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Siemens Interview Questions
Questions Answers Views Company eMail

What are the types of earthing? Explain dagramatically.

5542

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?

8794

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

1113

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

3408

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

4557

What is the difference between MCCB and MCB ?

7224

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

4294

What is triple entry system.

19968

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

125500

why rating of alternator in kva & induction motor in kw

15100

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?

1303

please explain briefly about account receivables and payables

6924

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

1134

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

4042

i want the csharp questions&answeres

1156

What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.

1449

How to assign a project/tenant to a user?

1

What is the difference between file structure and storage structure?

213

What is a windows based application?

205

What is a height of a tree?

194

How to Obtaine the Socket Address?

720

Explain the difference between servletcontext and pagecontext in jsp?

208

Explain the difference between constructor and ngoninit in angular 6?

186

How vsam files are read in cics pgms?

295

What is definition in c#?

195

What are the differences between mysql vs sql server?

186

Does law school require a political science/international studies major?

1

How to make a textview to be editable?

214

What happens when an inverter is placed between both inputs of s-k flip flop?

235

What is overflow and how it's happen

1161