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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is mean by Digital Logic Meter (DLM)

1425

Can we pass 11kv power in 1.1kV voltage grade cable.If not why?.

3 8087

Is only insulation the difference between High voltage and Medium voltage cable?

1 2363

if the supply frequency increases what happens to the motor load

2 3992

in a diesel generator is there any relation between AVR to fule system?

2 2450

how the diesel generator maintain the rpm when the generator loaded varies from 10% to 70% immediately?

3 3860

The MCB circuit breaker have a voltage rating of 440VAC it's possible to supply a voltage of 480Vac

1 2400

what is the function of AVR in generator? how the generator maintain the frequency while varies the load?

1 2316

im working in one private compeny in gujarat. i was complet diploma electric in 2010 from gujarat technical board. now i want electric supervisor licence in gujarat but i dont't know when i apply? plz give me address of the licence dippartment office in gujarat. gandhinagar

1022

WHY DO VOLTAGE TRANSFORMERS FAIL DURING EARTH FAULT IN THE DELTA CONNECTED 6.6KV ELECTRICAL SYSTEM

1114

why the capacity of power plant is given in MW though the generators are rated in MVA?

TATA,

3 4421

What is meant by Im=30mA@Vk/2. How to know the kee point voltage for CT design

2313

how to interlock 3 nos MCCBs using under voltage coil. please provide me circuit diagram?

Honeywell,

1748

how to find transformation ratio of squirrel cage induction motor

BITM, WER,

2147

what is the difference between ac and dc?

1 2811


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Un-Answered Questions { Electrical Engineering }

previous year paper of ntpc bhel for degree in electrical enng

2368


anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?

1045


what is R Core Transformer. how it differs from normal transformers. dont search in net and post the answer.

1213


what is submersible pump?what is different between motor and sub motor?

1165


following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?

1281






How do we arrive at selecting reactive capacitance value as 30% of h.p rating of motor?

960


what is the role of energy meter in distribution system ?

272


details of oil cell size of Breakdown voltage test of tranformer oil details as per Standardswith mushroom electrodes?

1026


What is meant by reset level of the relay?

227


Please brief what is sinewave

1188


what are carbondioxide and dcp used in fire extinguishers

1247


What does a Bode plot tell you?

285


how much value of resistance should connect to 15 kw, 6 pole 3 phase slip ring induction motor having RV-240, RA-42.

1019


pls,send the previous year written test questions.

1048


Formulae for calculating the transmission line losses for different voltage levels

1233