BEL Latest Placement Papers and BEL Interview Questions or BEL Sample Question Papers is as follows. You can check here BEL Latest Placement Papers 2007 and BEL Interview Questions or BEL Sample Question Papers.
BEL Latest Placement Papers and BEL Interview Questions :
150 ques.. out of which 30 were of apti & 120 technical apti 9 (tough as compared to ISRO)
question from analog electronics, digital electronics, network, F & W, signal, Control etc…..
1) In analog question based on zener diode
2) Coupling capacitors and bypass capacitors affect
3) 1, 8, 27, 64,125, which among the following will not come in the series
a.1000, b.729 c.259
4) Which of the following game uses bulley
a.football b.cricket c.goalf.. d.hockey
5) a zener diode works on the principle of
6) under the high electric field,in a semiconductor with increasing electric field
7) in an 8085, microprocessor system with memory mapped I/O
Built-in potential in a p-n jn.-
9) The breakdown voltage of a transitor with its base open is BV(ceo) and that with emitter open BV(cbo) then
10) ques based on half adder
11) Based on flip flop
12) Block diagram reduction
13) To find max overshoot (2 ques based on it)
BEL PAPER – 13 MAY 2007 – BANGALORE
1. Which of the following game uses bulley
a.football b.cricket c.goalf.. d.hockey
2. Coupling capacitors and bypass capacitors affect
Ans:Only affect the lower cut off frequencies
3.1,8,27,64,125,
which among the following will not come in the series
a.1000, b.729 c.259 placementpapers.fresherjobs4u.com
Hint:1³, 2³, 3³, 4³,5³,….. the series is like that
4. One image question.
The question is RC coupled amplifier with a feed back network in between Collector and Base. Which type of feedback is this?
a.Current series b.Voltage shunt C. voltage series d current shunt
Ans: Voltage shunt
5.Block reduction of control system(simple)
6. Settling time of Control system. Given the transfer function.
Ans== 4/?wn<!–[if !vml]–><!–[endif]–>
7. Dual of a logical expression
8. Particular Integral of homogenious eqn
Another:-
paper Pattern–> it was really a difficult pattern..150 questions in 2:30 hr.
Technical questions were mainly frm
C (2 basic question like Abstract data type??),
Data strucrture (basic questions and numericals),
CBNST (2 numericals like lagrng’s thrm),
DAA (numerical+theory),placementpapers.fresherjobs4u.com
Autometa (CFG, pushdown,),
OS (sheduling Algo numericals),
Computer Organization (DMA, CPU related, memory, speed related numericals),
Networking (TCP, UDP Gatway etc),
Discreate Structure (numrcls frm Group),
Matrix (finding rank).etc
Numerical questions wr mainly askd.
And Non Verbal Aptitude was lil bit easy …. refer frm RS AGRWAL..questions wr frm English (RC), Grammer(fill in the appropriate word), Infrence, DI..etc
There were 150 questions (30 questions from general awareness, reasoning and English) nd remaining questions frm technical
e.g. three ques based on the passage & english.
1) 1,8,27,64,125…
Which element does nt belong to the above series.
(i) 259 (ii)729 (iii) 1000 (iv) 512. ans:(i)
some technical questions
(1)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)
(2)a zener diode works on the principle of
ans:tunneling of charge carriers across the jn.
(3) Under the high electric field, in a semiconductor with increasing electric field-
ans:the drift velocity of charge carriers saturate.
(4) 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)increse with the increase in temp.placementpapers.fresherjobs4u.com
(iv)all the above.
ans : (iv)
(5) in an 8085, microprocessor system with memory mapped I/O:
(i) I/O device have 8-bit addresses.placementpapers.fresherjobs4u.com
(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)
Note: mostly quetions frm basic electronics, control systems and network systems
