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Process controls: FOURTH PERIOD

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

All feedforward control strategies respond to a disturbance before it reaches the CV. Which of the strategies below does not verify that the CV has returned to the desired value
There a some conventional distillation column control strategies. Which of the strategies below is best described as a direct setting of the columns thermal properties?
Gasoline is a complex hydrocarbon blend. Which of the blending ratios would use the flow rates flow rate controllers on each line to create the blend ratio?
Surge is the worst conditions that a centrifugal compressor can have, so some control strategies have been developed to mitigate this. Which of the strategies below can be described as a control that functions despite the surge controller not operating?
Electric switches and transmitters make up the bulk of the sensors in a safety system. Which type of sensor architecture below is best described as a two component fault indicating components that can initiate a shut down together?
Boiler feedwater treatment is a vital component for the smooth operation of an industrial boiler. Which of the conditioning methods below is comprised of filtration and softening before entering the boiler feedwater system
The control of the composition that is produced from a distillation column involves several variables. Which of the answers below best represents the major variable(s) that must be kept in balance?
There a some conventional distillation column control strategies. Which of the strategies below is best described as a one that does not control output flows from the column?
There a some conventional distillation column control strategies. Which of the strategies below is best described as a one that indirectly controls the heat input to the column?
Which of the control strategies below is best defined as a strategy where all inputs are evaluated and the calculated outputs are transmitted collectively?
There are many different parts and processes to a distillation column. Which of the design feature below can be best described as the generation of heat to the column?
Electric switches and transmitters make up the bulk of the sensors in a safety system. Which type of sensor architecture below is best described as a shutdown that can be initiated by two components together?
Which of the answers below is best represented by the number "3" on a typical H1 segment?
In the reciprocating compressor system, there are numerous specialized components. Which of the components below would be best described as one that isolates the compressor during emergency conditions?
On a typical boiler control system, there are four main points of control. Which of the answers below would best be manipulated to control the steam drum level?
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?
Which of the responses below is best described as although slower than ¼ amplitude decay, the response is stable and has no overshoot?
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?
Which of the answers below is best described as a relative gain that indicates no loop interaction?
Which of the systems below is best defined as being used when there is inherent interaction between loops
To minimize the loop interaction in a multi-loop control system, the CO and PV whose ______ pairing is closest to +1 is most desirable. Choose the best answer from those below to fill in the blank.
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?
Which of the terms below is best describes the measurement with the other control loop is in automatic, the disruption in the PV with a change in Co?
There a some conventional distillation column control strategies. Which of the strategies below is best described as a direct setting of one of the output flows?
The graph below is an example of a typical positive displacement compressor. Which of the numbered points would best be described as when the cylinder is full of gas at suction pressure?