what is start up vent valve ? why it is used in boiler?

8 Answers   ACC, Bhushan Power Steel,

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what is difference between accelerometer vibration sensor and proximity vibration sensor

3 Answers  

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what are the different types of Protocols? & their applications.

6 Answers   Infosys, Sitara Chemical Industries, Syntel, VSNL,

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Hi Friends i am going to write BARC written test by this month 20th (20-5-2008). So please if any body knows the details about this or having previous question papers pls mail me to kkumarei@gmail.com. For Suggestions give one message to 9962122264

0 Answers   PDIL,

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What is the difference between HMI and SCADA?

2 Answers  

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in DCS or PLC we can not put all ai or di,there is calculation through which we can accomodate certain no of digital and analog signal.I need to know that calculation

1 Answers  

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What is Cu-100 and Cu-1000 ? and tell me its application ?

2 Answers  

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Please any one can explain how to calibrate transmitter (smart) online with out remove from the container suppose it is interface level or static pressure level measurement we dont want to remove transmitter from the container mean it is running plant please give me detail. thankx brothers

1 Answers   KNPC,

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two common seiling liquid used in seal pots are:

1 Answers   Thermax,

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What is difference between sensors and transducers?

2 Answers  

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How can you differentiate Instrumentation to Electrical?

1 Answers  

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Why do we use 24V DC supply in instrumentation? What are its merits and demerits??

1 Answers   JSW, MJPRU,

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