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

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 2800

how to prepare PPM schudule

TATA,

3 6011

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

2 7002

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

1866

Describe the control mechanism of missile launcher???

DRDO, ONGC,

2017

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

3 5768

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 9281

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

7 14521

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

4 6904

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

1 6149

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

1 3910

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

5 18528

How to choose primany and secondary side MCB

1 3016

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 17900

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 19716

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Un-Answered Questions { Electrical Engineering }

How can we find the breaking capacity of a Load breaker switch (LBS) fed from 11 kv supply??ex:50KA, 26kA etc???detailed step vice answer pls.

2073

Two liquids hot and cold in two vessels are there and an metal bar acts as a conductor of heat between the two vessels. what happens then. what happens after 24 hrs?

2248

What is the purpose of stand by earth fault protection for transformer ?

2130

what is the purpose of silicon dropper used in battery charger?

7513

What is the minimum IR value of HT/ LT cable? Pls post separetely!!!!!

2501

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

2067

DESCRIBEPNEUMATIC SYSTM OF ASH HANDLING PLANT

5596

what is the necessity of under ground cables ??

2139

What is the resistance of the field winding of a d.c. Shunt generator kept low?

1147

What is meant by coupling capacitor?

1124

for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor?

2002

How do we find the rating of a transformer, if it got burnt badly.

1610

in Telecom DC system-why positive +ve is made earthed.and - ve is fed to load.

2764

what is the reactance,capacitance & impedence electrical armoured & unarmored Cables.

2256

why ten delta testing is carried out on power transformer

1859

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