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  • ABB aptitute test questions (5)
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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How to identify Motor leads in their order coming out from winding without tag (U1, V1, W1 & U2, V2, W2)?

6 36345

I have a transformer whose primary operates at 230V, 50Hz for which the secondary voltage will be 12V, 50Hz. What will be the secondary voltage if the primary is fed with 400V, 8KHZ Signal?

6 5576

Why TAP changer provided in primary side of HT transformer ? and why not in secondary?

9 38870

What is system earthing?what are the types?

1 1646

Why P.F(power factor)relay should not be connected to the D.G(diesel generator) incomer side

1 2225





How can we calculate the KVA rating of a Distribution transformer from its core details?

833

What is the min.& max distance between two earth spikes is required for measuring earth resistance of an earth pit? Is the manufacturer of Earth tester decides this? Pls explain.

3 6208

What happens if the capacitive reactance of a transmission line is very high?

5 10868

what is the purpose of battery tap voltage.

3 13709

Why we Specify Transformer rating 433 V Instead of 415V ?

7 18661

what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

756

what is the procedure for three phase motor differential relay testing can it do with single phase test kit?

1 10289

What is power factor ?What are the benefits of improved power factor & how. Please explain with examples.?

5 8546

What is Grounding? any difference b\w earthing? if yes plz explan??

3 4287

why generally transformer are in star to delta or delta to star used?

8 15140

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Un-Answered Questions

iam new testing, i want improve writing test cases and bug defect etc? any on give suggestion pls?

643


How do I dial a phone number without using the MSCOMM VBX?

394


Can anyone list out major scenarios for an application managing drug composition?

678


hello! i am a new/fresh industrial electronics enginner ? I am going to have an interview on 10 May. What topics and questions should i study for the preparation of my interview and what will be the possible questions that one can ask from a fresh industrial electronics engineer ?

875


Hi All we are porting are application from linux 2.4 to 2.6 .Please let me know what kind of manual balck box testing we can use to test application and how.

996






wht is charging gateway protocol wht is it functio

930


Which forms in use in service Tax, Excise duty and Vat for the return.

872


what is actual drum level and compensated drum level?

993


How many VSC based HVDC are there in India and the world

874


Can any bosy send interview questions on Weblogic Application Server.

1024


Is WebSphere certified on PeopleTools 8.1x?

955


How to analyse antibacterial data ?

888


why steady state stability limit is greater than transient stability limit ? How it can be explained ?

1205


What is the automatic voltage regulator with servomotor?

823


what is semi technical process?

1183






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