A randomized 25 question test from a pool of 469 questions, good luck!
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.
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?
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 the measurement of differential pressures in the compressor, head and inlet flow pressure determines if action is required?
The RGM needs to be developed to find the ______ of the loop interactions. Choose the best answer below to fill in the blank.
Which of the answers below is best described as a relative gain that indicates the control variable as no interaction with the manipulated variable?
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 terms below is best described as the discrepancy between the PV and the SP?
Process control strategies are always trying to eliminate the effects of a load disturbance. Which of the answers below would use an automatic adjustment of a controlled flow in response to a flow disturbance in the supply stream?
In the reciprocating compressor system, there are numerous specialized components. Which of the components below would be best described as one that diminishes the oscillations of a compressor to acceptable tolerances?
One of the more common applications for ratio control is fuel to air control schemes. Which of the control schemes below would use a a signal arriving at both the air and fuel controllers from the firing demand controller?
There are several common problems that can arise during a distillation columns operation. Which of the problems below can be described as an accumulation of liquid that can block vapour from rising?
There are numerous undertakings in developing an SIS, this is called the safety life cycle. Which of the terms below relates best to the qualitative measuring the possibility or seriousness of a hazard?
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?
In regard to the distillation process, Which of the terms below is best described as the The liquid and/or gas entering into the distillation column?
Centrifugal compressors have some specialized problems while operating. Which of the terms below is best described as the flow of gas moving to the impeller from the discharge line due to differential pressure?
Which of the terms below is best described as the controlled value setting that is desired?
In the reciprocating compressor system, there are numerous specialized components. Which of the components below would be best described as one that increases the pressure in the compressor for start-up?
Gasoline is a complex hydrocarbon blend. Which of the blending ratios would use a pace controller to set the RSP for all of the lines being blended?
A calculated value, derived from the mathematical model of the process, of the manipulated variable is applied to the feedback controller ouput signal to the FCE. Which of the answers below would use this type of strategies?
There are several ways to control the pressure in a distillation column. Which of the answers below is would be the best type of pressure control for a typical distillation column?
In the reciprocating compressor system, there are numerous specialized components. Which of the components below would be best described as one that improves the efficiency and range of operation?
Which of the answers below best describes a centralized control strategy?
Which of the answers below best represents a tuning consideration that is not required for ideal loop response?
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?
Which of the control strategies below is best defined as a strategy where all inputs are evaluated and the calculated outputs are transmitted collectively?