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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

How much dc volt applied in cathodic protection system?

2329

what is balanced network and unbalanced network

Nalco,

1 5493

PLEASE ANYBODY HAVE ELECTRICAL CIRCUIT DIAGRAM FOR CHMER PULSE CD 60M SPARKING MACHINE.PLEASE MAIL ME SUPRIYAAYYAPPAN@YAHOO.CO.IN.

2805

why is a earth pit 10 ft usually? And, what should be the distance betweeen two earth pit?

4 6975

What do you mean by Transformer?

Hyundai, NTPC, wbsedcl,

9 16019

what is the difference between a race around condition and toggling?

1 26591

what is slip ring startor

1 3679

what is the difference between multimeter and megger?

Bhel, Metro,

3 17264

what is stray capacitance?

1 3885

what is advantage of providing taping on HT side?

4 6577

what is the advantage of connecting capacitors in delta than in star?

NTPC,

1 3036

(1)The demand for electricity , the amount of renewable generation available, the amount of fossil fuel generation available and the cost of the fossil fuel generation are shown in table below period(hrs) demand(MW) renewable (MW) fossil- fuel(MW) cost of fossil fuel(MW) 00.00 - 01.00 2000 1800 2000 30 01.00 - 02.00 2300 2500 2000 30 02.00 - 03.00 2500 2700 2100 45 03.00 - 04.00 2900 3100 2100 50 04.00 - 05.00 2700 2600 2500 45 05.00 - 06.00 2400 2000 2700 50 06.00 - 07.00 2200 1800 2000 36 07.00 - 08.00 2100 1600 2000 36 Assuming that the renewable generation incurs zero cost, determine an optimal generation schedule(specifying the amount of renewable generation and fossil fuel generation used in each period, the cost for each period and the overall cost for 8 hours.)

1866

while doing high voltage test on 11kv/433 distribution transformer why we only give 28 kv on hv side and 3kv on lv side for power transformers what is the value what factors it depends

Enercon,

2858

draw singleline diagram of star to delta and dol starters

JCP,

2257

what is advantage of using star to delta in place of dol starter

4 7015

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Un-Answered Questions { Electrical Engineering }

sir i applied for hpcl(electrical).i want to know from which subjects most of the technical que will b asked.and pattern of the written test.pls help me

1943

can someone explain that how the speed of the protection system affects the fault level calculation?

2092

Which type of air compressor is used now a days in the market. Keeping in mind of energy efficiency and maintenance points. Relevant documents may also be sent on mentioned email ids.

1674

Is there any reason that we get shock on touching phase wire because the earth is at neutral potential? Is there any reason that the earth is at neutral potential because the neutral is earthed in apower station

2013

Differentiate between magnetic field and magnetic flux?

1134

How I can Compare 120v/60Hz versus 220v/50Hz ? Please tell me both advantage and disadvantage ......

2026

What is the armature mmf in a D.C machine?

1242

I am inpecting a 10kVA UPS what tests should i do and should i observe?

2217

relation between power station capacity and voltage level?

2059

How to do cable earhing? whether by grounding Armour to ground or by running extra G.I wire along with cable? which one is preferred mostly amoung them? If the second one is more preferable how many GI wires to be run along with cable (1 or 2)?

2140

what is the difference between 4pole & 6pole DC Motors & give advantage ?

1906

Why do we perform an open-circuit test and short-circuit test on the transformer?

1120

What is the formula to calculate the rating of a three phase air circuit breaker

2324

What is meant by RVT and NDR ? expansion and details of it

3036

Leakage current,un balance current which relay using for high voltage transmission?

2162

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