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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is Horan Gap Fuse? Where it is used?

1 19345

Difference between SHORT CIRCUIT and an OVERLOAD ?

1 9973

What is principle of Floroscent tube 36watt.

Diamiller, NDPL, Trident Hilton,

1413

purpose of flux relay for turbo generator in power plant

1 2341

which type of capacitor store high amount of energy for long time ? ( polarized or unpolarized )

1 1614

what is differnce between grounding and earthing or both are same?

3 4409

why transformer is rated in kva instead of kw?

1 3704

what is a bus riser in power system and why it is used

2 40582

what are the sections in a high voltage system(eg:incomer,buscoupler,isolator

IGL, L&T,

1 3773

what is the difference between kva and kw ?

TCS,

5 12306

What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?

1717

What's the difference between a generator using 50Hz and 60Hz? When do we need to use a generator 50Hz and 60Hz?

3 6117

what is the difference between analog and digital signal?

3 4101

a simple c++ program to calculate simple interst with its data members as private

L&T,

1220

why we are called the 4-20ma transducer,not 0-20 ma transducer??

3 4016


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Un-Answered Questions { Electrical Engineering }

how does commutator convert a.c to d.c?

1580


What kind of maintenance is conducted for Transformer

1557


In EDO ACBs what is a purpose of closing coil and motor, what is the operation of these devices are they inetconnected. means if we give supply to motor and by BCS we charge Closing coil,what exact is operation is and how it charge a spring of ACB. Sir if anybody has an wiring diagram please send me the link to operate and EDO breaker.

1408


What is servo motor and what are different types of servo motor

1702


Why is water motor not taking the pressure? what is the problem?

945






th how could we differentiate between armoured copper and armoured aluminium cable what is the basic application? why we prefer the armoured copper as compared to armoured aluminium.

1288


When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?

1447


Brushes are placed at magnetically neutral axis,when brushes reach that point,the armature conductor gets shorted,but it can be seen that the dc supply is also shorted,wont that get damage? help me plz

1622


hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible

1184


what happen if generator of micro hydro running at only a small percentage of its capacity, as a comparison, if the diesel generator that runs on only a fraction of its capacity there will be a wet stacking

1245


What is open delta Xformer? It's adavntages & Use?

1543


Why AC & DC capacitor are use in UPS ??????????????????

1426


A cable with concentric PE conductor must be used with frequency converter circuits what does its means.?

959


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?

1212


What is the method of estamating of cable, CB,MCB ?

1450