i am having information technology branh ....... can i prepare for psu exam

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What is a snubber circuit?

2 Answers  

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How does pyrometer works?

1 Answers  

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Hi friends, from Aug 4th onwards iam getting spikes for analog inputs in our DCS for a period of 800ms. I throughly checked every thing, finally i found that the DI, DO's from MCC panels shields are terminated in the Signal Earth where Analog Input signals shields are terminated. Is there any problem with this type of termination?. i checked the induction voltage from MCC and getting around 25VAC, please suggest me in this concern. Our plant is 8months old only. DCS is Siemens Make Simatic PCS7, and the transmitters are Yokogawa make.

1 Answers  

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1.can you use SCADA instead of DCS,DCS instead SCADA 2.Difference between DCS and PLC,can their role be reversed i.e. role interchange 3.Difference between RTU and PLC

0 Answers   IOCL, Lakshmi Machine Works,

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types of valves

3 Answers   Bindal Papers, Kuwait Oil Company,

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hye SAM acn u send your e mail id, so that i can solve my query through e mail?

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flow transmitter range is 0 -500 mmwcc but the transmitter shows 12 ma for o mmwc instead of 4 ma ...how to solve this problem when we apply 375 mmwc it shows 16 ma

3 Answers  

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In VVVF DRIVES VOLTAGE IS ALSO VARY WITH THE FREQUENCY. HOW? WHAT IS THE DIRECT FORMULA RELATING THESE TWO.

0 Answers   India Cements,

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

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What is maintenance planning?

3 Answers   Qatar Airlines,

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How to check loadcell working or notworking

2 Answers  

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