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Process controls: FOURTH PERIOD

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

A Split range control system divides the total span of the controllers output. If FCE "A" was set to 0%-50% of the CO, and FCE "B" was set from 50%-100%of CO output, what would be the total percent of stroke used for each valve at 34% CO output signal?
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 control strategies below is best defined as a strategy where all inputs are evaluated and the calculated outputs are transmitted collectively?
In the reciprocating compressor system, there are numerous specialized components. Which of the components below would be best described as one that releases pressure after the compressor shuts down?
Gasoline is a complex hydrocarbon blend. Which of the rigid specifications below determines the grade of gasoline?
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 liquefies the tops product?
Which of the answers below best represents the controller gain if the PB is 65%?
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?
Boiler safety is an important part of reliable operation. Which of the strategies below would concern itself with maintaining proper furnace pressures?
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 a chemical treatment coinciding with regular blowdowns, keeping the TDS near 0.03 ppm?
As with any mechanical or electrical system there are failures. Which of the answers below best describes when the SIF is not operating or responding to signals?
Which of the answers below best describes a decoupling control strategy?
There are multiple parts to a large industrial water tube boiler. Which of the answers below is best described as the area where boiler water is equalized, and scale is deposited?
Responses from feedforward controls have different times. Which of the answers below is not a timed response?
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?
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?
Control strategies affect several variables, some at the same time. Which of the variables below is omitted from the pure feedforward control strategy?
In the reciprocating compressor system, there are numerous specialized components. Which of the components below would be best described as one that increases efficiency by preventing over heating between stages?
Boiler safety is an important part of reliable operation. Which of the strategies below would use premissives and interlocks to prevent explosions?
Which answer below best describes the number "3"?
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?
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 873?
There are multiple parts to a large industrial water tube boiler. Which of the answers below is best described as the capture and reuse of used steam?
In a saturation process that uses static decoupling, what is the value of D₁ and D₂ if K₁₁= 14%, K₁₂=-15%, K₂₁=23% and K₂₂=12%
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?