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 functaion of IGBT in UPS system?

1 4047

difference between microprocesser and microcontroler

HAL,

1 3491

What is the difference between Floot charge and Trickle Charge.

Torrent Power,

1 5330

what will happen if the input of a transformer is dc?

Hindalco,

10 11498

when we connect the capacitor banks in series with the circuit?

Cipla,

3 7201

Is it necessary to install Lighting Arrester on both side side (i.e HT and LT) of Transformer in a transmission substation? if yes Why on both side?

1 3845

which connection is safer series or parallel?usually which connection we prefer at home?

5 9997

what is the meaning of neutral displacement ???

2746

what happens if DC earthing and AC earthings are shorted?

1 5685

1. which type of transformer connection is preferred in case of power supply transformers? (A) Star/Star (B) Delta/Delta (C) Star/Delta (D) Zig Zag/Star 2. In a power transformer usuall which winding is closer to the core? (A) Primary winding (B) Secondary winding (C) Low Voltage winding (D) High Voltage winding 3. The power factor of a purely inductive load is (A) Zero (B) Lagging (C) Leading (D) Unity.

CECRI_Central_Electrical_Research_Institute,

9 12662

What is the permissible value of earth resistance!

Torrent Power,

11 38122

wt wil happen if a 120kv line is grounded

4 6255

how desiel generate sart fail of eb?

OPG, Wipro,

2197

What are effect of radio system in DCS Distributed control system ?

Sabic,

1 4474

what is role of mpu in dg

1 6645

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Un-Answered Questions { Electrical Engineering }

Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity

1883

If I want to replace a 26KW Slip ring Motor with a Squirrel Cage motor & Drive (for a Hoist Application). How can I approximate the Motor & Drive HP required in new Setup.

2273

ho can we calculate the conductor insulation value according to their ratings like voltage,current etc.how insulation value related with voltage,current and power of amachine

2104

how a.c. genarator control power factor when its conected to grid supply by incrising or decresing excitation voltage.

3370

If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer

2708

Why derivative controller is not used in control systems?

1186

what is doid

2816

please send me jindal previous aptitude and technical question and answer.my email id is deep_raj@live.com

1972

If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..

2499

what is servo motor & how does it work.

1950

how are reversing the direction of rotation of dc motor

1766

I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?

3287

Define unilateral circuit?

1243

What is q factor?

1126

The power factor of the fixed load is 0.8, now the p.f is varying from 0.8 to 0.5.

1985

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