A randomized 25 question test from a pool of 469 questions, good luck!
Which of the answers below is best described as a relative gain that indicates no loop interaction?
Which of the control systems below is designed to uses the static gain of the transfer functions only?
Feedforward control strategies are developed from different sources. Which of the strategies below is derived equations that involve energy or mass balance equations?
There are multiple parts to a large industrial water tube boiler. Which of the answers below is best described as a tube not directly heated, that allows thermal movement of water to the steam drum?
There are multiple parts to a large industrial water tube boiler. Which of the answers below is best described as an exchanger that allows flue gases to heat up air for combustion?
In the distillation process there are two defined variables. Which of the variables below can be best described as the quantity of feed that is removed from the process as distillate or heavies?
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?
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?
Which of the systems below is best defined as being used when there is inherent interaction between loops
There are multiple parts to a large industrial water tube boiler. Which of the answers below is best described as a Provides air for combustion from outside the boiler?
There are many factors in the proper working of a distillation column. Which of the answers below is one of those factors?
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?
Which of the answers below best represents the controller gain if the PB is 65%?
The techniques employed in process systems, that have the controlled value as close to the desired value are called control strategies. Which of the strategies below is designed to counter disturbances before they can affect the controlled variable?
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 design feature below can be best described as the piece of equipment that liquefies the tops product?
A calculated value, derived from the mathematical model of the process, of the manipulated variable is applied to the feedback controller ouput signal to the FCE. Which of the answers below would use this type of strategies?
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 indirect ratio scheme is chosen more than the direct ratio scheme for ratio control. Which of the answers below would be considered a major reason for that?
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?
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.
Starting a boiler is an extremely complicated procedure. Which of the start-up steps would include excess fuel being expelled from the furnace?
There a some conventional distillation column control strategies. Which of the strategies below is an example of an material balance strategy?
There are some specialized equipment that is on a fractional distillation column. Which of the answers below best describes what the function of a "pump around" on one of those columns?
Which answer below best represents the subscripts with the static gain symbol in the calculation of the OLM?