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DEWA Interview Questions
Questions Answers Views Company eMail

What is the minimum insulation value required for a cable between phase to phase and phase to earth of 380 Vac 50Hz circuit, having load arround 800 amps.

 2 7680

Why should compressed gas cylinders stored in upright position describe the cause?

 2902

Why should empty compressed gas cylinders stored in upright position please describe the cause?

 1 7111

what is second harmonic, how is effect transformer ?.

 2 9750

how many stages in compressor in ge 9 fa gas turbine ?

 3 8278

what is the voltage of insulation megger that should be used for measuring the resitance of 66kv equipments.

 3 7842

what is automatic voltage regulator?we can control the vlotage by using fuzzy controller in matlab?why we go for fuzzy?

 1482

CALCULATE THE TOTAL VOLTAGE DROP AND SELECT THE CABLE SIZE IN MM-SQARE FOR A PANEL-262KW AT 110 METER FROM THE SOURCE SUPPLY , SUPPLY VOLTAGE 240/415

 2230

Greeting to all members, How to calculate spill current when we have different ratio CT and Class for REF(Low Imp) I have 500/1A 5P20 @line side n 400/1A CL.X @ Neutral.

 2534

why we are testing cables with DC supply not with AC supply?

 9 28122

you must show the examples application and give at least 4 types of transducer/sensors that can minimize the failure during the manufacturing of the resistors.

 2838

Waht is surge in compressors and how to control it?

 1 3073

What is surge in compressors? How to detect and control it?

 1 7187

What does threshold mean? what does tolerance mean?

 1 4160

why the impedence of the transformer is expressed in percentage?

 3 8283

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