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Engineering Interview Questions
Questions Answers Views Company eMail

in power station power measuring unit is KW but in transformer is KVA why?

4 6955

what is mean by busbar and what is the difference between busbar,transmissionline,feeder,distribution line

5623

I hv a question regarding power factor improvement just after transformer. I request you to reply me plzz. thank you sir. My friend has a small unit of fabrication. in his factory the main load is a welding machine, lathe machine, grinding machine. this load is not continuous type. now our electricity board has installed 16 KVA, 11000/433 V transformer for our factory. In the energy meter (trivector meter) at LV side of transformer, i hv seen power factor value of 0.15 only when only 3 KW load was flowing. Further electricity board has suggested to install 4 KVAR capacitor at LV side after energy meter. Now my question is that if we permanantly install and switch on 4 KVAR capacitor after energy meter, during some load on transformer and also without any load on transformer, wht will be the power factor shown in energy meter?i dont want to get any penalty by electricity board, so plz suggest me if i can permanantly install and switch on the 4 kvar capacitor or not at LV side of transformer just after energy meter? Thank you again and awaiting for ur positive reply soon.

9 12317

which is osillator is most used in PCB design? why?

3 6273

Diffrectiate between earthing and neutral

TATA,

6 9657

what is the size of A4 size paper?

Bhel,

7 10766

what is the length of a cigratte?

Marlboro,

4 8221

Why converter duty transformer neutrals are not earthed...i am still not sure if this question is also correct...Please email at ranjan120482@gmail.com

2286

how to calculate the bus bar current rating

2 24471

How to decide CT & PT ratings for a given transmission line carrying some rated voltage?

2289

How to decide the rating of CBCT? We have 6.6Kv switchgear & having 50/1 cbct ,i want to know how this 50/1 A came? On what basis we decide CBCT reting?

Cross,

1 8710

What is difference between Step Up Transformer & Booster Transformer? can we used instead of any one?

CS,

2 17430

Difference Between Differential Relay and Restricted Earth Fault Relay of Power Transformers

KSEB,

1 11380

How to calculate sand , cement quantity for 23mm thk brick work(10x10)

5130

what"s the cement, sand, aggregate(consumption) quantity for 10 cm thick roof slab (1:2:4)

2799


Un-Answered Questions { Engineering }

If any changes done in the process of production what that is called.

1852


Explain different between two stroke engine four stroke engine?

883


What are the effects of carbon on the properties of steel?

1045


Explain what are the assumptions made on conservation equation?

1137


Where is mangenese steel used?

1036


Hi my dears I have 2 questions. 1- how many types of test are there at all? 2- how can I define test characteristics (such as test duration and parameter severity)in developing a modern technological equipment? I tanks you for introducing or sending a text handbook or guidebook file for me. thanks for your coming answers. yours sincerely

2186


Difference between resistance and resistivity

1554


How is efficiency of DG set calculated? At many places I found the efficiency to be mentioned in percentage. But at some other places I found kWH/ litres. I want to know how dimensionless percentage value is arrived at?

1878


Name four important properties of a good refrigerant.

1007


How is the leaning tower of pisa supported?

1031


Can please tell mi about SIOS, PRM, SERVER, and what is the diference between PIN LAN, PCS LAN,APC Server, and please send the Doc if possible for referance,mail id patil_amit17@yahoo.com

1914


what is the purpose of silicon dropper used in battery charger?

7394


what are the maximum available current, voltage ratings and switching speeds of the power electronic devices thyristor, power mosfet, igbt, and mct?

2066


Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?

1859


What is the exact formula for one weber of magnetic flux?

2096