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 shutdown of electrical sub station?

UCEP Bangladesh,

2458

a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.

1576

how to increase or decrease speed in DC shunt motor by DC convertor

2243

IP55 protection stands for

Hofincons,

1 2645

IR value for 30kw lt motor

Hofincons,

1 4425

anti pumping relay function

Hofincons,

3 5510

why we usually call 415 volts instead of 440 volts

S Tech,

3 8022

In aircraft,why we use 400 htz equipment.and use common earthing

1 3625

Difference between single phase rotary inverter and 3 phase rotary inverter

Jet Airways,

1 4716

How 3 phase invertor works?

Aero Ltd,

1999

what causes contact chatter when there is no demand on the air conditioning unit?

1993

Dears we deal in Chemical are Plate earthing. Kindly call if any requirement and questions. Tech Earth Solutions Mohit Verma 8791071007

XYZ,

1831

What is the reason of polyphase induction motor tripping suddenly on high current during running at 70% laod? Motor IR , winding resistance & inductance balance. Motor no load current is balance and ok as per mgfr. data.

GNFC,

2378

Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp

3092

how to erect roof control panel?

2001

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Un-Answered Questions { Electrical Engineering }

sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

2121

what is the meaning of impedance protected in instrument cooling fan

3464

What is difference between safe PLC and normal PLC

1550

How to measure power in 2 or 4 or n phase circuit? Please give me a formula.

1876

How to do cable sizing calculation for 750 A Neutral Earthing resistor for 33kv. the 33kv cable going to swbd. is 630mm2 3 runs.

4724

Refernce currents are to be generated using refernce cueernts how can this be done??

1962

Explain forward resistance, static resistance and dynamic resistance of a pn junction diode.

1136

how does a shunt reactor maintains the bus voltage???

2022

How to calculate no of EARTH PIT? Describe the formula as per IS standard?

2118

hr round

2077

. How to calculate the Short Circuit Impedance in Transformer? How to calculate the Short Circuit Impedance in Transformer?

2090

How many gap between finger contact in a.c.b. and v.cb.?

1240

A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.

3002

Damping resistor provided in open delta (tartiary) winding of a measuring PT at the incoming of a MV inverter drive panel is getting heated up. Can any body explain the reasons and suggest the remedy?

2999

Difference between control junction box (cjb) and power junction box(pjb)?

4246

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