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.

2804

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

4 6965

What do you mean by Transformer?

Hyundai, NTPC, wbsedcl,

9 16018

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

1 26591

what is slip ring startor

1 3677

what is the difference between multimeter and megger?

Bhel, Metro,

3 17262

what is stray capacitance?

1 3884

what is advantage of providing taping on HT side?

4 6568

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,

2856

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 7006

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Un-Answered Questions { Electrical Engineering }

need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.

1818

Write down the name of 2 lady Bir Pratin of Bangladesh

1983

please explain how to do 'pole drop test' on generator?

2908

Define peak overshoot.

1271

What we mean by vintage of an engine+Generator?

2123

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

what is v/f control in VFD?

1550

What are operating procudures & Safety precautions to be observed while operating OLTC in manual mode ?

1970

What is the permissible maximum flux density in transformer core?

1237

Why 11kv to be generated in generation station

1671

what are the steps involved in generator load test?

1555

Is potential difference materials property ..? if yes tnen how.. explain brifly.

2055

Can clean earth cable be considered as low current cable

1967

can any one suggest paper presentation topies for electrical engg?

1997

I need HT sphere gap calibration table. Can any body help me.

1947

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