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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how to calculate the multiplying factor for energy meter with CT ratio given

Bhel, Dalmia Group, DIFC, Fedco, Hindustan Unilever Limited, Lupin, MahaDiscom, MAL Pakistan, Myunghwa Automotive, Panchshil Infrastructure, Regala, RVPN, VIPL,

23 221824

if field current decreases how can the speed increase in the unloaded dc series motor

1 2264

basic princple of induction and synchronous motor

1 2371

which MPU register provides the address from which the next instruction byte is to be fetch?

1 2271

briefly explain the main blocks found in a microprocessor based system

1281

What is the role of Tertiary Winding in Transformer ?

2 4828

Explain role of Buckolz Relay in Transformer ?

7 6983

Is it possible Z axis excess error alarm reflect in X axis if yes explain ?

1663

can we make a loop between neutral and body for grounding?

2 3173

what is -24vDC and how can generate this -24vDC

Blue Star,

1 4702

What is floating voltage?

1 8790

AC voltage only create magnetic flux in coils, but in Solenoid coil how 24V DC volt create flux and pick the plunger

5 8765

why crgo core is used in transformers?

Bhel, TATA,

6 28214

What is YNyn Transformer? and what are the other types in this?

3 13812

How we can calculate the capacity the Air Condition capacity? like 1 or 1.5 ton's, What is the means of volume of Ton's in capacity of Air Compressor? Why in ton's,? not any other Volume?

2 3673


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Un-Answered Questions { Electrical Engineering }

What is mason's gain formula?

214


TRANSFORMERS WITH DC SUPPLY

1077


What is mean by spike arrester(Voltage Operated)

1205


what is data block in plc ? How the values of data block are written and read by hmi ? what is the difference between function and function block ?

2487


what are the principles of a booster converter?

1108






give me applications of sequence bridges . (used in 3 phase un balanced systems)

1020


why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?

1073


1- What is the Polarization Index number be good for 15KV 3c#500MCM electrical cable? 2- Can I use the IEEE Std 43-2000 to perfom the PI test? Thanks

2415


How will polarity test of Dy5 Transformer ?

1246


State the types of distortions in amplifier?

217


How Can you do Maintenance of ACB of 2000Amperes

1187


how to select size of hardware for linking aluminium busbar is it depend on area of busbar or current flowing through bus bar

1109


Is a d.c.compound motor is use as a booster? how?

1191


How many types are using in 220kv/400 kv swith yard

1342


Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.

608