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Placement Materials & Answers-Free Download


BSNL Placement Papers-Free Download

21. A two port network having a 6 dB loss will give

a. an output power which is one-quarter of the input power

b. an output power which is one-half of the input power

c. an output voltage which is 0.707 of the input voltage

d. an output power which is 0.707 of the input power

22. While transporting a sensitive galvanometer-

a. the terminals are kept shorted

b. critical damping resistance is connected across the terminals

c. the terminals are kept open circuited

d. it does not matter as to what is connected across the terminals

23. A T type attenuator is designed for an attenuation of 40 dB and terminating resistance of 75 ohms. Which of the following values represent full series and R1 and shunt arm R2?

1. R1 = 147W

2. R1 = 153W

3. R2 = 1.5W

4. R2 = 3750W

a. 1 and 3

b. 1 and 4

c. 2 and 3

d. 2 and 4

24. For a transmission line, the characteristic impedance with inductance 0.294mH/m and capacitance 60pF/m is

a. 49w

b. 60w

c. 70w

d. 140w

25. When the graph of a network has six branches with three tree branches then the minimum number of equations required for the solution of the network is

a. 2

b. 3

c. 4

d. 5

26. Consider the following statement for a 2 -port network

1. Z11 = Z22

2. h12 = h21

3. Y12 =-Y21

4. BC-AD =-1

then the network is reciprocal if and only if

a. 1 and 2 are correct

b. 2 and 3 are correct

c. 3 and 4 are correct

d. 4 alone is correct

27. As a network contains only independent current sources and resistors then if the values of all resistors are doubled then the values of the node voltages are

a. will become half

b. will remain high

c. will become double

d. cannot be determined unless the circuit configuration and the values of the resistors are known

28. The energy of electric field due to a spherical charge distribution of radius r and uniform charge density d in vacuum is-

Ans. 5.4x109xQ2/r where Q=4/3(pie.r3d

29. Maxwell's divergence equation for the magnetic field is given by

Ans. y

30. When a short grounded vertical antenna has a length L which is 0.05 l at frequency f and if it's radiation resistances at f is R Ohms, then it's radiation resistance at a frequency 2f will be

a. R/2 ohms

b. R ohms

c. 2R ohms

d. 4R ohms

1.Are you attending ----- reception today

A. a

B. an

C. the

D. no article

2.She wants to become ----- engineer

A. a

B. an

C. the

D. no article

(Qn No:3-5)Read the each sentence to find out whether there is any grammatical error in it. The error, if any will be in one part of the sentence. The letter of that part is the answer. If there is no error, the answer is 'D'. (Ignore the errors of punctuation, if any).

3. (solve as per the direction given above)

A. We discussed about the problem so thoroughly

B. on the eve of the examination

C. that I found it very easy to work it out.

D. No error.

4.(solve as per the direction given above)

A. An Indian ship

B. laden with merchandise

C. got drowned in the Pacific Ocean.

D. No error.

5.(solve as per the direction given above)

A. I could not put up in a hotel

B. because the boarding and lodging charges

C. were exorbitant.

D. No error.

(Qn No:6-8)Find the correctly spelt words.

6.(solve as per the direction given above)

A. Efficient

B. Treatmeant

C. Beterment

D. Employd

7.(solve as per the direction given above)

A. Foreign

B. Foreine

C. Fariegn

D. Forein

8.(solve as per the direction given above)

A. Ommineous

B. Omineous

C. Ominous

D. Omenous

(Qn No:9-12)In questions given below, a part of the sentence is italicised and underlined. Below are given alternatives to the italicised part which may improve the sentence. Choose the correct alternative. In case no improvement is needed, option 'D' is the answer.

9.The workers are hell bent at getting what is due to them.

A. hell bent on getting

B. hell bent for getting

C. hell bent upon getting

D. No improvement

10.When it was feared that the serfs might go too far and gain their freedom from serfdom, the protestant leaders joined the princes at crushing them.

A. into crushing

B. in crushing

C. without crushing

D. No improvement

11.If the room had been brighter, I would have been able to read for a while before bed time.

A. If the room was brighter

B. If the room are brighter

C. Had the room been brighter

D. No improvement

12.his powerful desire brought about his downfall.

A. His intense desire

B. His desire for power

C. His fatal desire

D. No improvement

(Qn No:13-15)In the following the questions choose the word which best expresses the meaning of the given word.

13. CORPULENT

A. Lean

B. Gaunt

C. Emaciated

D. Obese

14. BRIEF

A. Limited

B. Small

C. Little

D. Short

15.EMBEZZLE

A. Misappropriate

B. Balance

C. Remunerate

D. Clear

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