Process Control and Instrumentation The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is π/6 π/3 π/12 5π/12 π/6 π/3 π/12 5π/12 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Continuous measurement of moisture content of paper in paper industry is done by measuring the Magnetic susceptibility 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 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following can not measure a temperature of 1600°C ? Radiation pyrometer Photo-electric pyrometer Thermocouple Platinum resistance thermometer Radiation pyrometer Photo-electric pyrometer Thermocouple Platinum resistance thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For measuring the temperature of a red hot furnace, which is the most suitable instrument? Platinum resistance thermometer Thermocouple Optical pyrometer Bimetallic thermometer Platinum resistance thermometer Thermocouple Optical pyrometer Bimetallic thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the Laplace transform of sin t ? S/(s² - 1) 1/(s² - 1) S/(s² + 1) 1/(s² + 1) S/(s² - 1) 1/(s² - 1) S/(s² + 1) 1/(s² + 1) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the normal percentage of rhodium in platinum + rhodium element used in the thermocouple? 13 0.1 3 29 13 0.1 3 29 ANSWER DOWNLOAD EXAMIANS APP
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