What are the effects of ageing or using second hand IC or other electronic components?

733

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What are the advantages & disadvantages of a group electrive drive?

911

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model question paper for supervisor trainee

751

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what is black box system in software development in system analysis and design?

839

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what is the difference between the modular framework and datadriven frame work

1052

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I want to know what are QTP functons and what are VB script functions. What is the difference between them.When we have to use these functions.

641

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hoe to data grid use in sql server 2000?

789

---

What are Apache Spark, Flume, Lucene, Hama, HCatalog, Mahout, Drill, Crunch and Thrift?

60

---

What is meant by 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? What do you mean by an ideal voltage source? What do you mean by 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 briefly. What do you mean by half-duplex and full-duplex communication? Explain briefly. Which range of signals are used for terrestrial transmission? What is the 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? What do you mean by 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?

795

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why airtel use + 24 volts and other operators use -48 volt

1329

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what is upsizing and downizing?

1288

---

what is mean by ledger

1952

---

Distinguish among erase, erase permanent, erase selective and erase all?

504

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difference between tds and income tax (India)

600

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if i am in front of transmission line how to know that current direction without any equipment

417

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