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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is Single Phasing fault???(not single-phase fault)

6 11821

How we calculate the current carriying capacity of the different sizes of Aluminium busbar ?

3 10233

when is the Ohms law is applicable?

11 13186

What makes the difference between 50Hz supply and 60Hz supply which one is economical? What is the use of using increased frequency?

5 6798

why middle phase should used for earth fault and other phases used for over current in overcurrent and earth fault relay?

7 5694





what is different between IP55,IP54 and IP66?

2 47228

which technique servo motor tested o.k or faulty ?

1 2744

If we have a 2000kva load,How much kvar capacitors we go to add to improve the power factor at 0.9?pls give the calculation and fully theory?

2 4638

what is a difference b/w earthing & neutral?

5 6826

What is the difference between Class PX & Class X CT's

2 15365

What is the difference between MPCB and OLR?

11 36819

What is Meant by Load factor in Power plant?

2 10778

What is the formula formula for Busbar sizing and what are the things to be consider for Busbar Calculation?

1131

What are the factor to be consider for CT selection in 132kV substation?

839

what size of copper busbar use for 11kv 630A

3 7114

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Un-Answered Questions

discuss the diffrent types of chromatography and their uses. In not more than 10 papers oc not less than 8 papers

837


Is class is a abstract datatype in java?

692


I have 2 yrs exp in hr (recruitment,admn) now i'm working as a crm with some hr exposure? Is this ok ?

754


How many Key we can define in remove duplicate stage?

79


How to Calculate PF with interest or without interest.

2047






Apparent power is expressed as V * I(Conjugate). Why not in V * I ?

2546


which modulation is better in terms of power and bandwidth angle or amplitude modulation ???

935


HAVE ANY ONE LIST OF THE FORMULAS WHICH ARE USED TO SOLVE SOLUTION OF THE DEVICES (DIODE,TRANSISTOR,CAPACITOR,FET,MOSFET)?

948


How would you determine who has added a row to a table?

1007


how is work pressure switch& level switch?what is the principle of this?

1320


List of equipments required foe industrial repair lab.

683


can i use the six sigma method which is used in management area, in state estimation of power systems?

648


What are some of the different ways in which information could be encoded in spike trains?

701


what are the types of design? which type of method is used at what type of design & why?

1044


is oil viscosity affect on motor current?

730






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