Process Control and Instrumentation Which of the following thermocouples has the widest temperature measurement range? Iron-constantan Chromel-alumel Platinum-platinum/rhodium Copper-constantan Iron-constantan Chromel-alumel Platinum-platinum/rhodium Copper-constantan ANSWER DOWNLOAD EXAMIANS APP
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/12 5π/12 π/6 π/3 π/12 5π/12 π/6 π/3 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which is the most suitable instrument for measuring pressure below 3 microns? Alphatron Ionisation gauge Bourdon guage Mcleoid gauge Alphatron Ionisation gauge Bourdon guage Mcleoid gauge ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following relates the emf. generated in a single homogeneous wire to the temperature difference? Peltier effect None of these Thomson effect Seebeck effect Peltier effect None of these Thomson effect Seebeck effect ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which thermocouple can be used to measure a temperature of around 1400°C ? Copper-constantan Platinum-platinum+rhodium None of these Aluminium-chromel Copper-constantan Platinum-platinum+rhodium None of these Aluminium-chromel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a Vapor pressure thermometer Reistance thermometer Mercury in glass thermometer Thermocouple Vapor pressure thermometer Reistance thermometer Mercury in glass thermometer Thermocouple ANSWER DOWNLOAD EXAMIANS APP
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