Process Control and Instrumentation A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is 45° -180° -45° -90° 45° -180° -45° -90° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Volumetric expansion is the working principle of the __________ thermometers. Bimetallic Vapor pressure Constant volume gas Mercury in glass Bimetallic Vapor pressure Constant volume gas Mercury in glass ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an Chromel-alumel thermocouple Optical pyrometer Radiation pyrometer Either B or C Chromel-alumel thermocouple Optical pyrometer Radiation pyrometer Either B or C ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A mercury thermometer can not be used to measure the temperature below the freezing point of mercury, which is __________ °C. -80.9 -38.9 -11.9 -60.9 -80.9 -38.9 -11.9 -60.9 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal conductivity measurement com-prises the working principle of a Polarimeter Spectrometer Chromatograph CO₂ analyser Polarimeter Spectrometer Chromatograph CO₂ analyser ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The function of a transducer is to Amplify the input signal Convert the primary signal into a more useful quantity, usually an electric impulse Modify the input signal Codify/decodify the input signal Amplify the input signal Convert the primary signal into a more useful quantity, usually an electric impulse Modify the input signal Codify/decodify the input signal ANSWER DOWNLOAD EXAMIANS APP
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