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Electrical Engineering Interview Questions
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What is short circuit analysis of electrical networks?What are the procedures to be followed for its calculation?

DLF,

2 7276

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 4098

What is Phasing out test?

 1 22907

Why we have short circuit the secondary of the transformer

 1 3797

what is high voltage in india?

Essar,

11 13294

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?

 1411

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

 3 4628

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

 3 6506

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

IES, Tanfac,

4 11230

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

 1532

what's the outstanding feature of universal motor?

Tanfac,

2 7159

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

 1 3499

Three phase alternators are connected in star connection why?

Tanfac,

13 39503

can u light up bulb with out useing neutral

 12 24286

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

HAL, Tanfac,

1648

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Un-Answered Questions { Electrical Engineering }

Explain how to determine capacitor tolerance codes?

665

Pl.brief me any electrical major fault you have rectified.

1532

why the field winding in dc motor is not short circuited eventhough dc supply is applied across the winding

1452

How to Decide(calculate) Bush bar size for copper and aluminiam ?

1724

How to select the cable and voltage drop in circuit?

1211




What are hrc fuses and where it is used?

777

can we use ZNyn11 transformer instead of Dyn11 transformer in distribution for effectively eliminating harmonics from the industrial loads.

4536

what is the difference between switch yard to residential area.and how much required it.

1312

explain the Trip supervision circuit

1697

How to calculate Grid rotor resistance(GRR) losses in slip ring induction motor?

3710

What is knee point voltage of transformer?

715

Explain the advantages and disadvantages of hydropower plant?

705

Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA

1436

what is upper impedance and lower impedance of a distance relay

1633

what is model question rrb junior engineer electrical gr.II

1581

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