| Other Instrumentation Interview Questions |
|| Asked @
|why we are using MARSHALLING PANEL? what is the role?
|Generally in which location ( JB or IO card or DCS) the
thermocouple compensation is done.Also where they measure
the atmosphere temp ( for compensation) in JB OR DCS panel?
How they compensating that atmosphere temp? is any circuit
for that ( like in rtd wheatstone bridge)?
|why thermocouple called thermocouple?
|what is differences between singal acting and double action
|What is the DIfferences between SMART transmitters and
PROFIBUS DP/PA Transmitters?
|a pressure transmitter with a range of 0 to 2500kpag has a specified accuracy of
0.5 % of span.It is to be calibrated using a comparison gauge to have an accuracy
of 0.1% of span.The comparison gauge has a range of 0 to 3000kpag
What is the accuracy ratio? is this ratio acceptable?
|why the discharge pressure of ID fan showing negative at fan
running condition.(boiler operating condition.)
|what is bms?
|The wire is disconnected from the fuel gauge sending unit
(bimetallic gauge). A voltmeter connected to the wire reads
a pulsating 5v. What does this indicate?
|Why Bently Nevada use negative voltage for vibration probes?
|WHAT IS ANNUBAR?
|How a oxygen sensor & analyzer work at boiler or furnace,
whatâ€™s the principle & science is beyond this, How O2
sensor scene & convert signal & move toward analyzer &
analyzer show reading in percent?
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