*p+1) ;
}

38. F = A'B' + C' + D' + E' then
A) F = A+B+C+D+E
B) F= (A+B)CDE
C) F = AB(C+D+E)
D) F= AB+C+D+E

39. how would you insert pre-written code into a current program?
a) #read<>
b) #get<>
c) #include<>
d) #pre<>

40.structure may contain
a) any other structure
b) any other structure expect themselves
c) any other structure except themselves and pointed to themselves
d) none of the above

41. three boys x,y,z and three girls x,y,z... sit around a round table . but x does not want any girl sitting to him and girl y does not want any boy sitting next. how many ways can they be seated.
a) 2
b) 4
c) 6
d) 8

42. k is brother of n and x. y is the mother of n and z is is the father of k . which of the following statement is not definitely true.
a) k is the son of z.
b) y is the wife of z.
c) k is the son of y.
d) n is the brother of x.

43. find the lateral surface of a prism with a triangular base if the perimeter of the base is 34 cm. and the height is 45 cm.
a) 765 square cm.
b) 3060 square cm.
c) 1530 square cm.
d) none

44.Given a< b< c < d . what is the max ratio of given equation
a) (a+b)/(c+d) 
b) (b+c)/ (a+d) 
c) (c+d)/ (a+b) 
d) (a+c)/ (b+d)

45. 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 27 km from points X and Y. B reaches Y earlier than A and immediately turns back and met Z. Find the distance XZ.
ans.... 22.5 km

46. 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

47. 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?
ans ...20m

48.6440 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? 
Ans --80

49. 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)

50. 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) 38 c) 42 d) 35

51. 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)
ans ...only ruby 40p

52. the cpu stack is placed in ....
a). cpu resister
b). RAM
c). ROM
d). hard disk

53). (10 | 7) would produce
a). 17
b). 3
c). 11
d). 15

ENGLISH section
fill in the blanks...... .. the answers is 
61) a). impounded b). protected c). hounded d). relegated.
62).a). oblinion b). authertiory c). dejection d). deso.......
63).a). subdued b). bountiful c). tentative d). ardem.
64).a). b). esulcant c). emblerratie d). innate
65).manor -- d). n. the landed estate of a land or nobleman.
66).neologism -- c). n. giving a new meaning to an add word.
67).batten -- b). n. a narrow strip of wood.
68).tepid -- d). adj. lacking interest enhusi...., luewarm
69. discerning -- d). adj. distinguishin one thing from another, having good judgment

d)..........

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