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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

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

6 14566

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

3 11292

when is the Ohms law is applicable?

11 17626

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

5 8089

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

7 7313





what is different between IP55,IP54 and IP66?

2 53067

which technique servo motor tested o.k or faulty ?

1 3367

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 5690

what is a difference b/w earthing & neutral?

5 8467

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

2 19096

What is the difference between MPCB and OLR?

11 46790

What is Meant by Load factor in Power plant?

2 12002

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

1600

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

1312

what size of copper busbar use for 11kv 630A

3 8296

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ABB Electrical Engineering Interview Questions


Un-Answered Questions

What is Personal Accident cover?

219


How does hibernate help in the programming?

28


The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor?

1135


What do you know about THP-1 cell line ?

1160


Is there the dry coefficient of cement is constant?

1518






What is ctrl e in excel?

113


Which class is used to retrieve data from multiple lists?

220


where do you see yourself in five years from now?

316


List some of the roles of flexible single master operations (fsmo) by the windows server?

33


Difference between final and effectively final ? Why is effectively final even required ?

271


What is state transition diagram in UML?

290


What is hashlocationstrategy?

253


What is SAP HANA 1.5, 1.2 or 1.0 SP03?

31


Metrics of your Project?

1434


What is logical variable?

243