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Electronics Engineering Interview Questions

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How to convert binary to gray code and vice-versa?

Asked By: Ashish | Asked On: Aug 27th, 2011

Answered by: SUMANTH on: Dec 20th, 2012

for eg: code is 1101
this must be convert binary to gray then first 1 written as it is, 1 XOR 1
,1 XOR 0, 0 XOR 1.
then the gray code is 1 0 1 1

Answered by: AKSA DAVID on: Oct 10th, 2011

For converting binary 2 gray code add three to the given binary no.

Power factor correction

Asked By: hilarioushp | Asked On: Dec 18th, 2012

How the active power factor correction changes the wave shape of current drawn by a load to improve the power factor ?

Suggestions

Asked By: nooney | Asked On: Oct 5th, 2012

I am in my final year of collage in electronic engineering department of computer and I am confused about the final project any suggestions will help.

Answered by: Zahid on: Dec 12th, 2012

You should work on microcontroler basis project,it would be any but robotics like project is best to understand pure electronics & further control,automation and designing field.its not necessary that...

Why the shape of op-amp is triangular not other shape?

Asked By: subrata | Asked On: Oct 8th, 2007

Answered by: zeba Akhtar on: Oct 17th, 2012

bcoz OP-AMP has 2 input terminals,one inverting and one non inverting and only 1 output mode

Answered by: pp on: Sep 6th, 2012

op-amp symbol is triangular which is showing an arrow or direction of power transfer from input to the output.So op-amp transfers the power from the input terminal to the output terminal.

What is the formula for power gain

Asked By: yogesh | Asked On: Jul 30th, 2011

What is the formula for power gain when input gain & output gain is given?

Answered by: prakash on: Oct 10th, 2012

power gain=voltage gain.current gain

Answered by: bharath on: Sep 9th, 2011

Power gain=Output power/Input power

How does frequency affect the size of smps ?

Asked By: chorkat | Asked On: Sep 9th, 2011

Answered by: viswanath on: Oct 3rd, 2012

If frequency of SMPF is reduced capacitor size is increased SMPF size also increased.

Digital meter quantity

Asked By: vishalrakhecha | Asked On: Jul 1st, 2010

Which of the following are used to display measured quantity by digital meter?Led,lcd,cro?

Answered by: anusha on: Oct 1st, 2012

CRO

Answered by: rajesh kumar gupta on: Aug 10th, 2012

cro

Television communication

Asked By: rajanicd | Asked On: Jul 7th, 2010

What type of television communication is used in india?A) ntscb) palc) secamd) nstc

Answered by: ASHISH on: Aug 23rd, 2012

b) PAL system

Answered by: jaikishan on: Feb 16th, 2012

in india we are using as altration by line i.e PAL system...

this system is also used in British..

Allen bradley and siemens plc

Asked By: pvrprasadreddy | Asked On: Jun 28th, 2012

What is the difference allen bradley and siemens plc

Answered by: rashmikant on: Aug 5th, 2012

allen bradley plc software can use for programming offline otherwise siemens software can`t use in offline only use in online mode

Gases that ionize easily

Asked By: chirayusuri | Asked On: Apr 25th, 2012

Can a gas be used for conducting current?

Answered by: sandeep yandamuri on: Jun 7th, 2012

Yes yes search "ATOMTRONICS" topic u can get total info how gases acts as a conductors and super conductors

Answered by: vishnupriya on: Jun 7th, 2012

Yes, gases can be used provided they are in controlled condition

Resistance and inductance

Asked By: soujanya | Asked On: Jul 18th, 2011

What is the difference between inductance and resistance?

Answered by: pradeep on: Jun 2nd, 2012

As resistance dissipates energy in the form of heat and
Inductor stores in the form of magnetic fields and hence
Two different energy is obtained by the two

Answered by: ANUSHA MANEPALLI on: May 4th, 2012

RESISTANCE:It is the property of the material by which it opposes the flow of current through it. the resistance is denoted by r and measured in ohms.

