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ABB Interview Questions
Questions Answers Views Company eMail

what is the flip flop

14 11235

Explain the working principle of servomotor

20 40698

why we step down voltage level from 33kv to 11kv and 11kv to 415v.Instead we can step down voltage from 33kv to 415v directly using single transformer.

12 51542

WHAT IS THE DIFFERENCE BETWEEN PLC AND DCS

55 89490

in which welding process liquid metal is poured?

18 10132





which type of architecture 8085 has? what major and minor differnce of 8086&8085

16 24902

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.

11 8300

1. Why a DC motor starter is called 3 point starter

21 61238

Transformer's core is made up of which material and why so?

10 22525

tell 2 reasons for why only copper is used in domestic wires& only alluminium in transmission lines ?

10 10605

how much loading in terms of ampere can put on 5 MVA,33/11 KV TRANSFORMER having rated current 263 Amp ?????????

11 18727

1. what is the power factor and whatis his losses 2. what is the working procedure of 51RNB AND 87 relay

3 2979

what is divercity factor?

4 4875

why transformer is conneted to dc for polarity test.it doesnt work in dc?

1 4909

How to connect frequency meter in metering circuit?(single phase and three phase frequency meter)phase to phase or phase to neutral

7 20759

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Un-Answered Questions

how to delete four out of five duplicate records in a table using sql

650


Why we use 4-20 mA Analog signal for the PLC input? Why not 0-20 mA? Why not 5-25 mA?

1518


How the new states are generated in genetic algorithm? a) Composition b) Mutation c) Cross-over d) Both b & c

1172


What are the most common sources for cGMP

1300


difference between Response.write,server.transfer and also which one is used when ?

739






What are the tuning techniques you applied during your last project

741


suppose if you added a coloumn to db2 table, How would it be the Impact analysis?

724


in differential pressure transmitter,min&max pressure range for hp&lp

747


What determines the level of detail written to the APPSRV_MMDD.LOG?

452


last Airforce test paper

854


How to Save and load metafiles in a BLOB field without using DBImage ?

859


how work a harmonics filter(L-C combition).

760


What screening and selection methods are available, and which ones are most accurate? Explain.

937


what is the difference b/w ATS and HTS?

762


what is meaning Replication factor?

101






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