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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the Relation b/w star delta starter , DOL starter and two speed starter. if we want to rotate a 20 kw fan in 2 speeds which type of two speed starter we have 2 use?

1 3578

How to calculate transformer capacity requirement for a project site?

4 17202

what is use of capacitor in fan

8 17304

Advantages of low voltage drive (control panel)

1 2523

what would happen if reactive power (kvar)is increased (more)or decreased (less)? how much exact reactive power should be maintained? and what should be done for that

874





what is the maximum load on for 10 kva & 25 kva transformer

8 32725

what is the basic difference between capacitor and condenser ?

17 39775

what is isochronous mod? what is voltage drop mode and p.f mode?

1549

How to Calculate Stc Rating of an indoor type VCB Panel? What is a full form of STC?

1 4206

present we are having 0.8pf but I want increase it up to 0.99 so what is the formula for it and how can i calculate?

3 4029

what is the first step of dg shycroning ?

2 2374

what is cascade speed control device?and how this device control the speed of motors?

686

11/.433KV, 100KVA TRANSFORMER is supplied with .433KV AT ITS PRIMARY. HOW MUCH KVA IT CAN SUPPLY

7 9656

difference between earthing and grounding?

2 4358

What is static Device & Mechanical device? Is transformer a static device?

5 25979

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Un-Answered Questions

Can salary paid to promoters before incorporation be taken as a part of pre-incorporation expense? If yes how is the TDS part to be dealt with?

1253


what is the effect of earth on capacitance in 3-phase and 1- phase transmission line?

872


I have a existing Oracle applicttions and need to bring one of the new business on it. The new business will use GL, AP and FA. We will use existing COA. This business will have 3 sets of books (1- tax book, from April to March; 2- Primary book, from July to June; 3- Reporting book, from July to June); All books will have same currency; HOW DO I TRANSFER DATA FROM PRIMARY BOOK INTO TAX AND REPORTING BOOKS EVERY MONTH OR ON WEEKLY? IS THERE ANY STANDARD ORACLE PROCESS WHICH CAN BE SCHEDULED? THE REPORTING BOOK WILL HAVE DIFFERENT DEPRECIATION METHOD SO HOW DO I NOT TRANSFER DEPRECIATION FROM PRIMARY TO REPORTING BOOK AND DO SEPERATE DEPRECIATION IN REPORTING BOOK FOR THE SAME ASSET THAT IS ALSO IN PRIMARY AND TAX BOOK?. HOW DO I APPROACH ON SETTING THESE NEW SETS OF BOOKS? Thanks, KK

752


What is the use of progress Bar Control?

748


What is the thickness of slab for 600 sq each) 2 slab construction. What should be the size of steel rod?

364






WE know that for Inductor X=2pifL,In DC f=0,then X=0 so,V=IX=0;But In the DC excitation of rotor of AC generator,DC motor field coil which coils are inductor so why does not applying DC voltage short the rotor coil of AC generator and field coil of motor?If it would then DC source might be damaged but it is not happened. Why does the strand conductor of Electrical power transmission line make twist?

2511


how do u estimate the depth of the session scheduling queue? Where do u set the number of maximum concurrent sessions that Informatica can run at a given time?

761


what is the use of FR-4(flame retardant)in PCB design why dielectric material used in inner layer in PCB design technology??

650


what do u understand about FACTS? how they are useful?

622


How WDM works in wireless system...as we say that it works in optical and signals transmitted in this are light signals...??

489


how do we calculate quantity of cement sand and aggregates in 1m3 of m20 m25 grade concrete?

989


What is the use of SOCK_DGRAM Socket Type?

290


what quantities of work done in terms of sq.mts/day/ of 8hrs for each varpenter (shuttering) and Steel fitter in terms of Tonnes. For slabs, Columns etc.?

802


define risk management system with example ?

729


which book is better for jdbc ,servlets and jsp

813






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