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Process controls: FOURTH PERIOD

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

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 the measurement of differential pressures in the compressor, head and inlet flow pressure determines if action is required?
The graph below is an example of a typical positive displacement compressor. Which of the numbered points would best be described as the end of the discharge stroke?
Which of the answers below best represents the controller gain if the PB is 65%?
Which of the control systems below is designed to uses the static gain of the transfer functions only?
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?
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?
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 87345?
All feedforward control strategies respond to a disturbance before it reaches the CV. Which of the strategies below does not verify that the CV has returned to the desired value
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.
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?
There are numerous undertakings in developing an SIS, this is called the safety life cycle. Which of the terms below relates best to the internal capacity to function properly with a small amount of faults?
A system of control is needed in a centrifugal compressor to have consistent flow. Which of the constant speed compressor control systems below is best described as a restriction on the inlet flow, reducing the discharge flow?
There a some conventional distillation column control strategies. Which of the strategies below is an example of an energy balance strategy?
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?
In the arena of process control, there are some that deal with more than one FCE at a time. Which of the control strategies below would be best suited for processes that need 2 different manipulated variables to be used at the same time?
Which of the answers below is best described as a relative gain that indicates the control variable as no interaction with the manipulated variable?
Responses from feedforward controls have different times. Which of the answers below is a timed response?
There are a variety of complications that can arise while using a reciprocating compressor. Which one of the events would be mitigated by a gauge on the suction and discharge lines?
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?
The direct ratio scheme calculates it's ratio using a flow relay. Which of the methods below does the flow relay use?
Boiler feedwater treatment is a vital component for the smooth operation of an industrial boiler. Which of the conditioning methods below is comprised of altering the chemical make up of the feedwater?
Compressors are split into general categories by how they produce downstream pressure. Which of the answers below would a double-acting piston pump be classified as?
Which answer below best describes the number "5"?
In process control, there are many control strategies to choose from. Which of the strategies would adjust the manipulated variable by the measured disturbance?
Compressors are split into general categories by how they produce downstream pressure. Which of the answers below would a double-acting piston pump be classified as?