Answer Posted / naveed iqbal

actually in proximaty probes inside used PNP tanasistor.so
transistor baising supply need - dc voltage.

What is surge and how is it prevented, what is the purpose of bypass valve across AS valve.

1915

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How ejector(or)evactor air pump is working in thermal power plant?

6621

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What is zero elevation and zero suppression?

2180

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What are the application of bernoulli’s theorem?

1153

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if my flow is 20000 m3/h than which range of DPT i have to use????

1837

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Speedtronic system .

1980

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my data card only does run in my mobile so how can change it that it run other mobile & computer and i can stor data in my data card

2285

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WHAT IS TMXT IN TEMPERATURE FOUNDATION FIELDBUS.

2324

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where cascade loop use ?

1721

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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.

4046

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WHAT IS THE CAM POSITION IN CONTROL VALVE POSITIONER ? WHY IT IS USED?

997

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what is metal of piston ring

1931

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what are procedure of sox-nox calibration

2977

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How to calibrate Field bus transmitter? procedure ?

2349

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How oil line flow measured?eplain about instruments used and working principle?

2063

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