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Electrical Engineering Interview Questions

sir, how to select the cable size, what is the parameters use ang what is the formulas use for this cable size calculations. please tell me.

11589

Please brief working principle & construction of permanent magnet AC Servo motor

1329

what is meant by crawling??

11825

WHAT IS A COLOUR CODING OF 3 CORE CABLE

11133

What do you mean by cogeneration? What its working principle?

2305

what is mean by induction & conduction principle ? how they differ from each other ? thank you

3214

Sir, how to calculate the voltage drop and short circuit current of cable. please give me example and formulas.

4883

What is the Operating Powerfactor of UPS??? Why??

4009

when is the Ohms law is applicable?

ABB,

16708

what will happen if dc machine are supplied by ac source??

3762

what is the difference between static and dynamic induced emf?

98736

IC 741 is opampIC..moreover AND OR NOT ICs also have '74' in them.. why is that number specifically used?

2446

how will calculate the safe starting current of 3-phase squirrel cage induction motor?

1028

in 132 kv transformer , in which range of transformer oil bdv required ? if it has around 50-55 , then how it was insulated the winding ?

8206

WHY CAN WE NOT CHAGE SPEED OF SYNCHRONOUS MOTOR...............................JUSTIFY

ISMT,

3585

Un-Answered Questions { Electrical Engineering }

HOW TO DESIGN THE body EARTH cable(Copper Conductor) size for 60KVA UPS?

1085

My question is abt backlog.I had dropped one subject in my second year, and completed this subject in the 3rd attempt, so how many backlogs i have got?1 or 3?plz sujjest the answer as soon as possible

1186

how does a submersible pump work..?

1016

describe the A.C. Generator Testing procedure

1227

if you are in a software company,then why do you want to come in a core company like sail, ntpc(where lots of trouble like tension but you have a good life in a it company) ?

1031

how does WTI work ?

1034

10 tube light connect in mcb breaker.one tube light is fault.so breaker is tribe.how fault is rectified.(using 3wire phase,earth,neutral)

1571

What is the fault or needs to be done when frequency in ac drives is not changing?

777

Why are short circuit ratings always 16kA,25kA,36kA and 50kA.Who has fixed these?

3244

Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?

1255

what is the string efficiency

3780

what is the need of starter in tube light and what type of starter is used in that?

1091

Why should we hire you over the others waiting to be interview?

1936

what are types of encoder

948

what is meant by vector group of a transformer? How can it be derived?

1064