Electrical Engineering Interview Questions
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two parallel conductors are carrying the current in the same direction.which of the following statements is true? (a)there is arepelling force between the conductors (b)the force increases when the distance between the conductors is increased (c)there is an attaracting force between the conductors (d)the force increases when the distance between the conductors is decreased

1 3137

In the solution of load flow eqation, Newton raphson method is superior to the gauss siedal method because (a)the time taken to perform one iteration in the NR method is less when compared to GS method (b)the number of iterations required in the NR method is more compared to that in the GS method (c)the number of iterations required is dependant on the size of the system in the NR method (d)convergence characteristics of the NR mehod are not affected by the selection of the slack bus

1 3826

the transient state stability limit of a system wherin power is transmitted throgh a double transmission line is (a)equal to steady state stability limit (b)more than its steady state stability limit (c)less than than its steady state stability limit (d)equal to its dynamic stability limit

1 5069

why universal motor work on ac & dc both?

EMC, emc2,

1 7282

What is CRT (Contact Resistance Test) for Isolators or Dis- connector Switches? Why we performed it & whats the Testing procedure.

Siemens,

1 10324

What is Hi-Pot Test for Grid Station HV Equipments?

Siemens,

2 6947

in one substation we have two power transformers of 100mva,75mva capacity.statoin load is155mva.how much each tranformers share the load????

TNEB Tamil Nadu Electricity Board,

6 9427

is ac supply can store

1499

Why does the DC voltage needed is less than AC needed to produce corona?

TATA,

2 4176

how to calculate the change over time for star delta starter for different KW motor?

3737

what will happen if the prime mover on the field excitation of the on-coming generator fails?Explain.

Ahsanullah University of Science and Technology,

4990

why earth fault current is always less than the o/c

2 3521

How can calculate HT side VCB? For example I have 1250 KVA load what will be HT side VCB Amp.range and what size XLPE cable I use for HT side.

NASSA, Orchid, SB Automation,

2 15974

We have 250 KW x 2 motors, which are load from 25% to 100% varying load in every minute , so how can we compansate the power factor. pl give your opinions on the above subject.

1411

1. Design a counter which counts 0, 4, 8, 2, 6, and repeats using: 1.a using JK flip flops 1.b using T flip flops 1.c using D flip flops

1497


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Un-Answered Questions { Electrical Engineering }

What is the difference between security constraint unit commitment and security constraint optimal power flow?

1203


What is Phase to Phase clearance for 800V System Operating Voltage as per IEC61439

526


How to define Kirchhoff current law and voltage law along with simply examples.

1206


I have a current transformer with 1 main reading meter with transformer outside the building and a control panel having 5 CT reading meters with black round coils inside the building. I want to know, A) when current pass through the Transformers, will the current be reduced or be the same and after that B) when current pass through the CT meters with black round coils, will the current be reduced or be the same. C) in the above process will the reading of the main meter be same or different, from the total reading of all the 5 CT meters.

1364


Thumb rule of cable size(rm>30 rm)X multiplying factor=ampere

1172






What is the current carrying capacity of 0SWG,3SWG,10 & 12 SWG solid bare overhead copper conductors?

2941


What is the need for a controller?

642


is it necessary to earth the rmu before cutting off the transformer winding?if yes why?

1459


Why use in ht motore

1243


what is the question paper model for section engineer in RRB

1459


Which test will be more severe for VCB?

2207


please send me the L&T Emb. sys. placement papers and entire details of pattren

1829


how to avoid electrical shock how capacitor store charges wat are the speed control of induction motors state faradays law flemings left hand rule what is rotary converter wat is transmission and distribution what are the sources of energy abrevation of acb,vcb,sf6,igbt what is output equation of transformer which test copper iron and iron loss are calculated what is eddy current draw a single line diagram (10 marks) draw direct online starter(10 marks)

1434


How time response of the system is divided?

676


how to do the ductor test?

6539