A randomized 25 question test from a pool of 469 questions, good luck!
One of the more common applications for ratio control is fuel to air control schemes. Which of the control schemes below would use a firing demand controller whose signal would arrive at the air controller only?
Which answer below best represents the subscripts with the static gain symbol in the calculation of the OLM?
There are many different parts and processes to a distillation column. Which of the design feature below can be best described as the trays between the feed tray and the top of the column?
There are many different parts and processes to a distillation column. Which of the processes below can be best described as the design feature that removes some of the liquids lighter components at each stage?
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?
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?
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 a some conventional distillation column control strategies. Which of the strategies below is an example of an energy balance strategy?
In a typical distillation process, the top stage of the column will have a ratio of lighter components to heavier components. Which of the answers below reflects this ratio best?
Which of the terms below is best described as the output by the controller to manipulate the FCE?
Which one of the terms below is best described as a measure of the output of first order system reacting to a load disturbance?
Which of the answers below best describes a centralized control strategy?
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 does not control output flows from the column?
The breakdown of any one of the components of a SIF is hazardous. Which of the components below are the least prone to breakdown?
There are several common problems that can arise during a distillation columns operation. Which of the problems below can be described as when the vapour avoids the upper tray due to a lack of a seal in the downcomer from the tray above?
There are multiple parts to a large industrial water tube boiler. Which of the answers below is best described as the boiler manufacturers feedwater specifications are met?
In the distillation process there are two defined variables. Which of the variables below can be best described as the quality of the content that is exiting the column?
In process control, there are many control strategies to choose from. Which of the strategies would adjust the manipulated variable by the measured disturbance?
The direct ratio scheme calculates it's ratio using a flow relay. Which of the methods below does the flow relay use?
Boiler safety is an important part of reliable operation. Which of the strategies below would concern itself with maintaining proper furnace pressures?
Which of the terms below would be best described as a systems predefined value?
There are a variety of complications that can arise while using a reciprocating compressor. Which one of the events would be mitigated by a tight control of the water jacket and lube oil?
The pulp mills require feed stock consistency. Which of the control strategies below would be best suited for the quality control of the paper pulp dilution?
There are many factors in the proper working of a distillation column. Which of the answers below is one of those factors?