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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 7701

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

 2907

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

 1 7113

what is second harmonic, how is effect transformer ?.

 2 9765

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

 3 8287

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

 3 7853

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

 1484

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

 2238

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.

 2540

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

 9 28144

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.

 2841

Waht is surge in compressors and how to control it?

 1 3078

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

 1 7196

What does threshold mean? what does tolerance mean?

 1 4165

why the impedence of the transformer is expressed in percentage?

 3 8294

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how to calculate the capacitor to maintain power factor?

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Which of the data augmentation technique would you prefer for an object recognition problem?

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Consider three heater bank connected in 3 phase star with neutral.Each heater bank connected in each phase.So each phase get 230 volts supply.my question is,during balance condition, current flow in neutral or Not

1197

I have an excel file that will not open. I am using windows 95 on a workstation connected to a windows nt 4.0 server. What is the problem?

278

how to differentiate a mpcb,mcb with a contactor? Explain their working operation

1648

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34

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464

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What is the difference between Over Molding and insert molding ?

4799

What is the structure of a feature?

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What are the data structures in R that are used to perform statistical analyses and create graphs?

222