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Siemens Interview Questions

Questions Answers Views Company eMail

What are the types of earthing? Explain dagramatically.

3 7668

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 11807

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

2090

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

2 5250

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

2 6589

What is the difference between MCCB and MCB ?

4 10088

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

2 6138

What is triple entry system.

8 24513

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

14 135078

why rating of alternator in kva & induction motor in kw

9 19655

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?

2320

please explain briefly about account receivables and payables

2 9046

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

2115

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

3 6122

i want the csharp questions&answeres

1970

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Un-Answered Questions

What is a table in oracle?

982

Why high latent heat of vaporisation is desirable in a refrigerant ?

1132

How do I extract part of a text string in excel?

652

What the sp register does in a program?

1033

At 50 Centigrade (Diesel oil) what is its cast?

2047

Dear Sir, Please what is the HR introductions of the belows: - Skills training - Performance measures - Vacation leave administration: - Retirement plans: - Employee handbooks: - Company publications: - Labor low compliance: - Relocation and outplacement service. - Policy creation: - Policy communication: - Record keeping - Policies to ensure lawful behavior: - Reporting: - Posting information safety inspections: - Accessibility accommodation - Human resource planning and forecasting change management.

2159

How to assign alternate class to rows in angular js?

785

How to extract a unit value from a date and time?

946

Differentiate HDFS & HBase?

cause of cylinder test failure

3310

Explain the term recession?

1023

What are the benefits of web application?

849

What is rollup component?

1247

What is use of UNNEST Function?

125

What's winword exe?

582