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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 area where the heat produced by combustion is transferred to saturated steam?
There a some conventional distillation column control strategies. Which of the strategies below is an example of an material balance 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 water level in the steam drum?
The graph below is an example of a typical positive displacement compressor. Which of the numbered points would best be described as when the differential pressure opens the suction valves to intake more gas?
Gasoline is a complex hydrocarbon blend. Which of the rigid specifications below determines the grade of gasoline?
The efficiency of a distillation column has a direct link to pressure control. Which of the answers below is a strategy for total condenser pressure control?
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?
There are many different parts and processes to a distillation column. Which of the design feature below can be best described as the section that concentrates the heavier component in the liquid phase.
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 rate of combustion?
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?
There are two types of Ethernet connector cables. Which type of connector cable is pictured below?
Full range duplex control of a heating control uses two or more FCEs. If a system uses a FO valve and a FC valve, what are the valves positions at 34% of the controller signal?
Which of the answers below best describes a decoupling control strategy?
There are many different parts and processes to a distillation column. Which of the design feature below can be best described as the section that concentrates the heavier component in the liquid phase.
There a some conventional distillation column control strategies. Which of the strategies below is best described as a direct setting of the columns thermal properties?
In process control, there are many control strategies to choose from. Which of the strategies would adjust the manipulated variable by the measured disturbance?
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?
A system of control is needed in a centrifugal compressor to have consistent flow. Which of the variable speed compressor control systems below is best described as a cascade system from the discharge, through a controller, to the motor?
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 the pH of a boiler system being maintained at 10.5-11.5?
Baseband NRZ signalling is the standard for all physical connections with Ethernet. Which of the signalling methods below has the advantage of an embedded clock signal?
Boiler safety is an important part of reliable operation. Which of the strategies below would use premissives and interlocks to prevent explosions?
When tuning with out decoupling, the _______ step is to tune the faster loops, the _______ step is to tune the most important loop. Choose the answer below that best fills in both blanks.
Responses from feedforward controls have different times. Which of the answers below is a timed response?
Which of the terms below is best described as the relationship of the system's output to its input?
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?