Answer / nirmal

Magnetic flowmeter works on the of Electromagnetic
induction and vortex flowmeter works on vortex shredding.

why we use 24 vdc in instruments mostly?

2 Answers  

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when we calibrate the DP transmitter at that time which matrial we used in pressure pump?

4 Answers  

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1)why we are using mostly Ultrasonic Flow meters to measure flow, rather than Radar waves? 2)why we are using Ultrasonic waves and Radar waves to measure the Level?

1 Answers   NTPC,

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What is input and output of plc & dcs

2 Answers  

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what is difference b/w Earth and ground

2 Answers   PPL,

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What is surge in compressors? How to detect and control it?

3 Answers   Kharafi National,

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I am pujita completed Electronics and Instrumentation Engineering.As a fresher i am going to attend the interviews.Could anybody guide the topics/questions covered mostly in interviews.

11 Answers  

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What is the meaning of Dry contact and Wet Contact related to to sensors?

5 Answers   Emerson, Google,

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WHY TEMPERATURE TRANSMITTER USED AS WE CAN CONTROL THROUGH THERMOCOUPLE/RTD

5 Answers   Samsung, Thermax,

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Why DP level transmitter preferred for closed vessels and Radar level transmitter for open tanks??

2 Answers  

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Difference b/w SCADA & DCS

8 Answers   Siemens,

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why we use 0.2 to 1.0 kg/cm2 output in control valve

4 Answers   GNFC,

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