Answer / pvl

This depends on the design of the turbine. I worked with turbine with 4 critical speed bands. It is the natural harmonic frequency where there is maximum vibrations in the turbine. These speed bands can be more than one. Length, weight and steam entry type are the factors which decide the critical speed bands in a turbine.

what is different betwen Process zero and atm zero?

1 Answers  

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what is the difference betwwen the 2wire level transmitter and 4wire level transmitter??and their applications also??

2 Answers  

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Hi Friends i need Electronics&Instrumentation Engg question papers for BARC written test by coming 20th May 2008 pls post ur use full info to kkumarei@gmail.com. Or for suggestions pls give one missed call to 9962122264

0 Answers   BARC, Wipro,

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what is intrument termination what is commisioning

3 Answers  

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we re giviang 24v supply to transmitter and we getting output from tx?now my question is wht we call this complete proces?

2 Answers  

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What is the three element? And how it work?

1 Answers  

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What happens if the Displacer has fallen or has a hole in it?

1 Answers   CCIE,

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what is the meaning of HART ?

2 Answers  

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ON RADAR INTERFACE LEVEL TRANSMITTER IF DI-ELECRIC IS WRONG WITH CONTINIUS PROCESS THAN HOW CAN INDENTIFY OR HOW CAN I PUT NEW DI-ELECTRIC VALUE?(ROSEMOUNT-TDR-3300-COXIAL PROBE TYPE)

1 Answers   Chevron Phillips,

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what is the principal of operatio of dc motor

1 Answers  

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How can measure flow in oil line?which type of transmitter is generally used?

1 Answers  

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diff between dead wt calibrator n pressue comparator?

4 Answers   Invensys,

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