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Process controls: FOURTH PERIOD

A randomized 25 question test from a pool of 469 questions, good luck!

Which of the answers below represents the phase shift of a processes natural frequency?
Which of the control strategies below is best defined as a strategy where all inputs are evaluated and the calculated outputs are transmitted collectively?
Which of the terms below best describes the switching of a loop from manual to automatic, resulting in a change in the control loop static gain?
Cross limited control provides a safety control in regards to combustion for air to fuel disturbances. Which of the answers below best describes the operation of this type of control?
Operating a distillation column is an excersize in fine tuning a process. Which of the answers below would cause a problem in the operation of a column?
There are numerous undertakings in developing an SIS, this is called the safety life cycle. Which of the terms below relates best to the intermittent testing to verify operation of SIS devices?
The breakdown of any one of the components of a SIF is hazardous. Which of the components below are the most prone to breakdown?
In a saturation process that uses static decoupling, what is the value of D₁ and D₂ if K₁₁= 14%, K₁₂=-15%, K₂₁=23% and K₂₂=12%
Which of the answers below is best described as having built-in feedback characteristics that cause the process to tend towards equilibrium.
There are many different parts and processes to a distillation column. Which of the design feature below can be best described as where the entrance of the main supply would be located?
Because steam demands can vary, there are several control methods that work in concert to ensure efficient boiler operation. Which of those strategies would be to control the water level in the steam drum?
There are multiple parts to a large industrial water tube boiler. Which of the answers below is best described as the capture and reuse of used steam?
In process control, there are many control strategies to choose from. Which of the strategies would use the comparison of the PV to the desired SP?
Even a peak operating boiler must be protected from various issues that effect it's performance. Which of the terms below would be best be prevented by a chemical treatment coinciding with regular blowdowns, keeping the TDS near 0.03 ppm?
Which of the answers below best represents the maximum number of devices that can be connected to an intrinsicly safe H1 multidrop bus network?
A system of control is needed in a centrifugal compressor to have consistent flow. Which of the constant speed compressor control systems below is best described as a restriction on the inlet flow, reducing the discharge flow?
There are multiple parts to a large industrial water tube boiler. Which of the answers below is best described as a tube not directly heated, that allows thermal movement of water to the steam drum?
In the reciprocating compressor system, there are numerous specialized components. Which of the components below would be best described as one that releases pressure after the compressor shuts down?
Which of the answers below best describes the "A" portion of the reaction curve?
In relation to open loop static gain calculations the "B" in the picture below is best described by which term below?
Which of the answers below is best described as a device that has consistent static gain over it's operational range?
In process control, there are many control strategies to choose from. Which of the strategies would only respond to a controlled PV starting to drift from the SP?
Calculate the static gain of a process that has a step change of 15% in CO₁, creating a 20% change in PV₁ and a 12% change in PV₂ while CO₂ is held constant. A step change of 12% in CO₂ creates a -15% change in PV₁ and a 7% change in PV₂?
There are multiple parts to a large industrial water tube boiler. Which of the answers below is best described as the capture and reuse of used steam?
There are numerous undertakings in developing an SIS, this is called the safety life cycle. Which of the terms below relates best to identifying the potential for harm to people, environment, and property?