BEL Placement paper collection

BEL stands for Bharat Electronics Limited. The company came into existence in the year 1954, in Bangalore. It was established with an aim to meet the requirements of the defense services of our country. In course of time the company has developed itself to be a multi technology, multi product firm which serves the customers’ needs all over the world.
The company is known to employ the best talents of India. 


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BEL exam questions | BEL exam pattern | BEL sample questions

BEL is expected to have recruitment drive soon. As the number of aspirants  are in large numbers . We are posting some of the previously appeared questions. (only technical)

These were some of the topics given in 2010.

1. Antennas: Antenna lenths, types(vhf,uhf,yogi-gudi n other)
2. Satellites: Basics on Satillites, Satillite positions, Distance problems, Geo-synchronous Satillites
3. Radar : Basics on Raders, Tracking Raders, FW-CM Raders, MTI Raders
4. Microprocessors: 80286, Data n Adders lines(1-2 qns)
5. Networks : Resonance Frequency, Y-Delta problems, Nodal n Mesh Analysis, RLC n/w, power Calculations(p=v^2/R=I^2R=VI)
6. Control Systems : Transfer Function, Routh-Hurwitz Crierion
7. Op-amps : R and C connected op-amp o/p
8. Timers: IC(4000,4001,7485)
9. Capacitance n Inductance Formulas and its problems,Conductivity
10. Basic Electronics: p-n junction, FET, Oscillators, no.of electrons(germanium,silicon,arsenic,antinmoni remaining also....)
11. Electromagnitics : m(mue),mr, Maxwell,s equation, J= (Sigma)*E, Divergence, Wave guides.
12. 1-5 qns from Basics of normal operating systems(windows,unix,win98) n Control Networking
13. Digital Electronics : Flip-flops(j-k,T,D), Logic Gates
14.Communications : Detectors,S/N ratio.

Some of the questions:

1 . A Zener diode works on the principle of
ans: Tunneling of charge carriers across the jn. 

2. in an 8085,microprocessor system with memory mapped I/O:

(i) I/O device have 8-bit addresses.
(ii)I/O devices are accessed using IN and OUT instructions.
(iii)there can be a max of 256 input devices and 256 output devices.
(iv) airthmetic  and logic operations can be directly performed with the I/Odata.
ans : (iv) 

3. built-in potential in a p-n jn.-

(i)  is equal to the difference in the fermi level of the two sides,expressed in volts.
(ii)  increased with increase in doping levels of the two sides.
(iii) increase  with the increase in temp.
(iv) all the above.
ans : (iv) 

4. the breakdown voltage of a transitor with its base open is BV(ceo) and that with emitter open BV(cbo) then,
ans: BV(cbo)>BV(ceo) 

5. The gray code equivalent of binary 1100 is
a. 1011 b. 1101 c. 1010 d. 1100

6. A Multiplexer has
a. Multiple inputs and single output
b. Single input and Multiple outputs
c. Multiple inputs and Multiple outputs
d. Multiple inputs for Storage of Data

7. A binary half adder
a. Adds two binary digits and produces their sum and carry
b. Adds half the sum to the carry
c. Adds two binary digits and carry from previous addition
d. Adds two binary digits at half the speed 

8. The noise figure of a receiver is a measure of:
1. Excess noise generated
2. Bandwidth of the receiver
3. Gain of the receiver
4. Operating frequency

9. The ratio receiver is:
1. Direct detection type
2. Super regenerative type
3. Super heterodyne type
4. None of these 

10. Gain of an directional antenna 6db P=1mw find transmitted power………(use Ptr= G * P.) 

11. Multiplication of two nos 10101010 & 10010011 in 2’s complement form....

12 . A ckt is given suppplied with 15v with a series of resistance of 1k and a parallel combination of 12V zener diode and 2k  resistance. FInd current through 2k resistance.
Ans: 6mA 

13.  Resistivity of silicon in ohms cm. is approx. equal to 

a. 50           b. 1012         c. 230k            d. 10-6 

14. Rsistivity ofGermanium in ohms cm. is approx. equal to
a. 50        b. 10-12            c. 50k        d. 10-6 

15.  The number of free electrons/cubic cm intrinsic Germanium at room temperature is approx. equal to
a. 1.5*1010    b. 2.5*1013      c. 1000       d. 5*106 

TCS aptitude questions 2

TCS aptitude papers.

