Process Control and Instrumentation An emf of the order of mV is generated when two solutions of different hydrogen ion concentration are separated by a thin glass wall. This is the working principle of a Chromatograph Polarograph Polarimeter PH meter Chromatograph Polarograph Polarimeter PH meter ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Working principle of radiation pyrometer is based on the Wien's law Stafan-Boltzman law Kirchoffs law Seebeck effect Wien's law Stafan-Boltzman law Kirchoffs law Seebeck effect ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Continuous measurement of moisture content of paper in paper industry is done by measuring the Thermal conductivity through the paper None of these Electrical resistance through the paper Magnetic susceptibility Thermal conductivity through the paper None of these Electrical resistance through the paper Magnetic susceptibility ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The open loop transfer function of a control system is KR/(1 + TS) . This represents A first order time lag A second order system A first order system Dead time system A first order time lag A second order system A first order system Dead time system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Positioning controllers are used for High loads Low loads Temperature changes Flow rate changes High loads Low loads Temperature changes Flow rate changes ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal wells are used in the temperature measurement to Increase the sensitivity Increase the fidelity Guard against corrosive and oxidising action on thermocouple materials Reduce measuring lag Increase the sensitivity Increase the fidelity Guard against corrosive and oxidising action on thermocouple materials Reduce measuring lag ANSWER DOWNLOAD EXAMIANS APP
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