Answer / muhammad ali

Datum line or point is a reference point for level
measurement.

Answer / ravi

Which point is we can take a refrance point for hight of
level .
Means our level is XXX mm from Datum line .
The bottum of measerd level tank is Datum line

Answer / elsayem

datum point is the rerence point when we measure level

Answer / imran

It is the refference point of any vessel from where zero
level start above bottom of vessel.For level measurement it
is zero level and head pressure is measured at this point.

what is stability

2 Answers   IOCL,

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ALL INSTRUMENTS WORKING PRINCIPLE.

3 Answers   Blanco, India Cements, TVS,

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why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .

0 Answers   Visa Steel,

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In instrumentation standard we use 4 to 20ma for transmission , why cant we use 3 to 19ma ?

1 Answers   NSH,

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WHAT IS DIFFERANCE BETWEEN INSTRUMENT AND EQUIPMENT

1 Answers   Lupin,

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CONTROL VALVE OPERATING IN MANUAL BUT NOT IN MANUAL. WHAT SHOULD BE THE PROBLEM ?

0 Answers   GSC,

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Decibel.

0 Answers   CCIE,

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How to find out the current of two motors having same power consumption but different RPM?

0 Answers  

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what is KV and XV valve

0 Answers  

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kindly tell where orifice,nozzle,air foil,ventury used in flow measurement?

1 Answers  

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Why we use 250 ohm resistor in series with HART protocol communication?

13 Answers   Chemtrols, Instec, Sabic,

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An atmospheric storage tank has a diameter of 20 m and a height of 8m.It is half-full of liquid with the remainder of the space containing air normally at atmospheric pressure. If the connection to atmosphere is accidentally closed off and 10 cubic m of liquid removed, what happens to the internal pressure of the tank? What are the possible consequences for the tank?

1 Answers  

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