| Other Instrumentation Interview Questions |
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|What information needs for Control Valve "sizing"
|When cryogenic control valve will be applied?
|Are Coils of Electromagnetic flowmeter in direct contact
with fluid material
|Can we use thermocouple in generator of power station
replace RTD(pt 100)?
if we don't have any place for use RTD.
|1. Pl. send details about different types Gas Analyser,
like Co2, O2, SOX/NOX, etc. with calibration procedure.
2. How to calibrate H2S gas detector in field?
|how bolometer is used in temperature measurement ??
|defffrence between instruments and instrumentation
|in a power plant main steam flow is volumetric or mass flow?
is it required compensation?
|What is use of condensate pot
|How much voltage we get between two wire of 4 to 20 ma
output? Is this voltage up or down respectvice to 4 - 20
|How can we say that accuracy of measurement increases by using 3 or 4 wire RTD?
because for example:
If resistance of RTD element is say r ohms and
Resistance of the cable from transmitter to RTD is R ohms
And if 4 wire RTD is used,
____._____________________ R ohms
|_____._____________________ R ohms
/ r ohms
|______.__________________ R Ohms
|_______._________________ R ohms
Then the actual resistance measured will be:
Total = r + R/2 + R/2 = r +R Ohms
Note: r+R instead of r ohms. hence error
|Wht should be the ratio of natural frequency (Fn) to wake
frequency (Fw) and wht if goes above the rato limit?
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