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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How can we select a capacitor Bank.? i need a standard formula for that.?

ABB, Ace Info, HAL, IKK, MahaGenco,

3 6959

what is the purpose of supervision relay coil

1 2501

why and how voltage sharing in transformer, during magnetic balance test ?

ME,

1281

why we setting 95 deg and 105 deg in wti and oti of distibution transformer ? give the reson for that ?

1943

why did lightening arrester rod probe sharp?

2 2358

Why in India distribution transformer are connected in Dyn11 when we know capacity of v-v connection can be increased by adding only a single transformer?

CSPL,

1 2825

define transformer

1 2113

Abb 11kv how it is closing automatically when the cb is racking in and rack out when it reaching test position

1 2535

what should be the BDV value Of 11/132kv power transformer

3 4326

what is meant by flywheel and its role in retardation test

1378

How can we calculate the Rating of DG Set for a 4 kw motor?

3 3228

what is a pf factor in generator.

CSEB,

3 3805

how to test and calculat the head and discharge in borewell compressor

1262

in case dc we mark as + ve & -ve..but in case a.c. we mark as ph&N...Y LIKE PLZ TELL ME

NPTC, TCS,

4 4706

Which power will flow first if we switch on a motor? Active or Reactive? How?

NPTC,

5 5367


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Un-Answered Questions { Electrical Engineering }

How much current will a 5 HP delta connected motor at no load will take?Is tat need a starter

5560


please send me the L&T Emb. sys. placement papers and entire details of pattren

1370


Define damping ratio.

169


what is differant beetween overload current and phase current?

1315


How to calculate phase to phase difference ?

1224






What is the selection process of breakers. Can any one please give a formulation on same?

1251


what size steel armoured cable is required to support 1500kva capacity. would 70mm squared be enough or would I need 90 or 120mm squared 3c plus earth

552


How to define Kirchhoff current law and voltage law along with simply examples.

698


How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.

883


What is slip in an induction motor?

181


Between educational qualification and practical work experience, give us a brief explanation on your practical experience in your past Endeavour that you performed well to the satisfaction of your past or present employer?

1269


Please clarify 1. Icw: rated short circuit working withstand capacity 2. Icu: Rated ultimate breaking capacity 3. Ics: Rated service short circut withstand capacity 4. other specification of ACB

1820


How to determine stage of Automatic Power factor controlling Relay(Apfcr)?

1215


what is acceptance test in electrical engineering.

1250


Draw a circuit diagram in which if button is open we can use socket and bulb as a series test circit and if button is close than simple we can use socket as any load purpose.

966