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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why red,yellow,green colours lamps are used in the traffic control?

Samtel,

2 4297

What type of bulb used in small size cross symbol boder and original flame type(Deepam)?

1 2095

Why heat produce in AC machine higher than DC machine?

2 3820

Wat is the best to use in a generator a 6.5kva or a 7 kw

4 9055

my name is venkat .i have good percentage in my academics(ssc 86, intermediate 83 b.tech 73) my question 1..after completion of my ssc i joined in bpc but i didnt got rank in emcet so i completed MPC in one year compartmentally ..so here what am expect question from this background?

1065

i am venkat i got gre 930(verbal 270 quanta 660) and my toefl score 105..here question is why u got less score in gre ? what i supposed to tell...any chance of rejection is there...my accadamics record is very good

1289

How does a digital electronic meter work??????

1234

how much test voltage should applied for tan delta test.

Electrical, TATA,

2 3757

What is 11 N1 and 12 N2 in single phase Transformer ?

1128

How short circuit MVA(Fault MVA) in a power system calculated for calculating number of earth plates ?

NA,

1446

While connecting the flood light plug on to the 415 V distribution panel,there was spark and the cable got burnt. Three ignitors of the flood light also burnt of. The lamps are of 400 W (total 6 lamps) connected through 1.5 mm2 cable. The plug was immediately removed from the circuit. There was a 30 mA RCD connected and a 250 A MCCB; however both did not trip. What could be the possible reasons for the circuit devices not to trip?Can someone assist please. Additional info if needed can be provided.

2 2708

What is the main difference b/t Earth leakage relay & Earth fault relay.I want protect my LT panel(Distribution Panels)which relay have to propose.......

1 2990

What is the difference between neutral and ground?

Cethar Limited, Torrent Power,

3 5576

How many types oil using in transformer ? How many letars using in transformer..?

TATA,

1146

what happens when dc generator coupled with cycle shaft.also explain what happens when its loaded

NTPC,

1263


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Un-Answered Questions { Electrical Engineering }

what is feeder bay?

616


what are the application of over current relay?

3479


specific difference of ICT&Auto Transformer

880


Explain using drawings what is reverse PID action w.r.t PID controllers.

2264


As a electrical engineer.. what are the basic norms should follow in transformer oil testing.. 1.What is the Electrode type? 2.How long time you will give for oil testing?

2686






what is the requirement regarding earthing of Single conductor with AWA

1249


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

1395


can we start slipring motor on star delta like we start induction motor ? if yes where will we connect ?

1120


I completed iti in2004 I was worked in A grade contractor can I get c licence

861


Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?

251


stand by earth fault protection (51G) for transformer rating 2000 kVA,Dyn11,33/0.400 V. LV NCT ratio and necessary resistor and metrosil values how to calculate

1367


write a c++ code that receives an integer number and display the sum of the number and its revers integer?

1179


When distance between two pulleys is not fixed, the tension of belt is adjusted by a) driver shaft b) driven shaft c) adjustment screw d) belt

1126


Difference between RCCB, RCBO and ELMCB.

2944


any one can explain the stages of a knee point which is taken during ct magnetising curve.

918