Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Can any one know what are the symbols at the down (below) the analog ammeter??? there are 4 symbols which are they ?????

1440

how the capacitance is caluclated if the load is varying to keep the power factor constant(above0.95)

1 3009

what will happen if the field and armature both are made to rotate in a synchronous machine ?

4 4979

Can Superposition theorem be applied to AC Circuits?Can Thevenin's Theorem be applied to AC Circuit too?

HCL, NPCIL, Shivam, Vast,

6 18676

pls tell me about ups internal connection & we have given only 3 phase supply to ups system how get 4 wire (R Y B N )

Bhel, IBM,

2257

how to claculate the ups load in KVA pls give the if any fourmoul?

4 5492

pls tell me function of closing coil of A.C.B.

2862

which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?

TATA,

1538

WHATS THE DIFFERENCE IN USING THE 125% AND THE 250% FACTOR OF SAFETY IN CALCULATING CIRCUIT BREAKERS CAPACITY IN MOTOR APPLICATION??

1537

if neutral earthing is weak of a system then how can we improve it ? Technically explanation ??

CS, L&T,

1 4190

Can any one help me how to set an overload set the range from 2.8A to 4A , rated motor current 22A, CT 60/5A

2 3678

why we ground the scondary of current transformer.

4 5175

what is the name of oil used in transformer

Energy Pack, Genco,

11 18927

what will happen if u run induction motor beyond its rated speed

Adani, BARC, Bescom,

13 17652

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

Schneider,

1377


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Un-Answered Questions { Electrical Engineering }

what is earth fault relay 64T, why it is used in main Incomer and neutral CT of Transformer.

2929


Which level of the Transformer oil got dielectric strengh? And why?

1716


how can maintaince the acb contactor moveing and fixing kit

1561


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

1442


What is contract demand in solar system?

1099






which connection is safer series or parallel?usually which connection we prefer at home?

8215


In single phase ac ups supply when current is measured with tong tester neutral current is found more than phase current.What is the reason?

1580


how desiel generate sart fail of eb?

1649


1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??

1897


Explain Energy and Power signals?

1255


what is the significance of terminal voltage and phase sequence in the operation of paralleling of two generators?

2001


hi if anybody got model questions for cpcl Grade'A' electrical engineer position.send it to my mail please krishkumar22@gmail.com

1456


what is diff. between earthing grid,earthing mess, earting grid?

1830


how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment

1143


What happen if 200 KVAR capacitor connected to power continuesly?

1624