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Electronics Communications Interview Questions
Questions Answers Views Company eMail

how does a soft starter works

RBM,

1930

why do we use soft starters

RBM,

1999

What is scada

2 3993

IP based EPABX system

2046

Loop check when we do ???before solo run test or dis two activities not related .plz explain me

NCC,

1876

What is Banked Register in Arm 7?

2339

A channel has a bit rate of 4kbps and a propagation delay of 20msec. For what range of frame sizes does stop-and-wait give an efficiency of at least 50%

Chongqing University of Posts and Telecommunications,

3734

A noiseless 8kHz channel is sampled every 1msec. What is the maximum data rate?

Chongqing University of Posts and Telecommunications,

1 6285

what is PLC? how can they work? Is there any possiblity to replace it?

Honeywell,

1 4062

Explain the difference between JK Flip Flop and Master slave JK Flip flop.

BEL,

1 5829

why we use chopper circuit in TV ?

LG, NTDC,

2436

Why inductor reverses its polarity why not capacitor while discharging evenif both are charge storing element?

1 3512

Hi, sir. im in need of placement questions to train myself as a professional engineer. this is my kind request.

1872

What are the difference between UPS and VFD

UltraTech,

2 7241

How to E1 cable get 2.046 mbps.

2011


Post New Electronics Communications Questions

Un-Answered Questions { Electronics Communications }

We are facing the problem of communication failure between seimens drives and ABB DCS. Between drives and DCS on RLM -01 module for communication purpose. We found red blinking i.e error blinking in RLM -o1 module. So we replaced with new one but after one month same problem again came. So again we installed old RLM-01 module. Now also RED blinking is coming but sometimes drives are not tripping. What will be the cause for this problem?

2018


What types of inverters require feedback diodes?

1535


why germanium is most suitable for DWDM systems?

2848


Why diodes should be connected in antiparallel with thethyristors in inverter circuits?

1262


xplain clearly each layer of osi and tcp reference modle

1812


What is q-factor of the coil?

1281


Impedence of a parallel resonant circuit at resonance is ?

1252


What is photodiode?

1077


What is diff b/w FIFA,FIPA,FIEA....?

3600


when do we use capacitor and inductor as strong device

2253


Define what is hole current?

1213


what are the need of satellites in telecommunication. if satellite no means how can we communicate with others?

1526


Tell us design gray to binary code converter?

1091


what is a voltage controlled oscillator?

1063


74Ls244 is _____?

1040