BEL Placement Papers – Solved Question Paper with Solution Free Download

BEL Placement Papers

Those, who are going to appear in Bharat Electronics Limited written exam for recruitment on various posts can start their preparation with the help of BEL Placement Papers provided on this page.  Candidates can download PDF of BEL Solved Question Paper with Solution free of cost via online process.

Bharat Electronics Limited is all set to conduct written examination for those candidates, who had applied for appropriate posts.  Only those applicants will be called for further selection process, who will get qualifying marks in BEL written exam.

BEL Previous Year Question Paper 

With the help of BEL Solved Question Paper, applicants will get to know the scheme of examination and also they will be aware about the difficulty level of examination. you should prepare for exam as much as you can.

 You may download BEL Placement Papers from the beneath segment of this page, which is well tailored by the team of project www.recruitmentinboxx.com

BEL Placement Papers

BEL Placement Papers for CSE

1) In crystalline solids, atoms are stacked in a regular manner.

A.True

B.False

Answer: Option A

2) The temperature below which certain materials are antiferromagnetic and above which they are paramagnetic is called

A.Weiss temperature

B.Curie temperature

C.Neel temperature

D.None of the above

Answer: Option C

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3) In metals, the average drift velocity of electron per unit field is called mobility.

A.True

B.False

Answer: Option A

4) Ferrites have

A.a low copper loss

B.low eddy current loss

C.low resistivity

D.higher specific gravity compared to iron

Answer: Option B

5) In intrinsic semiconductors, the number of free electrons is equal to the number of mobile holes.

A.True

B.False

Answer: Option A

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6) In continuous filtration (at a constant pressure drop), filtrate flow rate varies inversely as the

A.square root of the velocity.

B.square of the viscosity.

C.filtration time only.

D.washing time only.

Answer: Option A

7) For sizing of fine materials, the most suitable equipment is a

A.trommel

B.grizzly

C.shaking screen

D.vibrating screen

Answer: Option  D

8) Which of the following is not categorised as a “mechanical operation” ?

A.Agitation

B.Filtration

C.Size enlargement

D.Humidification

Answer: Option D

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9) Which of the following is a pressure filter ?

A.Leaf filter (Moore filter).

B.Plate and flame filter.

C.Rotary drum filter.

D.Sand filter.

Answer: Option B

10) Tabular bowl centrifuges as compared to disk bowl centrifuges

A.operate at higher speed.

B.employ bowl of larger diameter.

C.can not be operated under pressure/vacuum.

D.can’t be used for separation of fine suspended solids from a liquid.

Answer: Option A

11) To have a file hold a list, it is necessary to

A.identify the records in the list

B.identify the name, width and type of the fields of each record.

C.decide which fields will be used as sort or index keys

D.All of the above

E.None of the above

Answer: Option D

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12) Sophisticated report generators can

A.print row-oriented reports

B.perform arithmetic operations

C.selectively retrieve and print portions of a list

D.All of the above

E.None of the above

Answer: Option D

13) Which command is used to remove a table from the database in SQL?

A.DELETE TABLE

B.DROP TABLE

C.ERASE TABLE

D.UNATTACH TABLE

E.None of the above

Answer: Option B

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14) A file produced by a spreadsheet

A.is generally stored on disk in an ASCII text format

B.can be used as it by the DBMS

C.can be used for graphic

D.All of the above

E.None of the above

Answer: Option A

15) Which of the following is true of a network structure?

A.It is a physical representation of the data

B.It allows a many-to-many relationship

C.It is conceptually simple

D.It will be the dominant data base of the future

E.None of the above

Answer: Option B

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BEL Placement Papers for EC

1) In the following non planar graph number of independent loop equations is

A.8

B.12

C.7

D.5

Answer: Option D

2) A transmission line has a characteristic impedance of 50 Ω and a resistance of 0.1 Ω/m, if the line is distortion less, the attenuation constant (in Np/m) is

A.500

B.5

C.0.014

D.0.002

Answer: Option D

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3) A radar receiver has a noise figure of 10 dB at 300 K having a bandwidth of 2.5 MHz. The minimum power it can receive is

