Answer / muhammad ismael

When the downstream flow requirement of a compressor will increase, the pressure will decrease here and pressure on suction will increase. This may effect back flow in compressor or a physical damage also. On that time flow control system try to change the speed of Drive (Motor & Turbine) to match the new requirement of flow but speed of a large mass (Driver + Compressor) is not possible to change with in a short period of time. so, to avoid from surge a control valve used from suction to discharge or a valve used to blow the high pressure.

In my company plc based winders are operated. one day there was a data transmission failure alarm shown on pc. as per sir instruction we have reset master plc but winders were not triped and alarm gone. so what master plc do?

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pls send me the 10 years technical question papers of NTPC AND BHEL

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describe yourself?

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Is SmartPlant Instrumentation taking advantage of the quality assurance procedures within Intergraph?

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What is DDC-MIS?

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Why is the orifice tab provided?

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how will you check torque value during Factory acceptance Test for control valve/ESD ON/OFF VALE how will you confirm this torque value is being correct, Which document will you be refer.

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