| Other Instrumentation Interview Questions |
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|units of pressure,flow, level,temperature?
principle of pressure gauge?
calibration of pressure tx., level tx., temperature tx.flow
description of two wire ,three wire and four wire R.T.D.?
WHAT IS INPUT AND OUTPUT OF TX.?
WHAT IS INPUT AND OUTPUT OF R.T.D. AND THERMOCOUPLE?
WHAT IS HOT LOOP AND COLD LOOP?
WHAT IS INPUT AND OUT PUT AND OUTPUT OF D.C.S. AND P.L.C.?
PRINCIPLE AND WORKING OF HART?
WHAT IS PNP AND NPN PROXY?
CALIBRATION OF PRESSURE ,LEVEL ,FLOW SWITCH?
DESCRIPTION OF FIELDBUS FOUNDATION?
WORKING OF SOV.?
|WHY WE NOT USE 2-20mA,1-20mA,3-20mA or 10-50mA SIGNAL?
INSTEAD OF 4-20mA.
|Induction type 1-p wattmeter reads …..
a) true value b) apparent value c)volt ampere value
|what is upstream and downstream in liquid flow?
|Hi friends, from Aug 4th onwards iam getting spikes for
analog inputs in our DCS for a period of 800ms. I throughly
checked every thing, finally i found that the DI, DO's from
MCC panels shields are terminated in the Signal Earth where
Analog Input signals shields are terminated. Is there any
problem with this type of termination?. i checked the
induction voltage from MCC and getting around 25VAC, please
suggest me in this concern. Our plant is 8months old only.
DCS is Siemens Make Simatic PCS7, and the transmitters are
|Reasons for using current as signal
|What is difference between reset and initialization in
|Can someone give a detailed chart on the temperature ranges
which can be measured by various temperature sensors.
|What is the difference between Pressure Safety Valve and
Pressure Relieve Valve, in what condition we prefer choose
Pressure Safety Valve rather than Pressure Relieve Valve?
and vice versa
|Determine the manipulated variable, controlled variable,
and the measured variable given a description of various
typical industrial processes.
|d/p flow transmitter LP side give to pressure.what you
geting out put ? how you get(ma)?
|why used three wire in RTD.
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