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

Unstable response
Underdamped response
Overdamped response
Undamped response

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Process Control and Instrumentation
A magnetic flowmeter is

Based on the principle of Faraday's law
All of these
Based on the linear relationship between the fluid flow rate and the induced voltage
Capable of measuring the flow rate of slurries and electrolytes

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Process Control and Instrumentation
Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the

Enhancement or attentuation of redia-tion occurs in the sighting path
Object is transparent
Object and surrounding are at almost the same temperature
Object has varying emissivity

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