INDUCTANCE: It is the element in which energy is stored in the form of electromagnetic field. The inductance is denoted by l and measured in Henry

The number of columns in a state table for a sequential circuit with m flip-flops and n inputs is 1. M + n 2. M + 2n 3. 2m + n 4. 2m + 2n

Asked By: Rujul | Asked On: Mar 25th, 2007

Answered by: manasa on: Jun 1st, 2012

2m+2n

Answered by: Raju Shrestha on: Feb 22nd, 2012

4. 2m+2n

How many types of non- voice jobs are there, and which one is better?

Asked By: prasad | Asked On: Sep 2nd, 2011

I am prasad completed engg in electronics. I want to know types of non- voice process and in terms of carrier which one is better voice or non voice ?

Answered by: mahesh on: Mar 27th, 2012

If u have a good fluency in English you can go for voice otherwise ...

Waveforms applications

Asked By: tahreem | Asked On: Jul 31st, 2011

What are the application of different waveforms ? Explain how they are used in real time ?

Answered by: waqas mehboob on: Mar 5th, 2012

Different waveforms have different applications.in some applications we require digital signal where we require only on or off state or discrete output but in some applications we require continuous o...

3 phase AC supply

Asked By: shweta tripathi | Asked On: Aug 1st, 2011

Why 440volts instead of 660volts in 3 phases of supply system?

Answered by: Hajee on: Feb 17th, 2012

440v is the line to line voltage, there is 230v for phase to neutral. So both 230, 440 volts is common operating voltage recommended by Indian standard rules. If our application required 660 volts, Just we step up the voltage by suitable step up transformer.

Answered by: ggicollegepunjab on: Feb 2nd, 2012

In 3 phase power electrical systems there are 3 phase in and 1 neutral because neutral is common for both in and output sources. 3 Phase electrical In used for high wattage expenses.

Is there any junction in conductor ?

Asked By: mithilesh022 | Asked On: Nov 29th, 2011

Answered by: rakesh9770756364 on: Jan 26th, 2012

NO junction in conducter

Answered by: ARUL MOZHI on: Jan 21st, 2012

No there is no junction in conductor. because its not semi-conductor. only semi-conductor contains junction

How do we test on design and style in software?

Asked By: beda wangmo | Asked On: Oct 24th, 2011

Answered by: naveen on: Jan 4th, 2012

We can use GUI testing techniques and we can use also use automation tool for stylish applications.

What are semiconductor devices

Asked By: vijayalakshmi.t | Asked On: Oct 25th, 2007

Star Read Best Answer

Editorial / Best Answer

Answered by: sukisudha

View all answers by sukisudha

Member Since Oct-2007 | Answered On : Nov 21st, 2007

  • there are three types of materials. they are conductor , semi conductor and insulator.
  • where the semi conductor lies between the other two. ie. controlled conduction is possible in semi conductor.
  • thats why it is preferred in electronic devices.
  • A PN junction is formed in all the three types of materials. but in semi consuctor the junction is very thin and easy to break it with the very low voltage.

Answered by: indranillahiri on: Nov 2nd, 2011

Semiconductor devices are made with semiconductor materials like Silicon, Germanium ,having the electrical properties of both Conductors and insulators. For Example pn junction diode, BJT, MOSFET, SCR etc. They are mainly used in Switching and Amplification purposes.

Answered by: AKSA on: Oct 10th, 2011

The semiconductor devices are the devices which stand in between the insulators & conductors.
It have medium amount of electrons.

Corrosion monitoring systems

Asked By: Sakshi A | Asked On: Oct 22nd, 2011

Sir, I would like to know the approximate cost of the following corrosion monitoring systems. smart pebbles eci-1(embedded corrosion instrument) monitoring cables time domain reflectometry &corrosion penetration monitoring system(cpmp). can anyone pls help me out with the answer.... As soon as...

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