Process Control and Instrumentation Which of the following thermocouples is capable of measuring a temperature of -50°C? Copper - constantan Chromel - alumel Platinum - platinum + rhodium Iron-constantan Copper - constantan Chromel - alumel Platinum - platinum + rhodium Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following controllers has maximum offset? P-controller P-I-D controller P-I controller P-D controller P-controller P-I-D controller P-I controller P-D controller ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples has the widest temperature measurement range? Chromel-alumel Iron-constantan Platinum-platinum/rhodium Copper-constantan Chromel-alumel Iron-constantan Platinum-platinum/rhodium Copper-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Temperature control of an exothermic chemical reaction taking place in a CSTR is done with the help of cooling water flowing in a jacket around the reactor. The types of valve and controller action to be recommended are Air to open valve with the controller indirect acting Air to close valve with the controller indirect acting Air to open valve with the controller direct acting Air to close valve with the controller direct acting Air to open valve with the controller indirect acting Air to close valve with the controller indirect acting Air to open valve with the controller direct acting Air to close valve with the controller direct acting ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In second order underdamped system, Decay ratio = (overshoot)² Overshoot increases for increasing damping co-efficient Large damping co-efficient means smaller damping Decay ratio = overshoot Decay ratio = (overshoot)² Overshoot increases for increasing damping co-efficient Large damping co-efficient means smaller damping Decay ratio = overshoot ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The term analogous to the electrical current in a thermal system is the Heat content in the system Temperature difference None of these Heat flow rate Heat content in the system Temperature difference None of these Heat flow rate ANSWER DOWNLOAD EXAMIANS APP
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