1. Two Pencils 8 cents 5 Pencils cost ( Ans 20 cents)

2.A work is done by two people in 24 minutes. One of them alone can  do it in 40 minutes. How much time will the other person will take to  complete it ( 60 minutes)

3. A car is filled with 4.5 gallons of fuel for a round trip . Car is taken 1/4 more than in going than coming up. What is the fuel consumed in coming up ? (2.0 gallons)

CHECK
4. Low temperature at the night in a city is more than 1/2 high as higher temperature are 100. Then What is low temperature (Ans 40)

5. Person who dicided to go to weekend trip should not exceed 8 hrs  driving in a day. Average speed of forward journey is 40 miles/hour .  Due to traffic in sundays ,in return journey average
speed is 30mph .  How far he can select a picnic spot ? (ans 240 miles)


6. A sales person multiplied by a number and get the answer 3. Instead of that number divided by 3. What is the answer she actually has to get. (1/3) * 1 *3 =3 so the no= 1 divided by three. The
answer =1/3

7. A ship started from port and moving with 'I' miles/hour and other ship started From L and moving with 'H' miles/hour .At the place where these two ships will meet. (ans L*I*H)/(H+I)

8. A building with height D shadows up to G. A Neighbour building  with what height shadows C feet. (ans CD/G)

9. A person was fined for exceeding the speed limit by 10mph. Another  person was also fined for exceeding the speed limit by twice the same. If the second person was travelling at speed of 35mph . Find the speed limit (ans. 15mph)

10. A bus started from the bus stand at 8 Am and after staying 30 minutes at a destination return back to the bus stand.The Destination is 27 miles from the bus stand . The Speed of the bus is 18mph . In the return journey the bus travells with 50% fast speed.At what time it is return to the bus stand (1 p.m)

TCS aptitude questions 1

1)In a well of 20feet depth, a frog jumps 5feet up in the morning and comes 4feet down in the
evening,on which day the frog gets out of the well.
__________________________________________________________________________________
2)Next number in the series:
77,49,36,18,?
answer 8
(7*7=49)(4*9=36)(3*6=18)   (1*8=8)
_________________________________________________________________________________
3)A & B are playing a game .There are 8 oranges in a row on the table.one Player can take 1-4
oranges in a pick (a maximum of 4),one who picks the last orange wins the game.'A' plays first
How many oranges should he pick first time inorder to win the game.
answer 3.
_________________________________________________________________________________
4)9/10 or 10/11 which is greater.
__________________________________________________________________________________
5) (x-y/3)-(y-x/3)=?
__________________________________________________________________________________
6)x:y=3  and x+y=80 what is the value of y?
answer y=20
__________________________________________________________________________________
7)Average of 5 number is -10 sum of 3 numbers is 16,what is the average of other two numbers?
answer -33
__________________________________________________________________________________
8)16 litre can, 7 litre can,3 litre can,the customer has to be given 11 litres of milk using
all the three cans only explain?
______________________________________________________________________________
9)A car has run 10000 miles using 5 tyres interchangably,To have a equal wornout by all tyres
how many miles each tyre should have run.
answer 4000 miles/tyre
__________________________________________________________________________________
10) 8 to the power of x is 32,what is the value of x?
__________________________________________________________________________________
11) 12 Blacksox and 12 Whitesox mixed in a box,a pair of sox is picked at a time,in which pick/
how many pick ,to get the right pair(black&black or white&white)?
__________________________________________________________________________________
12)Two coins one with HEAD IN BOTH SIDES  and the other coin HEAD IN ONE SIDE AND TAIL IN THE
OTHER SIDE  is in a box,a coin is taken at random and FOUND HEAD IN ONE SIDE .what is the
probability that THE OTHER SIDE IS HEAD?
_______________________________________________________________________________
13)A man shapes 3 cardboards in 50 minutes,how many cardboards does he shape in 5 hours?
answer 18cardboards.
__________________________________________________________________________________
14)How many 3 digits with 3 Distinct digits are there from 100-1000.
__________________________________________________________________________________
15)Three men goes to a hotel to stay ,the clerk says $30 per room/day so all the three plans
to stay in one room so each pays $10.After some time the clerk realises that he made a mistake
of collecting $30 but the room cost only $25,there fore he decides to return $5 to them
so he calls the roomboy and gives him $5 asking him to return.The roomboy keeps $2 with him
and he returns only $3($1 for each).
Now Totally all have paid $9 each($27)+rommboy $2 which is equal to $27.where did $1 go,who
has made the mistake?

guys post answers in comments...

Facebook offers Rs 38 lakh package for IIT Madras students

Social networking site Facebook has offered a package of Rs 38 lakh (USD 85,000) for IIT Madras students during the ongoing placement season, a top official of the institute said. Companies selecting prospective candidates from the country''s premier educational institute IIT Madras began on December 1.

