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Process controls: FOURTH PERIOD

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

On a typical boiler control system, there are four main points of control. Which of the answers below would best be manipulated to control the steam drum level?
Which of the responses below is best described as although slower than ΒΌ amplitude decay, the response is stable and has no overshoot?
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?
There are several ways to control the pressure in a distillation column. Which of the answers below is best described as a fast acting type of pressure control?
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.
On a typical boiler control system, there are four main points of control. Which of the answers below would best be manipulated to control boiler furnace pressure?
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?
Boiler safety is an important part of reliable operation. Which of the strategies below would use premissives and interlocks to prevent explosions?
Which of the answers below is best represented by the number "4" on a typical H1 segment?
Whic of the responses below can be best described as extremely stable, with no overshoot, but slower than critically damped response?
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 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?
Which of the answers below is best represented by the number "3" on a typical H1 segment?
Starting a boiler is an extremely complicated procedure. Which of the start-up steps would include the pressure in the burner valve system must be within acceptable limits?
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?
Responses from feedforward controls have different times. Which of the answers below is not a timed response?
In industry, distillation columns have grown to encompass the needs that are required. Which of the columns below would best be described as one that removes distillate form multiple points on the column?
Centrifugal compressors have some specialized problems while operating. Which of the terms below is best described as the operation at a high flow rate but low discharge rate?
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?
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 the proper air-to-fuel ratios for varying boiler demands?
Responses from feedforward controls have different times. Which of the answers below is a timed response?
In the reciprocating compressor system, there are numerous specialized components. Which of the components below would be best described as one that isolates the compressor during emergency conditions?
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?
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?
In the protocol specifications of Modbus, there are only four types of registers that can be accessed by the master. Which of the answers below expresses the register size and permissions of a coil?