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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Difference between a pilot wire and a normal conductor?

United Arab Aluminum Company,

971

How to reduce current flowing in neutral due to unbalanced load conditions in a three phase system.

IOCL, wbsedcl,

1 2755

Why current transformer is earthed??

2 3015

why when i start my diesel generator it takes 1 minute or less then stop, and i checked the oil sensor is ok and when the generator start i can get 220 voltage but it it is stop after 1 minute or less, how can i solve this problem?

1 1215

what is compatible kva for 3300 watts and why

FoodBev,

1 1663

What is the value of system voltage?

Bhel,

2 2893

What is difference between MCC,PMCC,PDB?

Cipla, JSW,

1 29032

(1) From the following option, which option is correct for largest size transformer.? a)1KVA,25Hz , b)1KVA,50HZ , c)1KVA,60Hz , d)1KVA,100Hz

Torrent Power,

5 5105

Why ct secondary is not kept open while primary charged. Answer in terms of ct parameters.

Power Grid,

4 3753

What type of surgery impedence with 200ohs 

1 892

suppose i have two single and three phase induction motor,thier have not any rating on its panel,anybody can tell me which motor is single or three phase?

Doon,

1 1600

why chock were used in old tubelights but are not newest tubelights?

825

Differnce between negative Pahse SequenceFunction and unbalance Function?

Atsco, LMW Lakshmi Machine Works Limited,

825

What is the name and type of power transformer oil?

4 2861

what is the full name of ELCB &MDB 2 2823



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Un-Answered Questions { Electrical Engineering }

1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is

216


WHAT ARE THE CHARACTERISTICS OF AN VOLTAG AMPLIFIER

1145


After taking shutdown of 11kv feeder, if you see 5kv by phasing stick in the cable side, is it possible to close earth switch in cable.

1377


Formulae for calculating the transmission line losses for different voltage levels

1170


which metal is use in shunt

3762






What is primary and backup protection?

174


The capacitive reactance of a capacitor of 1/(2(PI)) F at 10^3 H is

977


What is the purpose of using busbar mounting fuse?

1157


what are pilot cells

1106


Can we check ELCB constantly from R1 to R8 phase in 1 no DB?

784


What are the reasons for the parallel operation of transformers?

146


what is the difference between 2 way and 4 pole selector switch???

1365


i have interview in Pepsi company what type of question will ask please send the question and answeer

2476


Terminal blocks is used for segregate the connections... There is any principle for terminal block..?

1207


what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator

1088