Electrical Engineering Interview Questions
Questions Answers Views Company eMail

describe your self.

1 1861

what is the defination of electrical engineer.

33 20040

what is the meaning of elecrical.

Infosys,

31 13388




IS it possible for a feedbacksurge to travel over a wireless connection?

HP,

1 2048

What is your favorite aspect of the engineering field?

1 2607

why is the rating of transformer done in kva and not in kw.

Honeywell, Satyam,

21 19993

why transformer ratings in kva?

KCP, Emco, GE, Wipro, TCS, Bhel, College School Exams Tests, DOW, Esab, PGCVL, Sodexo, vtps,

99 163299

Where the excitation is given either stator or rotor in actually in power plants?

8 6360




Where the excitation is given either stator or rotor in actually in power plants?

13 10944

what is current

CLG, Bio Enterprises,

53 26885

What types of CMOS memories have you designed? What were their size? Speed? Configuration Process technology?

SECL, IBM, TNPL, GE, Sun Pharma, AFG, Afghan Telecom,

1959

What work have you done on full chip Clock and Power distribution? What process technology and budgets were used?

Divis Laboratories, Sainor Labs,

1342

What types of I/O have you designed? What were their size? Speed? Configuration? Voltage requirements? Process technology? What package was used and how did you model the package/system? What parasitic effects were considered?

743

What types of high speed CMOS circuits have you designed?

IBM, Ansal Housing,

831

What transistor level design tools are you proficient with? What types of designs were they used on?

Jindal,

1 992


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Un-Answered Questions { Electrical Engineering }

How much load can take a 16 mm aluminum cable 3 phase

469


. What is Electrical Life & Mechanical Life of Circuit Breaker? 2. What is Electrial Life & Mechanical Life of Magnetic Contactor? 3. What is RCD, RCCB & RCBO? 4. What is the Between defferance of RCD, RCCB & RCBO?

1921


what is the transformer turn ratio formula and give some examples?

1168


An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The rotor reactance at stand still is A 2 ohm B 1.25 ohm C 3.15 ohm D 2.25 ohm

939


Compare salient pole and cylindrical rotor machines.

621






send me all basic electrical question and answers

1451


to vary valtage from 0 - max a variac is necessary . so how to design for high power applications nearly about 200KW power

670


in the case of 6.6kv motor starter combination contain fuses on it VCB. but in 11KV motor starter combination Fuses are not using in it's VCB why?

749


for 100 HP Induction motor service factor is 1.2(SF) we placed a VFD at the motor side load is balance with 0.3 Amp's Phase to Phase but at incoming of VFD load is un-balance with 10 to 20 Amp's what will be cause of load un balance

434


How to decide and select the different earthing wire size for the different types of earthing

1025


What will be the voltage impact on secondary side of two transformers with different vector groups when both voltages are compared.

716


Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1.  H1-H2 = H2-H3 H3-H1 2.  H2-H3 = H3-H1 H1-H2 3.  H3-H1 = H1-H2 H2-H3 For the LV side also: 4.  X1-X0 = X2-X0 X3-X0 5.  X2-X0 = X3-X0 X1-X0 6.  X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0  H2-H0  H3-H0    X0-X1  X0-X2  X0-X3 128.0  119.9  7.2      29.2   13.3   15.8 70.7   128.4  59.2     23.4   22.0   3.6 7.2    120.1  128.1    13.4   29.3   15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?

527


why r we using shell transformer for low voltage

680


i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.

378


explain all the classes with example

631