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Electronics Communications Interview Questions
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Oscillator crystal are made of a.) Silicon b.) Germanium c.) Quartz d.) None

BSNL,

5 13097

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

Balaji, Bhel, BSNL,

11 19456

. 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

Bhel, BSNL,

3 6673

. 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

BSNL,

1 5783

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

BSNL, EFF, Satyam, Wipro,

3 9015

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

Biwta, BSNL, CDS, DMRC, Infosys, SSC,

14 39537

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

BSNL, TelCom,

4 14999

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

BSNL,

5 15640

pls tell me the syllabus and books that suitable for the post of junior and section engineer cateogries.

iFlex, State Bank Of India SBI,

1 3378

what is Programmable logic controller?what is its importance and where itis used????

 3 5408

What is true for frame relay?

 2 3472

How Nokia BTS working? what is TRX and DVJ Function?

Huawei, Nokia,

2 12088

i am also applied for the AAI jr executive (electronics/ATC) written test. pls forward me the syllabus & test pattern if any question papers, any one got reply for this quaries? if any one know plz reply to me on my email shivani_19jan@yahoo.co.in

AAI Airports Authority Of India,

3 6465

what is the need for modulation?

 13 17647

what is hetrodyning?

 2 6251

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Un-Answered Questions { Electronics Communications }

How is thermal management done in electronic circuitry?

557

Define diffusion current in a semiconductor.

624

Explain why the aspect ratio of tv video display is 4:3 or 16:9?

505

can anyone help me out to get HPCL officer's trainee paper's pattern....sureshec127@gmail.com

1523

what is PTP radio and PMP radio? give me elaborate description...plz

1705




What are the characteristics of an ideal op-amp.

636

What is the difference allen bradley and siemens plc

602

What is integrating type converter

580

What are the basic building blocks of pll?

685

What is power dissipation?

595

What do you mean by effect of noise on carrier signal & what is noise segment

4139

Differentiate between ppi and input output devices.

621

What is the use of starter and choke in tube

1212

i m i n3rd ye of btech EC branch and have been placed in sftware company..wat sghd i do to improve my skills in 4th yr..i have a gd academic background.

2761

1.antenna is passive or active?? add why? 2.diff b/w tch drop & tch block?? 3 diff. b/w sdcch drop & sdcch block??

1686

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