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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

no EB power DG is not starting?

6 17844

In an ammeter used for measurement of current, what is the meaning of the representation of range as '0-50-300'?

4 9186

What is the difference between AC voltage and DC voltage?

6 19415

HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?

Eastern Produce,

2118

what is the difference b/w neutral and earth?what is the need of earthing and what are the different methods for earthing?

NTPC,

4 7589

what is ohms law?

7 9202

What is difference between 220v/50Hz & 120V/60Hz?

8 37767

Draw the vector diagramme for Asynchronous Induction Generator at noload,half load and fullload.

1987

if voltage in transmission line more than current will be more or less,if less what about the Ohm's law

2 5127

what is buchholz relay?what is it used for?

Engineers India Limited, NFCL,

8 30396

3 measuring instrument for transformers?

5 7760

operating Lt & HT voltages used in India?

Essar,

8 14440

what is the different between earth leakage relay and earth fault relay?

ME,

5 15324

What are the voltages at which electrical energy is transmitted

KSEB,

7 10920

WHAT SHOULD BE THE MINIMUM IR VALUE FOR LV (380V) CABLES ACCORDING TO IEC/IEEE.

3 7514

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Un-Answered Questions { Electrical Engineering }

A power transformer 4MVA/11KV/0.415Kv has been out of use in 12years. what maintenance actions/test need to be carried out before energizing.

1317

What is the difference between diode and a transistor in terms of the direction of current flow?

2215

what is ratio of copper wire size and current ?

1824

Is it possible to connect a safety device in to parallel?

2156

what is the difference between the voltage of 5 volts capacitor and and 5volts battery?

1944

what is effect of leading power facter on the system and billing

2340

Differenciate between circuit wiring and sub main wiring with illustrations

2251

what is the difference between interconnection and intraconnections in the circuit diagrams

8398

FOR 16/20 MVA 132/33 KV ONAN/ONAF TYPE TRANSFORMER IT IS DESIGNED FOR 16 MVA WITH ONAN CONDITION.IT BECOMES 20 MVA UNDER ONAF CONDITION.LOAD LOSS IS GUARANTEED FOR 65KW AT 20 MVA AND % IMPEDANCE 13.75. PLEASE TELL US AT WHAT LOAD LOSS AND % IMPEDANCE IT SHOULD BE DESIGNED FOR 16 MVA AND WHAT WILL BE ITS EFFICIENCY AT 20 MVA?

3403

what is ic 01,ic 06 ?is it types of cooling?

4316

In single phase ac ups supply when current is measured with tong tester neutral current is found more than phase current.What is the reason?

2124

A double circuit with dog conductor 66KV Transmission line from wind farm evacuation to feeding substation having capacity of 25MW for transmission. Can same transmission network be considered for further expansion of Power & how much in MW. If we need to expand next 10-15 MW more will there any augmentation is required in transmission network? Kindly reply asap.

2198

what will happen reduce the transformer voltage from 415v to 406v, is it save the energy,? are this methodis good to reduce the energy.?

1523

can i connect the two phases of scott connected transformer,if not why?

1973

draw singleline diagram of star to delta and dol starters

2257

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