Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why DC current not used in Transformer action?

Engineers India Limited,

17 12584

What is the difference between AC Drives and DC Drives?

Schneider, LG, College School Exams Tests, La-Gajjar Machineries, SMEL,

14 81399

WHAT IS THE MEANING OF BALANCED / UNBALANCED IN STABILIZER TYPES.

1027




where we use zero sequence current transformer or core balancing ct.

2 10380

how does relay works?

16 9279

how to calculate the KVAr for an motor for improving the PF

3 14930

Explain how Hormonics will effect the Electrical System?

5 7460

what is the use of neutral?

IOCL,

14 12507




What is the difference between Earthing and Neutral?

13 17604

What is the difference between "Earthing" and "Neutral"?

Power Grid,

10 8912

What will happen if we parallel two transformer with different %impedace?

3 4897

what is the meaning of servo motor. In trains, what type of the motors we are using at the bottom of each compartment

5 5543

why a pure inductive circuit has zero power output?

8 12018

1. Why a DC motor starter is called 3 point starter

ABB, Crompton Greaves, Infosys, College School Exams Tests, Siva, CG,

21 60997

Give idea about General Engineering. From which book i can study this topic. Pl. reply me via email. My email is ravi@bhelhwr.co.in, also give the name of book/website, from where i can prepare it.

TATA,

791


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Un-Answered Questions { Electrical Engineering }

How can we calculate C10 rating of a bttery from c5 or c20 ratings??

3170


How can we design a HVAC Plant room which includes AHU,FCU,Chillers,Cooling towers, Pumps etc & how will they work? any Drawing if possible?

986


if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit

660


What is the formula for selecting the cabels according to load? How to calculate what sq.mm cabel to be used?

129


I AM A ELECTRICAL PANEL BOARD DESIGN ENGINEER.IF I GO ANY INTERVIEW ,TECHNICALLY WHAT ARE QUESTIONS I WILL FACE FROM INTERVIEWER?

8702






The capacity of the transformer is 20/25 MVA, Ratio is 132/11 KV, Vactor group YNyno. and impedance is 10.07%. As per the calculation the secondary current is 1312.2Amps. The maximum fault current the transformer should sustain is 13.030KA. How many times the transformer should sustain the maximum short circuit current of 13.030KA over a period up 1 Year. The transformer is repaired one & 10 Years old.

3919


Safety of dry type transformer

323


what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?

720


What are the applications of different multistage amplifiers?Plz also write advantages of these amplifiers? Thaaaaaaaaanx

1596


Form S and "c" license application both are same? @ tneb portal

427


What is the formuala to calculate the rating of motor protection circuit breaker

784


any one can explain what is the size of pvc,armoured, various sizes of powr cable dia?

649


which is the best institute for PLC,SCADA,DCS in hyderabad

1022


how harmonics generated in induction furnance? how minimise it?

775


how works inductive &capacitive sensors?

711