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Electrical Engineering Interview Questions
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How can we get a Neutral from a three phase suply? If we meet all three phases at a point to take neutral then why dont thay get sparked?

1 4501

How can we increase the capacity of Energy.?

1506

How does a battary stores charge in it? please explain in simple manner and in detail.thanks

1393

explain comutator action in detail.thanks

1542

how to calculate power factor rating according to load? please give the answer in simple language, i'm not electrical side

2 3891

in dc machine airgap is there b\w stator and armature but by conduction emf is generated how & what is conduction

1 1817

our industries ht line so power fluctation(once drop of power please rectify causes

1440

hi, in the event earth grounding is not available in a project, is there any other way to make the elcb work? fyi, i have an instant water heater (6.5kw) installed, however if there is grounding in the heating element inside the heater assembly, i will get grounded. thank you in advance to those who will answer my question.

1333

why transformer do not rotate?

3 4915

What is diversity factor.

Cadbury,

2 6405

what determins the amount of voltage produced by a voltaic cell?

1 3330

I FINISHED MY B.TECH IN EEE . I AM IN NEED OF A GOOD TRAINING INSTITUTE TO DO COURSES .. CAN ANYONE SUGGEST GOOD CENTRES IN TAMILNADU ,BANGALORE ,OTHER AREAS???????

1266

bit confused - am i correct in thinking that to determine line to line voltage in a star config 110v 3 phase 4 wire distribution system i would use a voltmeter? I have a circuit configured as an unbalanced load, consisting of three incandescent lamps (1x40w, 1x60w, 1x100w - all 110v rated)connected in a star configuration to a 110v 3 phase 4 wire distribution system. I want to find out what types of meters i would use to obtain: a) each line to line voltage b) the line to neutral voltage across each load c) current flowing in each line and load d) current flowing in the neutral conductor e) power supplied to the loads im assuming i would be using ammeters in series along each line and voltmeters in parallel across each line to neutral? Also how could i predict these meter readings before taking them and with which formulae? Any help would be greatly appreciated A.

1 2351

I need to compare the energy consumption of an industrial machine before and after improving. Shall I compare the apparent power or the active power? I know usually factories use compensated capacitors (or other similar components) to compensate the reactive power, so if I use the apparent power, it's not the real power consumed.

2 2939

what is the iron loss in a 11KV/440V transformer?

Bhel, TVS,

2 8531


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Un-Answered Questions { Electrical Engineering }

Explain the operation carried out in thermal power stations?

449


which type of cabel

1694


A 100KVA SINGLE PHASE TRANSFORMER 10000/200V,50HZ REQUIRES 300V AT HV SIDE TO CIRCULATE FULL LOAD CURRENT WITH LV SHORT CIRCUITED.THE INTAKE IS 1000W.THE % OF REGULATION ON FULL LOAD AT 0.8 PF LAGGING WILL BE HOW MUCH AND THE SECONDARY TERMINAL VOLTAGE ON 0.8 PF LEADING WILL BE

1822


why a tester wont shock while testing the power in house

1151


How much earthing require for h.t.22 k.v. cable in coming side & out going & 22 lighting arrest or,22 k.v.D.o. & A.B. switch.

1547






Are Refrigerators & Deep Freezers the Inductive load ? How to calculate the Power Factor & hence the Output Power for them ?

4332


What is meant by RVT and NDR ? expansion and details of it

2244


What is the difference between PLC and Embeded system

812


what is the safety points of vaccum circuit breaker.

1468


what is the relation between size of the anteena and wavelenghth of radiated wave

1512


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

3037


Please clarify 1. Icw: rated short circuit working withstand capacity 2. Icu: Rated ultimate breaking capacity 3. Ics: Rated service short circut withstand capacity 4. other specification of ACB

2127


why does rotor rotets?

1841


Why do we need a separate control desk & PLC control panel in Boiler plant or coal handling plant? Can we provide cost effective Control desk cum PLC panel. Is there is an specific need for control desk.. kindly advice.

1703


How cable from Kit-Kat to main switch, from starter to motor are designed?

1392