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 short circuit analysis of electrical networks?What are the procedures to be followed for its calculation?

DLF,

2 8067

how the arcing is made in ac electric arc furnace? ( between the three electrodes in any sequences or between the electrode & the charge(steel))

1 4612

What is Phasing out test?

1 25580

Why we have short circuit the secondary of the transformer

1 4387

what is high voltage in india?

Essar,

11 16632

1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?

1821

how can we know the size of cable cross-section from current rating ?

3 5595

starting torque is increased and current is decreased by using external resistance in a slip ring induction motor. How??

3 7725

what the effect will occur if we increase the airgap in induction motor

IES, Tanfac,

4 12515

how can we select the type of wire.what factors we have to look on it , do we have some formula to calculate it. please guide me on it

1907

what's the outstanding feature of universal motor?

Tanfac,

2 8342

what will happen if phases are not shorted with neutral in transformer impedance test? and if neutral is not connected with ground?

1 4112

Three phase alternators are connected in star connection why?

Tanfac,

13 42731

can u light up bulb with out useing neutral

12 26909

How can we findout the maximum efficiancy of Transformer? At which load?

HAL, Tanfac,

2041

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Un-Answered Questions { Electrical Engineering }

How can we find out LT UG cable fault (size,from-4*25mm sqr to 4*300mm sqr)? How mani types UG cable faults?

3016

does buccholz in a transformer use batteries

4782

how to calculate the magnetizing current of ct ( 800A/1A) for Relay 64

1422

would you please give me any idea about the BARC interview question on electrical? i have an interview on 1st july.....plz hlp me.......its urgent......

2428

what is difference between line differential and transformer differential?

1699

I AM GOING TO ATTEND APTRANSCO ON 26TH OCT 08.PLEASE SEND ME ANY MATERIAL OR TYPE OF QUESTIONS OR EXP QUESTIONS.

1908

How to design the earth grid for lightning protection in an industry

4569

How the setting of the vector surge relay shall be calculated when the relay is to be used for Grid islanding application?

2217

Terminal blocks is used for segregate the connections... There is any principle for terminal block..?

2077

is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

5235

If the line voltage is reduced to 75% of its rated value then by what percentage current will reduce ?? 75% 25% 50% no change and why ?

2156

How will polarity test of Dy5 Transformer ?

2220

Difference between Lugs and Thimbles

15141

How can we connect additional batteries to three phase ups? What are parameters we have to check when connecting?

2030

If increased the frequency up to 1000 then what changes shows in voltage?

2379

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