Electronic engineer interview questions

[ef - el - ay - pee]

^ hijack!

1.) What is the Barkhausen Criterion?
2.) What is the Shannon Limit?
3.) What is the difference between a Colpitts and a Hartley Oscillator.
4.) What are the 7 OSI Layers?
5.) Describe the behavior of discrete components at RF

[Google]

parang ece board-exams nung 1942.. ang hirap naman niyan.. ala' pang choices.. 

dapat gnyan tinatanong sa board exam

[markabao2009]

I thought these were all PECE interview questions. Hindi pala coz mas mahirap pa ito sa PECE interview question ng Board of ECE.

[piona]

Pag-praktikal:

Anong ang amoy ng sunog na resistor? amoy ng diode? amoy ng transistor?
Gaano ka sakit ang mapaso ng 100Mhz? 500Mhz? 1Ghz?

Sa theory:

@ 5W, 100Mhz, 50% mod source....

Paano magpalipad ng signal dito?  bakit ito lumilipad? papaano ito lumilipad? gaano kalayo ang lipad nito? pagnabangga ito ano ang mangyayari?

simply lang pag pilipino ang gamit sa tanong di ba?

 


 

[beginner wan]

Pag-praktikal:

Anong ang amoy ng sunog na resistor? amoy ng diode? amoy ng transistor?
Gaano ka sakit ang mapaso ng 100Mhz? 500Mhz? 1Ghz?

ang baho ng resistor pag nasunog.. hehehehe... 

[eveready battery]

   1. What is D-FF?-data flip-flop,ano input yun output!
   2. What is the basic difference between Latches and Flip flops?-latches-FF,ah,try lang spelling,latch SR lang,flip-flop-bistable!
   3. What is a multiplexer?-parallel to serial hula lang!
   4. How can you convert an SR Flip-flop to a JK Flip-flop?review pa pero alam ko yun dati!
   5. How can you convert an JK Flip-flop to a D Flip-flop?kalimutan ko na review ulit.
   6. What is Race-around problem? How can you rectify it?racing,di ata pwede i rectify ito,nag uunahan eh.
   7. Which semiconductor device is used as a voltage regulator and why?syempre para stable your input power.
   8. Explain an ideal voltage source?hindi nagbabago yung voltage kahit marami nakaload.
   9. Explain zener breakdown and avalanche breakdown?zener yung para sa zener diode,mababa lang yung rating,avalanche sa diode yung similar to PIV(peak inverse voltage) rating
  10. What are the different types of filters?Butterworth,Bessel,Chebyssev
  11. What is the need of filtering ideal response of filters and actual response of filters?ideal walang roll-off,actual kasama na yung roll-off.
  12. What is sampling theorem?twice the bandwidth or higher twice the bandwidth
  13. What is impulse response?infinite amplitude,kalimutan na.
  14. Explain the advantages and disadvantages of FIR filters compared to IIR counterparts.wala talaga alam sa DSP.
  15. What is CMRR?come mode rejection ratio-gain ng op-amp
  16. Explain half-duplex and full-duplex communication?half-isang bumabato at isa sumasalo,full-pwede silang magbatuhan  at magsaluhan.
  17. Which range of signals is used for terrestrial transmission?medium frequency to microwave level,tsambahan na lang(AM to Microwave propagation)
  18. Why is there need for modulation?para maliit lang ang antenna heigths,para makarating ng malayo ang signal!
  19. Which type of modulation is used in TV transmission?AM-video,sa FM-audio.
  20. Why we use vestigial side band (VSB-C3F) transmission for picture?mas malinaw ang video sa VSB
  21. When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency?wala akong alam sa DSP.
  22. For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit?start at stop bit lang pwede na kasi asynchronous naman.
  23. BPFSK is more efficient than BFSK in presence of noise. Why?digital comm,kalimutan na hehehe.
  24. What is meant by pre-emphasis and de-emphasis?broadcasting kinalawang na hehehe!
  25. Explain 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?half power point!
  26. Explain ASCII, EBCDIC?mas marami yung ASCII kaysa sa EBCDIC!

review pa ako hehehehe!

[eveready battery]

^ hijack!

1.) What is the Barkhausen Criterion?eto ba yung positive feedback,kabaliktran ng Nyquist!
2.) What is the Shannon Limit?eto ba yung sampling theory,twice the BW,try lang ha,hehehe
3.) What is the difference between a Colpitts and a Hartley Oscillator.colpitts center tap na inductor,hartley hindi?
4.) What are the 7 OSI Layers?PDNTSPA?
5.) Describe the behavior of discrete components at RF-di ako alam hehehe!meron ng LC component yung discrete pag malapit ng RF level!

haaay review ulit ako ha?

[Black Bird]

ganyan talaga mga tanong sa job interview?? wala akong alam jan eh..

[eveready battery]

ganyan talaga mga tanong sa job interview?? wala akong alam jan eh..

depende coldflame sa papasukan mong job,halimbawa pag IT,dapat dun lang nakacoverage(C/C++),pag R&D maraming circuit analysis at logic,sa semicon op-amps naman,depende talaga.pag telco naman puro communications,depende talaga sasabihin naman kung ano yung ipapaexam. nung fresh grad ako,lagi kong tinatanong kung anu ipapaexam,minsan kasi di sinasabi.

[eveready battery]

sorry interview pala,paglagpak kasi sa exam,wala ng interview hehehe,but karamihan sa interview questions ay galing sa technical exams din 

[blackfin]

Barkhausen criterion for oscillation or stability???

^ hijack!

1.) What is the Barkhausen Criterion?
2.) What is the Shannon Limit?
3.) What is the difference between a Colpitts and a Hartley Oscillator.
4.) What are the 7 OSI Layers?
5.) Describe the behavior of discrete components at RF

[blackfin]

wala pa atang ece nung 1940's ehehe

dapat gnyan tinatanong sa board exam

[DUgYOT!]

 1. What is D-FF?
   2. What is the basic difference between Latches and Flip flops?
   3. What is a multiplexer?
   4. How can you convert an SR Flip-flop to a JK Flip-flop?
   5. How can you convert an JK Flip-flop to a D Flip-flop?
   6. What is Race-around problem? How can you rectify it?
   7. Which semiconductor device is used as a voltage regulator and why?
   8. Explain an ideal voltage source?
   9. Explain zener breakdown and avalanche breakdown?
  10. What are the different types of filters?
  11. What is the need of filtering ideal response of filters and actual response of filters?
  12. What is sampling theorem?
  13. What is impulse response?
  14. Explain the advantages and disadvantages of FIR filters compared to IIR counterparts.
  15. What is CMRR?
  16. Explain half-duplex and full-duplex communication?
  17. Which range of signals is used for terrestrial transmission?
  18. Why is there need for modulation?
  19. Which type of modulation is used in TV transmission?
  20. Why we use vestigial side band (VSB-C3F) transmission for picture?
  21. When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency?
  22. For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit?
  23. BPFSK is more efficient than BFSK in presence of noise. Why?
  24. What is meant by pre-emphasis and de-emphasis?
  25. Explain 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?
  26. Explain ASCII, EBCDIC?


KAya kung answeran lahat yan .PAG MAG DISCUSS MUNA SILA bago MAG ANSWER..WEW..ahehehehehe

[piona]

yong tanong sa akin sa interview, simply lang, may experience ka na ba sa microwave propagation? sabi ko wala, nagtanong din ako, meron nabang ece sa pinas na may alam nyan sir? sabi niya, hirap ngang maghanap e, puro installation lang ang alam!