Process Control and Instrumentation Which of the following controllers has maximum offset? P-controller P-I-D controller P-D controller P-I controller P-controller P-I-D controller P-D controller P-I controller 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 Radiation pyrometer Optical pyrometer Either B or C Chromel-alumel thermocouple Radiation pyrometer Optical pyrometer Either B or C ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a single tank system, the transfer function of level to inlet flow rate is 1/TS R/(TS + 1) R/TS L(TS + l) 1/TS R/(TS + 1) R/TS L(TS + l) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by Introducing integral control Introducing derivative control Reducing value of Kc None of these Introducing integral control Introducing derivative control Reducing value of Kc None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A typical example of a physical system with under damped characteristic is a U-tube manometer Spring loaded diaphragm valve CSTR with first order reaction Thermocouple kept immersed in a liquid filled thermowell U-tube manometer Spring loaded diaphragm valve CSTR with first order reaction Thermocouple kept immersed in a liquid filled thermowell ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The transfer function of a process is 1/(16s² + 8s + 4). If a step change is introduced into the system, then the response will be Over damped Under damped None of these Critically damped Over damped Under damped None of these Critically damped ANSWER DOWNLOAD EXAMIANS APP
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