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Engineering Interview Questions
Questions Answers Views Company eMail

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

ABB,

2036

How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?

HAL,

1813

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.

ABB, HAL,

3 9433

We use ungrounded DC system (220V/110V) for control and protection system in substations etc. Suppose we have long 2 core DC cables running from our DCDB in control room to the load (length of around 2 to 3 km). Do we need to protect these long DC cables from earth leakages or not? If yes how?

Siemens,

5 11659

What Are Choosed Seminar's Best Topic..? What Are Dezined Software...?

2007

explain in detail HV & LV bushing connection in power transformer (110 / 11 kv 16 MVA)

TNEB Tamil Nadu Electricity Board, wbsedcl,

6 19895

How can I model an open-delta ground transformer for a network supplied by 4 unit GTG and power transformer in ETAP?

13727

When should I use earth leakage circuit breaker for incomer and when should I use it for each feeder seperately?

1 3668

How can I communicate with an Areva MiCOM P121 relay by RS485 port? In other word, which command can I send and what information can I have recieved? please send some refrences, please. thanks

3 10389

Off Load Tap changer generator Step-up Transformer, My question is, is safe to operate the tap say I want to change the tap position from 3 to 4, there is not load on the transformer but a 22000v 0r 1100 v is present on the secondary side from the common Bus *22000V/415 v

1 5588

I DO HAVE APAST EXPERIENCE IN MY(SCHOOL/COLLEGE)WHERE I'VE HANDLED RESPONSIBILITY LIKE

Oracle,

1952

the distance from my office to d.g is aprox 400mtrs and voltage drops ibn my office near about 40 volt what should i do p[ls suggest.

6 7030

Do u know epicyclic gear box?What are the pratical application of epicyclic gear box?

6 9356

wat sud b the futher course after b.tech in this field........

1 3691

1.what is the funtion of chiller primary & scondary pumps. 2.what is the use of distribution lines & Types. 3.what is the use the thermal power stations & how much capacity.

Wipro,

1943


Un-Answered Questions { Engineering }

what is a router how it woks? what is a compromised router in networks?how it works? what is a packet loss and packet dropping? what is a malicious packet?when it occurs?

1769


Who were the fellow cosmonauts of rakesh sharma?

750


What is packing Factor ?

1407


Double declutching is required in constant mesh gear box a) To equalize the speed of main shaft gear and the sliding dog b) To provide direct gear c) To equalize the speed of countershaft gear and the sliding dog d) None of the above

1711


what is the difference between -24 : +24 & 0:24 and where it use?

2044


Why we use pneumatic instrument.

1370


What is the meaning of Insulation H for transformers????

2105


Define What materials were used to build the Golden Gate Bridge?

1092


What is the kiosk parts, about them and their functions ? If anybody have some PDFs files or details about this plz send it on tawhidfaisal@Yahoo.com

1854


What are the chemical based procedures used in textile manufacturing?

3


Explain why self closing sounding pipes are used onboard?

956


Sir,I have two years year gapping after the completetion of my 10+2.Then i had studied 1 year chemistry(hons)and had sat for part1 chemistry(Hons) exam..I got 60% in Hons also.I had sat Hons and Enginering Joint entrance exam together in the same year of 2008..But i got better opportunity and I switched to ECE..Sir,may i eligible to sit exams and interviews for any IT company,software technologies,consultancy company,electronics core company..??..thanks...

1966


Synaptic conduction is mostly orthodromic because

2613


What is meant by pwm control in dc chopper?

1225


What are the characteristics of an ideal op-amp.

1015