why we use low and high radio band in m/w link at both end

2010

What do you understand by voltmeter multiplier?

1044

Tell me is there any junction in conductor?

949

What is snooping cache?

1163

which transform is better? haar or hadamard

2009

What are the requirements for producing sustained oscillations in feedback circuits?

1139

What are boolean algebra and boolean expression?

995

define conversion time.

1131

Can fuses with an ac voltage rating be used in a dc applications?

981

What are ‘emitter injection efficiently’ and ‘base transport factor’ and how do they influence the transistor operation?

1053

why the pic micro controller have internal eeprom?But in 8051 have only rom and ram.

2843

Explain the difference between dcs & plc & scada?

1011

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?

2030

Differentiate between transducer and transponder.

1054

What are the main divisions of power system?

1173