Electrical Engineering Interview Questions

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?

4795

How can we increase the capacity of Energy.?

1709

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

1560

explain comutator action in detail.thanks

1779

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

4318

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

2189

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

1712

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.

1559

why transformer do not rotate?

5463

What is diversity factor.

6986

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

3636

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???????

1464

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.

2650

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.

3341

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

Bhel, TVS,

9281

Un-Answered Questions { Electrical Engineering }

lorteny method

1599

what is the difference between b c d curves on mcb

1366

There are Two questions about Steam Turbine Generator... What is HRSG bypass of LP, HP used for in power generation? In particualar, in the event that fault of HP bypass, there would be STG TRIP in operation but none on the LP bypass fault...what's the reason ?

1855

is it possible to have dc motors on single chip

1397

what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator

1648

i have 3500 amp load and select current transformer and perches.how i calculate .please understand

1775

What is the best thing to protect the motor from running over full current. CT or O/L or pressure transducer at the given pressure rating

1072

explain the function of brush less dc motor?

1619

What is the de rating factor of cable? What is the importance of the de rating factor in cable select

1932

1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is

1528

What happen to the transformer if the OLTC frequently used for lower and raise occured 50times daily?

1621

what is the safety of voltage power transformer(2250KVA0

1583

How you will determine the volume of oil in a particular Distribution transformer.

1476

What is the criteria that generally follow by distribution licenses to fix contact demand of their industrial customers?

1165

I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com

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