Answer / rajesh

Liquid with more boiling and freezing point in closed tank we need to select wet leg calibration.

Normal liquid for exp water in open tank we need to select dry leg calibration.

what is the difference between plant earth and instrument earth? and what type of cable( cable size ) used for both? and why ?

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What is the constant voltage unit?

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can we connect instrument earth pit to electrical earth pit, if not why?

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Hi Friends , i need one urgent help , i am preparing for M.tech entrance examination , i need some obejective questions related to instrumentation field. where can i get those ? can anyone help me pls ?

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For what reason would you possibly be compelled to make use of a Smith Predictor. Explain the idea behind the operation of this device.

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cheapest instru-- PMMC, EDM, rectifier, thermocouple.

3 Answers   ONGC,

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What is the difference between a Extension cable and a copnesating cable.Where can we use compensating cable. Is anywhere compensating cable are used for mv transmission to the indicator.

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Which type of pressure can be measured by primary elements?

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why pneumatic control signal output is use 0.2 to 1 kg/cm2

3 Answers   Jindal,

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sir i m preparing for BARC but i am not getting any papers to prepare for this exam so please send me some sample papers to my i.d for the preparation of barc.

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Why 4-20mA SIGNAL IS PREFERRED OVEA A 0-10v signal?

5 Answers  

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What is the differences of Level swich( LS ) and Level Transmitter(LT)

2 Answers   Hi Spectra, Sipra,

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