What is SCADA ? What are its main components ? How it works ? When we need a SCADA & where ? Is there any similarities and comparison b/w PLC & SCADA ? What are its Pros & Cons ? What are the faults that occur in it most ?

2 Answers  

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what is mean by biasing?

2 Answers  

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HI IN A MICROWAVE HOP THERE IS A SITE EXAMPLE(A &B).......IN A SIDE I AM GETTING RECEIVING LEVEL 45 AND B SIDE I AM GETTING 55 ...WHAT WIL BE THE PROBLEM..... SUCH QUESTION ASK FROM HUAWEI........THEY TOLD NO RADIO PROBLEM,NO LOS,NO FEEDON PROBLEM.I NEED A EXACT ANSWER......

2 Answers   Huawei, Rembam Telecom,

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what is 802.11b

5 Answers   Alcatel,

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Explain is rfid in developing stage?

0 Answers  

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Explain the STMi and how many type STMi are used in telecomunication.

2 Answers   TATA,

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Tell me why do we convert frequency domain to laplace domain?

0 Answers  

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who is Afghanistan PM?

4 Answers   State Bank Of India SBI,

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How does frequency affect the size of smps?

0 Answers  

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

3 Answers   DRDO, Electronics,

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MAN SHOCKED DUE TO CURRENT OR VOLTEAGE

18 Answers   Genco, Satyam,

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Explain why an ordinary transistor is called bipolar.

0 Answers  

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