Answer / aftab ahmed mazari

There are mostly two types of magnetic pickups for speed
measuring.
1. Passive sensor
2. Actice sensor
In active sensor, hall effect is used to get frequency
signal.

Answer / mithilesh kumar

in power plant it's used for turbine speed(RPM).

(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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what is cascade loop and how it work and why it used instead of PID single loop? In cascade, Which loop is faster and slower? Please explain with loop drawing and example...

2 Answers   Honeywell,

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what is the difference between servo valve & proportional valve

1 Answers  

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what is actual difference between pressure Transducer & Pressure Transmitter.

5 Answers  

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What is fault tolerent system

2 Answers   GNFC,

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How a pH sensor & analyzer work at waste water treatment plant, whats the principle & science is beyond this,How pH sensor sence & convert signal & move toward analyzer & analyzer show reading in percent? also what is temperature compensate option in analyzer

1 Answers  

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What is Cavitation in a control valve?

0 Answers   CCIE, KN,

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Describe a time when you anticipated potential problems and developed preventive measures.

0 Answers   Hotel Management,

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how can check the loopchecking for valves?

3 Answers  

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What is meant by calibration

5 Answers  

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any questions on motor and energy conversions machines?

0 Answers   ABB,

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Exothermic reaction./ endothermic reaction

0 Answers   CCIE,

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