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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the difference between transformer and amplifier ??

5 5555

what is the function of choke and starter in a tube light??

2 3314

why tube light flicks??

1 2358

what is differance bw ELCB and MCB. ?

3 3567

what purpose to use excaiter in DG.?

TATA,

1749

plz send me the placement interview question and answers of whizchip(technical and apttitude)..i have an interview in next.

4060

I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?

997

What is difference between Ac Voltmeter And Dc Voltmeter ????

KCP,

2 18432

why all transformer colour is same?

OPTCL,

3 6226

What is difference between ON delay and OFF Delay Timer?

7 45376

what is Princepale of Transformer Taps.

1 2694

It is used or not HT cable single core 630 sqmm in LT 3 phase capacitor bank which is used in PCC(power control center).

1 2179

diesel generator not getting start so whats problems will happen to DG and how we can start DG

Lodha,

1 3317

voltmeter kya hota hy ?

2 3597

electric contractor ya contactor kia hota hy ? or kesy connect kia jata hy ?

1 2190


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Un-Answered Questions { Electrical Engineering }

What are the different power system losses and how can it be eliminated?

1163


how to select automotive wire by mathematical equation with given current, vlotage and resistance

1529


what is mean by dual digital protection in the relay field?

1089


- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

1823


what is ramping rate of generator

1192






Difference between transition and diffusion capacitance

1685


How to select the cable and voltage drop in circuit?

783


A motor running with lenze frequiency inverter stops if I REDUCE SPEED with 25% load.If I run it in High speed and medium speed running smoothly with full load.please help me to solve it.

935


Which motor connection is preferable star-delta or delta-star?

241


How much ph is maintained of water electrolyte which is used in LRS for 1200 kw slipring induction motor ?

817


The power supplied to a 50mH inductor from a 120V, 60Hz source will be

2584


What is the Current equation in series RLC circuits.

242


give me applications of sequence bridges . (used in 3 phase un balanced systems)

1056


how to test YNyn0 vector group in transformer?

2107


Why is back emf used for a DC motor? Highlight its significance.

254