Electrical Engineering Interview Questions
Questions Answers Views Company eMail

in most industies hormonics present up to some level. what is limit ? and there effect?

Bhel,

3 4033

how we calculate size of exciter(excit. volt and current) for generator?

century,

1 4001

what happens if generator is running leading power facotor?

century,

9 10498




If the supply voltage is same (say 440V) whether a system designed for 60 Hz frequency will work with 50 Hz frequency or not , if so pl. give clarification.

ABB,

11 8254

why generaters need four earthings

Sasken,

5 4387

how many earthing required for ups, what should be the earth voltages

Juniper Networks,

9 15559

what is transformer

ABB, ETA, Jindal, CERC, Advance Power Controls,

61 41411

i need online ups battery calculater

1 2415




In domestic supply, when neutral touches earth the earth leakage trips. Does this mean that if the star (neutral) point of an alternator is earthed that power will flow to earth i.e. a direct short to earth?

1 3952

How one can check the faulty capacitor, diode when connected in the circuit ? and when you can not take them out ?

4 6540

What is the Difference Between MCCB & ACB & VCB

L&T, TCL, TCS, Siemens, Divine, JLL, Jyoti Ltd, Absotherm, Delton, Kirloskar, RPP, Teekays, YSJ,

58 249669

what is dc voltage?

2 2857

HOW TO CALCULATE THE CABLE SIZE FOR POWER CABLE, CONTROL CABLE AND INSTRUMENT CABLE

TurboTech,

1 5177

In a 3 phase squirrel cage induction motor why does rotor rotate? will 3 phase transformer rotate like a motor if it is placed on bearings and powered up? give reason

Siemens,

10 18924

WHAT DRESS I SHOULD WEAR WHILE ATTENDING AN INTERVIEW? PLEASE SPECIFY THE STYLE AND COLOUR. CAN A LADY WEAR CHUDIDAR FOR AN INTERVIEW?

Wipro,

6 9558


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Un-Answered Questions { Electrical Engineering }

how does directional relay work incase of ac ?

127


what is the difference between the characteristics of two different phase bushing of any transformer

522


Hi guys! Plz help me to answer the following questions. 1. What are the types of transmission line energy losses? 2. Why are the VLF are used some types of services? 3. What frequencies are used for reliable beyond the horizon terrestrial communication without repeaters? 4. To permit selection of 1 out 16 equi-probable, what is the number of bitis required? 5. What is the most common modulation used for telegraphy? 6. What is the multiplexing is used to increase the capacity of the optic fiber? Thanks

834


In 6600/√3/110/√3v voltage transformer,how much output voltage in open delta transformer,after removing 1-phase of primary side on transformer?

663


HOW TO CALCULATE EARTHING SIZING?

676






how does this job compare with others you have aplied for?

468


what is the necessity of under ground cables ??

672


can anyone explain 11kV 3core cable megger,hi pot test procedure with connection details?

1782


how does the thyistor work in dc drive?

698


What is Surge Capacitor? Why it is use in Generator Circuit Breaker?

3772


What is bridge rectifier and explain with details

684


Dear sir, iam completed iti ncvt electrician 2000-2002 & diploma electrical eng completed 2008-2010 distance education in rvd university, still i got B licences only but my working company want C licences, how to i get c licencese pls reply me iam in critical situation thank you karthick 9841637803

470


how to determine motor size for a fan application?

857


what is size of 3phase 4wire cable to be used for 11 ton ductable A.C and how to calculate cable size for different load

1700


Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?

547