Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is maximum or Threshold value of current 7 voltage that a common man can withstand

1 1065

how to prepare PPM schudule

TATA,

3 2959

what does the regenerative braking mean?and how it used for Dc motor? thanks.

2 3613




would the same effect be achieved by reversing the connection to one winding of the induction motor 3-phase?

710

Describe the control mechanism of missile launcher???

DRDO, ONGC,

841

If ac 230volts inputsupply to full wave rectifire what is D C output voltage.

3 2889

we can stepdown the voltage from 230/12v ,and we use the voltage for various electronics components why can't we step up the voltage from 12/230v if we can shall we use the voltage for domestic single phase supply

Areva,

5 4972

A 11000/415V distribution transformer is fed 415V upon it's LT side,Do I get 11000V upon it's Primary side ?

7 9053




For having nonavailablity of 10 Amps fuse, a lineman replace the same with 5Amps two strand, Do he correct ?

4 2898

What is the difference between Analogue Addressable Systems and intelligent Addressable Systems

1 3908

at the time of starting back emf of a motor is zero.so how can it will start to run??

1 2183

why we have to do tan delta test of the transformer oil???

5 13749

How to choose primany and secondary side MCB

1 1301

why firewall is build up between two transformer (220/11kv,50MVA)?what should be the firewall height?what is the clearance between firewall and transformer?

Siemens, Tous Stadt,

2 13345

In a Synchronous generator, Can AC voltage be used instead of DC voltage in field winding of rotor to produce AC power?

NTPC, Windia,

10 12754


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Un-Answered Questions { Electrical Engineering }

specific difference of ICT&Auto Transformer

561


In how we connect watt meter for open & short circuit test of a single phase transformer.

4171


Write the programming software name for LG, SIEMENS,Messung,AB

826


What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva

1098


How much minimum insulation required between 11kv/3.3kv transformer windings?

1231






in battery charging room we find two fuses (one in positive other in negative cables ).why it is so?one fuse is ore than sufficient?

1121


pls tell what are doing the three phase motor star and delta connetion with circuit diagram and control wiring .

804


can anyone show me how the 3 phase power is supplied to socket outlets?

849


What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

559


How to select HT/MV cable size ?

1307


how to remover corona effect and hysteresis losses from contactor

919


What is the difference between rulling span and wind span of of an Over Head Transmission Line?

1043


Why PS class CT is always preferred for Differential protection?

406


WHAT IS IM (INDEX OF MOUNTING )IN MOTORS

927


If rotor works in clock wise what happens

776