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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

please give me all the Alarm .Trip ,Safety Relays & Conditions of Diesel-generators mail me on ashokbabunhce@gmail.com

1965

we convert 66kv to 33kv then 33kv to 11kv,11kv to 440v.why not we convert directly from 66kv to440v?

HCL, L&T,

7 20680

what is the pre commissioning test to be carried out on LT power panel at site?

1 13587

Plz tell me how we can find that particular company has vacancy or not

L&T,

2271

HOW WE CALCULATE CURRENT IF THERE ARE NOT PRESENT ANY AMMETER OR MULTIMMETER??????

1868

In any plant or substation main incommer voltage RY - 415 V,YB - 400 V, BR - 387 V(in commer feed from transformer 11 Kv /0.415 KV) why found voltage differance in each phase? plant have not self power plant it is depend on outsource grid

2 5331

Here iam a question with SYNCHRONIZATION PANNEL related issue, as i want to design a SYNC.pannel board iam giving the 2 nos of 1MVA Generators to sync pannel , then what wil be the out put of the sync pannel, whether it wil be one cable coems from the sync panel or two cables.. as iam using two transformers to meet my load demand, so pls clear me whether two cables comes from sync panel to connect to transformers or only one cable

3 5395

How to know motor winding is star or delta connected without see the information table and winding connection ?

NTPC,

5 14148

In 3phase supply Voltage will come around 370v then what will happen?(mean what will effect on electrical equipment like AC,UPS,Motors.)

NTPC,

1 3601

my first school?

1 3615

why there is a phase difference between line voltage & phase voltage ?

4 6778

can we use optical fibre to electrical power transmission ?

1 2693

what will happen if i connect the buchholz relay in reverse direction.

MAN,

1 5688

why we are grounding the neutral?

GE,

1 3129

state the functions of different parts of star delta starter.

1 8259

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Un-Answered Questions { Electrical Engineering }

what is the meaning of 0.5ohm Resistance

1861

what is 30-phase of transformer

2295

(1)WHAT HAPPENS WHEN SUDDENLY LOAD GIVEN TO THE INDUCTION MOTOR ? (2)CAN WE MAKE WOOD AS MAGNET ? (3)WHAT IS THE VALUE OF MAGNETIC FLUX DENSITY IN TRANSFORMER ? (4)WHY WE ARE USING ELECTROMAGNETI NOT ELECTROSTATIC IN MACHINE ?

2184

how to find out cable size if load is 2800 watts, 230 volts AC supply and load distance is 1800 meters

1608

how to produsing geretor power

2209

Which device is used for the source of emission of electrons in a crt?

1268

how much LT load can bear by the 100 KW HT connection.

2222

Sir pl provide 5 year sample paper for post junior engineer(electrical).I have currently applied for junior engineer (electrical) on RRB Ajmer

3634

Define pole pitch?

1094

What will happen if i replace a inductive proximity switch with photo sensor in a machine?

1825

why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?

2271

What happens if the series current double?

1475

what is the effect of vector group while phase sequence of a generator changes,whether the vector group changes or not

2101

If I have 3 essential main switch board and 3 incoming electricity ,but only 1 genset running is that possible.

1639

How to prepare electrical preventive maintenance plan & shedule of machine tools in manufacturing unit.

2169

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