what is difference between OP AMP and differential amplifier?

5 Answers   TCS,

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what are the documentation and instrument identification system used to identify the correct device to be calibrated? name atleast three.

1 Answers  

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what is gas metering system? gas chromatograph? and gas compressors?

0 Answers   HPCL,

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How to measure the vibration..?

1 Answers   Madhucon,

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what is the input to be given in digital flow meter during the the calibration time?

0 Answers   ONGC,

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Operational amplifiers

0 Answers   CCIE,

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Explain the combusion chamber

0 Answers   IFFCO,

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In field side transmitter voltage droping here no loose connection then what will happen?

2 Answers   Edac,

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What are three main programming in PLC

5 Answers  

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Why 4mA-20mA current loop selected as standard ???

1 Answers   IMCO, Reliance,

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(1) In turbine, what does term CDP, NI, NH, HSSOC, means. (2) What is the purpose of LO overhead tank in turbines.(3) An equipment is certified for EEX, IA, IIC,T6, what do you under stand by this.(4) what is SURGE, and how it is prevented, what is the purpose of bypass valve across AS valve.(5) Give 2 application of quartz crystal used for process parameter measurement.(6) what is meant by cold float of compressor shaft. (7) state four different types of flow measurement. For gas flow measurement mmscfd is the common unit. Expand the unit and specify significance of word S in the unit.(8) what is meant by Gap voltage, in vibration measurement. Normally how much Gap voltage is set and state the reason.(9) what will the new flow factor if D/P transmitter is Re-Ranged from 25” wc to 50” wc.(10) what is the usage of QDV & Volume booster.

0 Answers   ADMA OPCO,

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if I did short to both AO connections, channel will burn or what? m sure in AI it will damage to channel. But what will happens in AO?

1 Answers  

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