However, Facebook leads the chart with a package of Rs 38 lakh, IIT Madras Advisor (Training and Placement) N Ramesh Babu said. "Every year, the selection process commences in December and this time too it began on December 1," he said.

Every year students eagerly await to participate in the campus selection and this year too more than 260 companies have registered so far, he said, adding, "But we expect it to cross 300 companies." Asked on the selection processes, he said the final round of interview would be done later.

"For example, Facebook after conducting all the rounds, will conduct another interview via Skype from the US and when a student gets selected he/she will be offered USD 85,000 package," Babu explained. He said around 1000 students from various streams including B Tech, MTech, MS, Doctoral programmes, MBA, have registered for placements this year and so far around 30 students have received offers from various multi-national companies including Goldman Sachs, IBM and Boston Consulting Group.

Last year the highest package was offered by Tower Research Capital at Rs 28 lakh per annum and about 225 companies had visited the institute for selecting 700 candidates. This time, while the leading package was offered by Facebook, an oil company has offered to pay a package of Rs 28 lakh, he added.

source:Facebook offers Rs 38 lakh package for IIT Madras students - Yahoo! India News

Daily puzzles 1

For those who are interested in solving the puzzles .we are starting the "Daily puzzles" posts from Today. If you got answers reply us in the comment box below the post. The solutions will be posted on the next day in the comment box. So get ready guys!!!!

1.You are given two candles of equal size, which can burn 1 hour each. You have to measure 90 minutes with these candles. (There is no scale or clock). Also u r given a lighter.

2. How will you measure height of building when you are at the top of the building?And if you have stone with you.

3.You have 100 doors in a row that are all initially closed. you make 100 passes by the doors starting with the first door every time. the first time through you visit every door and toggle the door (if the door is closed, you open it, if its open, you close it). the second time you only visit every 2nd door (door #2, #4, #6). the third time, every 3rd door (door #3, #6, #9), etc, until you only visit the 100th door. what state are the doors in after the last pass? which are open which are closed?

4.A mad bomber is out on the job, making bombs. he has two fuses (pieces of string) of varying thickness which each burn for 30 seconds. unfortunately he wants this bomb to go off in 45 seconds. he can’t cut the one fuse in half because the fuses are different thicknesses and he can’t be sure how long it will burn. how can he arrange the fuses to make his bomb go off at the right time?

5.A one armed surgeon with a hand wound needs to operate on three patients. the surgeon only has two gloves. how can he operate on the three patients in turn without risking exchange of fluids? (remember he only has one arm so he only needs to wear one glove at a time.)

The solution will be posted tomorrow..:)

TCS model question papers

TCS is hiring soon.  this is the  model question format of the TCS.Below include 15 image files with 15 model question. Prepare well for these ,questions that appear will be in this format.
Thanks to Placement secretary - Mr. Pradyumna for providing this.
you may also download this at Pradyumna's blog FUTURE DREAMS

                                                   [click on each image to enlarge]

Delloite company profile

Deloitte is visiting  SJCE on sep 14th and 15th .so here is the company's profile for you.

Deloitte is one of the world's top accounting and professional services firms. The firm provides audit, tax, consulting and financial advisory services to companies and organizations.

With headquarters in the U.S., Deloitte is part of a global network of firms in 150 countries under the name Deloitte Touche Tohmatsu.

In 2005, the global network had $18.2 billion in total revenues, a 10.9% increase. 

The U.S. division generated $7.8 billion in revenues in 2005. Audit and enterprise risk services made up 44% of U.S. revenue and 30% from consulting.

HFCL placement papers

HFCL or Himachal Futuristic Communications Ltd. is Telecom Networking Company. The Vision of HFCL is to provide futuristic telecom solutions and that too cost effective. The company is focusing on to maintain a strong leadership for long term growth. The HFCL is also planning to offer services such as interactive video, broadband data, video on demand. This Telecom Company is all set and geared up for the future generation and to provide them superior solutions in telecom networking. This company is grooming with each passing day and is recruiting fresh Engineering graduates from different colleges for the growth of this company.

http://placementpapers.net/helpingroot/HFCL/HFCL-Placement-Paper-Questions

http://placementpapers.net/helpingroot/HFCL/HFCL-Placement-Paper-Technical

http://www.vyomworld.com/placementpapers/HFCL-placement-paper-1.asp

http://placementpapers.net/helpingroot/HFCL/HFCL-Campus-Placement-Paper-Aptitude-Technical

http://forums.sureshkumar.net/hfcl-placement-papers/18134-hfcl-placement-paper-2-a.html

http://www.123eng.com/placementpapers/hfcl.html

450 infosys puzzles

Please click on the above image to start downloading the 450 INFOSYS puzzles bundle.