Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why do some transmission towers have two insulators at one side and three insulators at the other side

2 3755

sir iam a 3rd yr eee student.no core company comes for recruitment to our college.my aim is to be placed in l and t.tell me the procedures.

1475

I am having a DG set.The 415 V from Generator is step up to 460 v and then the same is used for Induction furnace. before Step up, I am connecting LT load to my factory use. When Induction furnace is in service from DG, when i try to start a motor, the generator is tripped.Please tell me the reason.

3 4396

in ceiling fan and table fan what is the rotating part and what is the stationary part?

5 9022

What is breather? why we use it ?

3 3918

How to set a Zone 1 distance relay for distribution feeder?

Schweitzer Engineering,

1515

why tertiary winding is used in transformer with diagram?

1761

why single induction motor is not self starter?

3 8149

for 644KW load which MCCB should i use

6 6961

what's the thickness of 1.5sqmm wire

Bhel,

1 4878

Give 3 phase transformer connections for 24 pulse rectifier using thyristors.

1588

what is the difference b/w ground & virtual ground?

Accenture,

1818

what is the effect of change in supply frequency on load angle of synchronous motor,all other parameters remaining same?

1876

we use 3 phase supply for induction motor why not use two phase supply .

TLC,

4 5878

how do the stepper motor works.

Vardhman,

1 3394


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Un-Answered Questions { Electrical Engineering }

Why lose 1 phase voltage in 33kv to 415v stepdown transformer

1286


Explain in brief description about the operation of DG sets.

1833


Define stepper motor. What is the use of stepper motor?

657


Differenciate between circuit wiring and sub main wiring with illustrations

1736


Pleae send me last 5 years of Question book about RRB chennai.

1777






what's the difference between 'shaft power demand' and 'BHP' , when we consider electrical load list.

1060


What is the Nyquist criterion regarding control systems?

638


why the field winding in dc motor is not short circuited eventhough dc supply is applied across the winding

1377


What will be advantage if we put some load in neutral of grounded star transformer & loadshortcircuit current,rated current of cable & MCB with example?

1384


how is the cable tray designed & how its total length is calculated for an Industrial plant Say for Ex. (500KW Motor Load)

1442


working principle a.v.r. ?

1885


how to set relay setting? and example calculation...

1499


Pl. give me checklist for installation & commissioning of machine tool.

1732


pls tell what are doing the three phase motor star and delta connetion with circuit diagram and control wiring .

1442


What is meant by vector group

1940