Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what's mean by Transient stability analysis?

1 1557

what's burden resistor, why it's used?

Bhel, TVS Group,

1 20926

what's transient & sub- transient reactance means?

2 41881




what's ripple content in rectifier? how it formed?

1 2081

what's float charger and boost charger? why it's used?

Siemens, APCPDCL, Rolls Royce, PTCL,

2 38962

In track electrification Either we use single conductor or double conductor? why?

2 3036

In electric motors, according to the no. of compartments, The no. of input's (pantagraph collector's) were increased, why?

1 1535

what's the difference between induction generator and synchronous generator?

IBM,

1 2241




what's the exact magnitude of current, flows through Neutral?

652

While starting a high capacity motor, it takes 6 times the full load current. Why it doesn't trip relay or CB's in that network?

4 3938

How addressable fire systems work? Pl. send details with architect.(Loop), also send details regarding Gas system. Pl. help me.Thanks

Siemens,

1 3274

HOW TO FIND OUT 1. LINE CURRENT, 2. PHASE CURRENT IN AN ALTERNATOR / TRANSFORMER WHICH IS FEEDING A I)STAR LOAD ii) DELTA LOAD, USING A CLAMP METER. NORMALLY WHEN WE USE CLAMP METER IN A DG SET THEN WHAT DO WE GET?? PHASE CURRENT OR LINE CURRENT.

Bhel,

13 24139

WHAT IS THE THUMBRULE FOR FINDING OUT THE CURRENT CAPICITY OF A COPPER WIRE?? 2.5, 4, 6MM SQUARE ETC...

5 9114

why we step down the voltage from 440 to 220 in machines

4 3393

is there any concept of armature reaction in Induction motor?

4 9490


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Un-Answered Questions { Electrical Engineering }

what is the voltages using in movie theaters??? why ??why not other??

935


What is the relation between frequency and motor rpm?

495


sir please send me techinical questions for junior engineer posting in bangalore railway i am diploma holder

694


for opening electrical shop, tips needed.

375


What are books to be referred for KPTCL exam?

2259






Why is tan-delta test and capacitor measurement done on alternator?

694


what is the question paper model for section engineer in RRB

743


Can we Co-ordinate relay in Load Break switch?

620


Explain and give me an example of a time when you had to explain some new procedures to your co-workers for quality service delivery, how did you go about it?

551


what is the effect of un-synchronized power.

592


errection check list for transformer maintenance

1160


Dear All, I am new in construction company , my boss ask a question at time of interview , If we have 60MW generation and Single Power Transformer step-up we have. if CMR 50/60MVA , ONAN, ONAF respectively , is it sufficient or not ? for that much power to transfer,

347


Calculate torque developed by the 3-phase, 5 H.P., 4 pole induction motor runs at 1500 rpm A 23 N-m B 21 N-m C 10 N-m D 0 N-m

1135


how can check the resistance of battery contact?

908


A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

1654