Process Control and Instrumentation Which of the following controllers has maximum offset? P-I controller P-I-D controller P-controller P-D controller P-I controller P-I-D controller P-controller P-D controller 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 close valve with the controller direct acting Air to open valve with the controller indirect acting Air to open valve with the controller direct acting Air to close valve with the controller indirect acting Air to close valve with the controller direct acting Air to open valve with the controller indirect acting Air to open valve with the controller direct acting Air to close valve with the controller indirect acting ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A magnetic flowmeter is All of these Capable of measuring the flow rate of slurries and electrolytes Based on the linear relationship between the fluid flow rate and the induced voltage Based on the principle of Faraday's law All of these Capable of measuring the flow rate of slurries and electrolytes Based on the linear relationship between the fluid flow rate and the induced voltage Based on the principle of Faraday's law ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the Laplace transform of impulse input having magnitude 'X' ? X 1/X 1 X² X 1/X 1 X² ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation __________ is undesirable in thermocouples used in industries, Oxidation resistance Linear relation of emf to temperature Corrosion resistance Non-linear relation of emf to temperature Oxidation resistance Linear relation of emf to temperature Corrosion resistance Non-linear relation of emf to temperature ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a closed loop system, the process to be controlled is an integrating process with transfer function l/2s. The controller proposed to be used in an integral controller with transfer function 1/T₁s. When a step change in set point is applied to such a closed loop system, the controlled variable will exhibit Underdamped response Unstable response Undamped response Overdamped response Underdamped response Unstable response Undamped response Overdamped response ANSWER DOWNLOAD EXAMIANS APP
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