can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know

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explain key exchanges in all security modes WPA,WPA2,TLS?

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what is the different between plc and dcs ? I know full name of this two but I want to know what structure and working style and speed I/O capacity and controller difference?

2 Answers   L&T,

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How to define the size of control valve?

5 Answers  

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If I want to buy a pressure switch & 3-way valve for hot water application then witch parameter I should consider.

1 Answers  

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Why we use 3-15 psi air for control valve input?

2 Answers  

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in i/o panel for digital ouput(do) how much power(in volts) we must give?

2 Answers  

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what's meanning of 1250KVA and how to calculate with Volttage and Current. answer give with example.

3 Answers  

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ALL INSTRUMENTS WORKING PRINCIPLE.

3 Answers   Blanco, India Cements, TVS,

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who's take first position in process in the timing of new installation flow transmitter and control vavle. give the answer with logical trick.

2 Answers  

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can any send me a forbes marshall dtron 316 manual

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how feedback signal frm rtd can be use for 2 purpose, i.e. 1for local monitoring and 2nd for controlling in dcs.so how many wired RTD can be used

1 Answers  

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