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Process controls: FOURTH PERIOD

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

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?
In the arena of process control, there are some that deal with more than one FCE at a time. Which of the control strategies below would be best suited for processes that need 2 different manipulated variables to be used at the same time?
In the reciprocating compressor system, there are numerous specialized components. Which of the components below would be best described as one that safeguards against over pressurization?
There a some conventional distillation column control strategies. Which of the strategies below is an example of an material balance strategy?
In relation to open loop static gain calculations the "A" in the picture below is best described by which term below?
There are multiple parts to a large industrial water tube boiler. Which of the answers below is best described as a structure or apparatus in which heat is generated?
There are several ways to control the pressure in a distillation column. Which of the answers below is best described as a slow acting type of pressure control?
There a some conventional distillation column control strategies. Which of the strategies below is an example of an energy balance strategy?
The static gains of the _______ variable and ________ variable for each loop are contained in the OLM. Choose the best answer to fill in the two blanks from the ones below.
Which of the answers below best describes a advantage that does not belong to a automatic feedback controlled system?
A system of control is needed in a reciprocating compressor to have consistent pressure. Which of the control systems below is best described as the suction side of the compressor receiving discharge gas?
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?
Boiler safety is an important part of reliable operation. Which of the strategies below would concern itself with water carryover?
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?
Flaring gas preforms a vital safety role in refineries. Which of the control strategies is best suited for the flaring of gas?
Direct and indirect ratio control have an inherent problem that requires the addition of feedback trim. Which of the answers below best describes that issue?
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?
Which of the answers below is best defined as the systems reaction to applying an input to the control system, and the time to reach steady state?
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?
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?
There are numerous undertakings in developing an SIS, this is called the safety life cycle. Which of the terms below relates best to the SIL required to satisfy an RRF of 87
Which of the systems below is best defined as being used when there is inherent interaction between loops
In an industrial application, there are systems where two or more boilers supply a main header. Which of the terms below would best describe the main steam header pressure controller?
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 pressure of the furnace?
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?