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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Why Ferranti effect not occurs at full load?

L&T,

4 23450

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 6203

What is the importance of creepage distance in disc insulator ?

1 12909

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 4720

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

2 5833

which motor is used in mixies

10 24542

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

1 4018

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

INEL, Siemens,

2 6276

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

2069

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

1 6128

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 4093

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

2084

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

2 6008

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

3 7608

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 63816

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Un-Answered Questions { Electrical Engineering }

what is a synchronizing lamp ?

1751

What is Long rod insulator and it's applications..? merits over the disc insulator ..?

1983

why swityard is necessrry requirement in any bis power distributin systems?

2443

for 100 HP Induction motor service factor is 1.2(SF) we placed a VFD at the motor side load is balance with 0.3 Amp's Phase to Phase but at incoming of VFD load is un-balance with 10 to 20 Amp's what will be cause of load un balance

2012

tan delta equation test on alternators

2265

What is a single phase autotransformer?

1159

explain me the relation between torque, frequency,speed,voltage and current in the 3 phase induction motor?

2306

What is a compensator?

1144

Is there any type of starter for DC motor other than two point,Three point and Four point starters?

2109

send me all basic electrical question and answers

2976

Installation resistance for whole installation of 16 kva & 25 KVA DTRA a) Between each conductor b) between conductor to earth c) installation resistance for each apparatus, each conductor to earth d) earth resistance for the system of earthing

1984

What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?

1952

WHAT HAPPENED DC SERIES MOTOR FIELD WINDING OPEN. CAN POSSIBLE.

4020

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

1905

How to protect sensitive loads such as Dosing pumps inside a factory from voltage surge/voltage fluctuation.

1860

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