A.3.45 x 10-15 W

B.1.38 x 10-15 W

C.7.5 x 10-15 W

D.93.15 x 10-15 W

Answer: Option D

4) In a semiconductor material. The hole concentration is found to be 2 x 2.5 x 1015 cm-3. If mobility of carriers is 0.13 m2/ v-s. Then find the current density if electric field intensity is 3.62 x 10-19

A.7.6237 x 10-4 A/cm2

B.7.6237 x 10-5 A/cm2

C.7.6237 x 10-3 A/cm2

D.none of these

Answer: Option A

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5) A MOSFET has a threshold voltage of 1 V and oxide thickness of 500 x 10-8 [εr = 3.9; ε0 = 8.85 x 10-14 F/cm, q = 1.6 x 10-19 c]. The region under the gate is ion implanted for threshold voltage tailoring. The base and type of impant required to shift threshold voltage to – 1 V are __________ .

A.8.6 x 1011/cm2, p-type

B.8.6 x 1011/cm2, n-type

C.0.86 x 109/cm2, p-type

D.1.02 x 1012/cm2, n-type

Answer: Option A

6) What is the propagation constant for air filled wave guide with dimensions a = 1.59″ and b = 0.795″ at 4.95 GHz?

A.0.6698

B.0.7698

C.0.503

D.0.6598

Answer: Option A

7) If x1[n]  x1(z) with ROC = R1 and x2[n]  x2(z) with ROC = R2 then ROC for x1[n] + x2[n] will be __________ (where Ri → Region of convergence and x1[n] and x2[n] are causal).

A.R1 ∩ R2

B.R1 ∪ R2

C.(R1 ∪ R2) ∩ (R1)

D.(R1 ∩ R2) ∪ (R1)

Answer: Option A

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8) Consider a unity feedback control system with open-loop transfer function  The steady state error of the system due to a unity step input is :

A.zero

B.K

C.1/K

D.infinite

Answer: Option A

9) Find ‘X’ in the circuit below :

f1(A, B, C, D) = Σ(6, 7, 13, 14);

f2(A, B, C, D) = Σ(3, 6, 7);

f3(A, B, C, D) = Σ(5, 6, 7, 14, 15)

1. p(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15)
2. 0
3. Σ(14)
4. 1

Answer: Option 3

10) As the temperature increases the mobility of electrons __________ .

A.decreases because the number of carries increases with increased collisions

B.increases because the number of carries decreases with decreased collisions

C.remains same

D.none of the above

Answer: Option A

11) The amplitude of a pair of composite sinusoidal signal y(n) = x1(n) + x2(n) with x1(n) = sin (5pn) x2(n) = 3 sin (5pn) is __________ .

A.2

B.3

C.4

D.1

Answer: Option A

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12) A n-channel JFET has IDSS = 2 mA, Gate to source voltage VGS = – 2 V and trans-conductance is 0.5 mW then pinch-off voltage is __________ .

A.- 2 V

B.2 V

C.- 4 V

D.4 V

Answer: Option C

13) His rather casual remarks on politics __________ his lack of seriousness about the subject.

A.masked

B.belied

C.cherish

D.conserve

Answer: Option C

14) The resolution of a 4 bit counting ADC is 0.5 volts. For an analog input of 6.6 volts, the digital output of the ADC will be

A.1011

B.1101

C.1100

D.1110

Answer: Option D

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15) An image uses 512 x 512 picture elements. Each of the picture elements can take any of the 8 distinguishable intensity levels. The maximum entropy in the above image will be

A.2097152 bits

B.786432 bits

C.648 bits

D.144 bits

Answer: Option B

Method of Selection:

Selection of candidates will made on the basis of their performances in:

• Written Exam/GATE EXAM
• Technical Interview
• HR Interview

Common Questions asked in BEL Technical interview & HR Interview

Technical interview

1. What is the band between the frequency 3MHZ to 30MHZ called?
2. What are the possible modes of wave propagation in that mode?
3. What is skip distance?
4. What is multipath propagation?Can you give another name for it? How will you overcome its effects?

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HR Interview:

1. What phrase do you use the most – Thank You or Sorry?
2. Tell me about yourself and why should we hire you when we can promote someone within the organization?
3. Are you willing to work irrespective of your domain and field of expertise?
4. What are your favourite topics in Electronics Engineering? What is the chief principle of RADAR?

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