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Process controls: FOURTH PERIOD

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

There are multiple parts to a large industrial water tube boiler. Which of the answers below is best described as an emitted material produced with the combustion of fossil fuels?
Calculate the RGM of a process with the following static gains: K₁₁=1.33, K₁₂=-1.25, K₂₁=0.8, K₂₂=0.58.Ꙡ₂₂Ꙡ₁₁Ꙡ₁₂Ꙡ₂₁
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?
SAMA has various symbols for the elements or functions of a boiler. Which of the answers below correctly identifies "C"?
A system of control is needed in a reciprocating compressor to have consistent pressure. Which of the control systems below is best described as one that adjust the compression rate of the compressor?
Which of the answers below best describes the "A" portion of the reaction curve?
The techniques employed in process systems, that have the controlled value as close to the desired value are called control strategies. Which of the strategies below is designed to counter disturbances before they can affect the controlled variable?
The applications for process control are varied. Which of the control strategies below would be best in waste effluent neutralization?
The direct ratio scheme calculates it's ratio using a flow relay. Which of the methods below does the flow relay use?
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 controller that can be used in auto or manual to set firing rates?
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?
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?
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?
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?
If an unusual condition appears, compressor control systems have instruments that will shut down the compressor safely. Which of the shutdown classes below is best described as monitoring only those conditions that apply to start-up?
The relative amount of heat lost in the column is reflected in the reflux ratio. If the ratio were to increase, which of the answers below would describe the effect on the light key in the distillate?
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 having sodium carbonates substituted with sodium sulfates as a softening agent?
There are many different parts and processes to a distillation column. Which of the design feature below can be best described as the part of the column that contains the greatest portion of heavier components of the mixture?
Each compressor have it's own pressure to flow profile at a defined speed. Which of the compressors below would have an inconsistent flow and predictable pressure?
Which of the answers below best describes a decoupling control strategy?
Which answer below best describes the number "8"?
In relation to open loop static gain calculations the "B" in the picture below is best described by which term below?
A measured disturbance by a transmitter, whose output signal modifies the feedforward controller output signal to the FCE is used by which of the control strategies below?
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 are many different parts and processes to a distillation column. Which of the design feature below can be best described as the piece of equipment that is used for distillate storage?