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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

hello every one, what is the difference between the Kvar and farads, Rating on Power capacitor is for eg: x kvar, and normal capacitor is eg: x farads. what is the relation between these two?

3 7150

what material is used in capaciter

1930

What should be cable size for 75KVA 380/220 3ph transformer

3 5318

why two contacts(in series) are using in closing circuit

3 5806

What are the uses of MCB & ELCB ?

2 7230

explain the existence of reactive power in electrical engg?when it generates?

1 2492

Why have the transformer one earthing to their neutral? Why have the transformer many earthing to their body?

1 3807

what is the difference between Central Battery System and UPS in applications and uses? and why UPS suitable for Computers and central battery for emergency lighting?

10237

when we should use Central Battery system and UPS system and why? in other words, what are the differences between the two systems?

1 16478

hai now i am working as a electrical design engineer in construction field can i get a job in oil and gass field or power plant project as a electrical design engineer?

1883

1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?

2866

In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?

1828

Differences between 415v ac and 440v ac

3 21348

why is the HT voltages are in multiples of 11KV

Clariant,

1 4090

what happen if one of 3-phase line has a much higher load when we are using delta to star transformer? how we can over-come from that?

Getco,

2 5980

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Un-Answered Questions { Electrical Engineering }

hi all i like to know vat is power plot in control systems also i want to know abt latest trends in electrical & electronics

1903

my bachelors was done with EEE now i got admit in NU with CS as course. how to answer this qns 1) why u choose cs? 2) why u changed from eee to cs

1744

how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!

2291

I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com

1771

What is safety of Ht panel

1622

what is the relative size of single and three phase?

1847

what is the eight bit unit?

2402

2358

what is the use of static frequency converter and static excitation equipment? and where it is employed? for what?

3451

what is mind in cable

2009

ELECTRICAL ENGINEER TEST IN FEWA ANY ONE HAVE KNOWLEDGE ABOUT THIS?????????

998

Why do we need interlocking in a HT metering or Ring main unit switchgear?

1968

I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.

2332

Why space heater is required for each verical bus bar chamber? if one space heater is adequate or not for anti condensation?

2492

what is sevice settings for mccb?How can be it setted?

2153

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