Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is the difference between grounding & earthing?

9 23209

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 4221

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 165440

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

Indeco,

6169

How LT megger works ?

2138

some times voltage does not built in small generators why ?

2 4503

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 8368

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

NTS,

15 49845

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

6 13268

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

Havells, Power Grid,

3 11563

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

TCS,

2140

what is the highest transmission voltage in india???

Bhel, EIPL, Engineering, Jindal,

49 60885

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

2 7292

if 15 kv is grounding directly what will happen?

5 10740

how the works electronic energy meter?

Bhel,

2169

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Un-Answered Questions { Electrical Engineering }

What is the difference between isolators and electrical circuit breakers? What is bus-bar?

1159

Why you are switching off arc protection mcb when you are taking shutdown for lv board.

1702

How we can defined theecopper cable size if we know the aluminium cable size?

1879

What are your personal skills and abilities for such a Master Course and your possible preparation to undertake this course?

2046

How do we calculate transformer oil in liter from the rating of the transformer.

1676

explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?

4554

Why L.T.Cable voltage rating is 1.1kV,where as system voltage is 0.415kV?

2349

what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks

2233

what is the difference between electrical choke and electronic choke?

2518

Explain about Dubai electrical sysaem? Explain about Dubai drinking water system? Explain about Dubai Burj tallest building Electrical,Water.etc.. maintenance system?

2177

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating

2415

What is the classification of hydro projects based on installed capacity?

1198

Difference between control junction box (cjb) and power junction box(pjb)?

4343

what is the difference between b c d curves on mcb

1812

What is the actual meaning of thermal power efficiency ?

2178

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