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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why Ferranti effect not occurs at full load?

L&T,

4 18937

how to identify the direction flow of electrons in a conductor? if i want to check the sequence in kv lines, is any device is available?

3 3690

What is the importance of creepage distance in disc insulator ?

1 11121

As we know that during saturation test of CT from secondary side, the current in secondary shoots up after core saturation. How core saturation effects the secondary current?

2 2917

Why secondary of a CT in a power system acts as an open circuit after core saturation?

2 3952

which motor is used in mixies

10 18687

the minimum clearance b/w ceiling and plane of leaf of ceilng fan shall be ..........mm

1 2345

why anti pumping relay is not given to tripping coil of the breaker? why only to closing coil?

INEL, Siemens,

2 4248

how to build a network which step down 415v to 1v rms

1003

how to calculate the bus-bar size. give formula with description

1 4672

what is single turn and multiturn encoder ? Can single turn encoder be used to show rpm of a motor(on shaft) ? Plz explain in brief .abanirout@gmail.com

1 2670

Can we use a absolute encoder to show rpm of a motor ? what about the condition when power is off ? what is difference if a incremental one is used ?abanirout@gmail.com

1201

Why most of analog o/p devices having o/p range 4 to 20 mA and not 0 to 20 mA ?

2 4078

what happens when current(ac or dc)flowing through a boucket of water?please describe it.

3 4947

two bolbs of 100w and 40w respectively connected in series across a 230v supply.which bolb will glow bright and why?

DRDO, PSPCL, Siemens,

16 55142


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Un-Answered Questions { Electrical Engineering }

How can I calculate ISF of current transformer?

2321


Generator,motor and alternator Working principal Please explain easily

579


why the neutral point in connnection oscillates?

1347


Can we indroduce the principle of single phase induction mator to Transformer? i.e. by Producing rotating flux in the transformer.

1327


WHAT IS THE PARTIAL DISCHARGE TEST?

1211






why electronic instruments is more favorable than electrical?

1123


i am in need of AC SYNCHRONUS MOTOR 30KW. ANY ONE KNOWS THE MANUFACTURER OF SAME. ALSO MOSFET AC CONVERTER 20KVA CONT.OUTPUT.

1093


What is meant by stator?

242


what is the principle of operation of tungstun bulb ??

991


what is the working process of over & under voltage relay.

1152


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

1076


please send me jindal previous aptitude and technical question and answer.my email id is deep_raj@live.com

1084


derive DC RMS value for half wave rectifier?

2324


1.ZEBRA conductor(large size) 2.KUNDHA conductor( small size ) 3.panther conductor(very small ) 4.lepard conductor (very very small)

1888


How to select a contactor? How many types of contactors are available

2338