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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the difference between grounding & earthing?

9 19661

How to specific gravity of battery will check, i didnt saw any hydrometer. & say me how to dip into the battery what are the specifications are given in the hydrometer?

1 3216

What is the d/f between DOL & star delta starter & automatic star delta starter?

ACC, Dalkia, Engineering, Indeco, NINL, Novotel, RMH Control Systems, Wipro,

23 155525

What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

Indeco,

5399

How LT megger works ?

1439

some times voltage does not built in small generators why ?

2 3197

what is the effect of power factor on DG supply,i mean to say what will the effect if we add capactors on dg supply.

HCL,

4 6229

What is the effect if power factor is above 1 or unity.

NTS,

15 42536

what is the effect if we add capacitor on DG supply, it has any loss or benefit.

6 10599

what is the difference between upper impedance and lower impedance distance relay?

Havells, Power Grid,

3 9076

whate is the meaning of balance/unbalance,in stabilizers type

TCS,

1481

what is the highest transmission voltage in india???

Bhel, EIPL, Engineering, Jindal,

49 42887

what is the application of dynamic Breaking resistor in inverter ? & How it works ?

2 5867

if 15 kv is grounding directly what will happen?

5 8141

how the works electronic energy meter?

Bhel,

1501


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Un-Answered Questions { Electrical Engineering }

What is MS-EXCELL?

1474


How can i get my certificate of competency as an electrical supervisor? I have complicated my B.Tech from Uttarakhand technical university this year (2012).

3822


1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor

4058


how to determine the inrush current of a transformer

1946


What is the ideal position cooling fan inside the dc motor?

1472






which pump used in STP

1477


2 v/500amp/hr to 1.80vpc at 20 degree celsious 2v/5ooamp/hr to 1.75 vpc at 77degree farren .this is the capacity of a battery .what is the meaning of this . can i get a detailed explenation

1616


How can ou verify the size of conductor 50Sq.mm ACSR

1349


The transmission does not have options: a)Partition noise b) Flicker noise c) resistance d) Short noise and reason

1765


What does ampere turns shows?

504


How to calculate pitch, gauge of winding wire, and No. of turns for 30HP, 3 phase, 4 poles 50Hz, 380V induction motors

1282


How the circuit breaker is selected for Induction motor of 100 kW, 415 volt, 0.85 power factor, 0.95 efficiency ?

1064


what is the safty of poly phase tranformer?

1470


how to calculate energy of 3-phase motor?

1380


what is load despatching

1480