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Siemens Interview Questions
Questions Answers Views Company eMail

What are the types of earthing? Explain dagramatically.

 3 6478

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?

 5 10250

WHAT IS DIFFERENCE BETWEEN MANUAL CONTROL AND MAGNETIC CONTROL AND STATE ITS ADVANTAGE /DISADVANTAGE

 1571

why we not using 230kv directly why we are stepping down and then stepping up

 2 4280

earth-fault relay is? a)directional relay b)non-directional relay c)protective relay d)admitence relay

 2 5554

What is the difference between MCCB and MCB ?

 4 8433

why anti pumping relay is not given to tripping coil of the breaker? why only to closing coil?

 2 5217

What is triple entry system.

 8 21977

What is the basic principle of vibration measurement by BENTLY NEVADA vibration measurement system? and Why it gives the -ve voltage output?

 14 130621

why rating of alternator in kva & induction motor in kw

 9 17036

I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

 1773

please explain briefly about account receivables and payables

 2 7892

what are the precuation should be taken ahen installing power transformer,circuit breaker,current & potential transformer

 1579

in a dc motor we supply current only to the armature conductors,from where is the field winding gets excited then??

 3 4793

i want the csharp questions&answeres

 1487

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Un-Answered Questions

What are firewalls?

220

Why does java have different data types for integers and floating-point values?

527

How do I compare two binary files?

512

what is the difference between bussiness group, organization and company.

2020

CAN TWO VECHILE PASS TO RAJASTAN FROM NASIK ON ON ROAD PERMIT

1616




what is sas and what are the functions? : Sas-administrator

530

What are diverse clauses that form a part of sql?

593

What is heightened privileges browsers?

563

the cordinates of A,b,c are respectively (2,3) ,(4,4) AND (0,-2). If abcd is a parallelgram. The coordinates of D are

508

What class.forname does, while loading the drivers?

531

A crushing unit blasted 1650Mts in the month of March 2009. The rate of Royalty to be paid is rs 35/- Per MT. Advance royalty was paid rs 250000/- on 1-3-2009. pass journal entries from the advance royalty

1433

How to create composite key in hibernate using annotations?

208

Why is the importance of a consistent style?

222

What is DDR (Double Data Rate)

1554

What is main in java?

504