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BSNL Electronics Communications Interview Questions
Questions Answers Views Company eMail

Oscillator crystal are made of a.) Silicon b.) Germanium c.) Quartz d.) None

5 11278

For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel

11 14427

. If we have a parallel plate capacitor of plate area 'A' and plate separatoin t and having a capacity C and a metallic plate r of area A and of negligible thickness is introduced in the capacitor at a distance from either of the two plates as shown in the given figure then the capacity of the capacitor will become a.) b.) C c.) 2C d.) 4C

3 5145

. A superconductor is a a.) A material showing perfect conductivity and Meissner effect below a critical temperature b.) A conductor having zero resistance c.) A perfect conductor with highest di-magnetic susceptibility d.) A perfect conductor which becomes resistance when the current density through it exceeds a critical value

1 4771

When an inductor tunes at 200 KHz with 624 pF capacitor and at 600 KHz with 60.4 pF capacitor then the self capacitance of the inductor would be a) 8.05 pF b) 10.05pF c.) 16.01pF d.) 20.01pF

3 6061





Sparking occur when a load is switched off because the circuit has high a.) Inductance b.) Capacitance c.) Resistance d.) None

14 31624

Sparking between contacts can be reduced by inserting a a.) Resistance in the line b.) Capacitor in series with contacts c.) Capacitor in parallel with contacts d.) None

4 11849

RF amplifier of an A.M. receiver is normally biased in a.) Class 'A' b.) Class 'b' c.) Class 'C' d.) None

5 11427

The Entropy of the source is maximum when the symbols are...................?

956

Any idea of BSNL, JTO paper?

1033

modern capacitors which have high capacitance in small size use a dielectric of?

4 7014

the maximum spectral response of the germanium and silicon is in the ?

3 7188

6dB pad introduces how much attenuation?

3 7602

What is the most common modulation system is used for telegraphy?

6 14488

IS THERE ANY COADING PRESENT IN EPBX SYSTEM? IF YES THEN HOW WE CAN INSTALL IT?

1 2110

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Un-Answered Questions

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Define ng-if, ng-show and ng-hide.

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What is puppet server?

64






What is a lambda expression ? What's its use ?

65


What is session php?

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I understand that urine can act as a reagent to break disulfide bonds? I am particularly interested in bonds between cysteines. and or any other amino acids.

544


Write the expression for discrete convolution.

52


How to use multi select picklist as a filter while fetching data using soql?

13


What is the difference between Procedural (Scripting ) Vs Programming Language?

5


Explain the difference between web.config and machine.config and where it will be ?

49


what do you mean by exception handling in C++?

88


How do you check the presence of the key in python dictionary?

97


How will you get the amount of free memory on the server in which Node.js application is running?

13