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Process controls: FOURTH PERIOD

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

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?
There are numerous undertakings in developing an SIS, this is called the safety life cycle. Which of the terms below relates best to providing the risk reduction requirement for a SIF?
There are many different parts and processes to a distillation column. Which of the design feature below can be best described as the part of the column that contains the greatest portion of heavier components of the mixture?
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?
Which of the answers below best describes a advantage that does not belong to a automatic feedback controlled system?
Which of the terms below is best described as the delay from when a controller output (CO) load disturbance is issued until when the measured process variable begins to respond.
There are several standards that Ethernet/IP uses. Which of the standards below specifies the physical and data link layers that are used by Ethernet/IP?
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?
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?
In a reciprocating compressor, the piston rod is put under extreme forces and requires monitoring. Which of the situations below would use mounted strain gauges?
Which of the answers below is best defined as affecting the controlled variable through changes in the process?
Which of the control systems below is designed to uses the static gain and dynamic portions of the transfer functions?
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 a reciprocating compressor, the piston rod is put under extreme forces and requires monitoring. Which of the situations below would a pneumatic eutectic sensor be used?
Gasoline is a complex hydrocarbon blend. Which of the blending ratios would use a pace controller to set the RSP for all of the lines being blended?
Process control strategies are always trying to eliminate the effects of a load disturbance. Which of the answers below would use an automatic adjustment of a controlled flow in response to a flow disturbance in the supply stream?
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?
Operating a distillation column is an excersize in fine tuning a process. Which of the answers below would cause a problem in the operation of a column?
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?
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?
Boiler feedwater treatment is a vital component for the smooth operation of an industrial boiler. Which of the conditioning methods below is comprised of filtration and softening before entering the boiler feedwater system
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?
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 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?
There are several common problems that can arise during a distillation columns operation. Which of the problems below can be described as a lack of vapour speed to keep the liquid on the proper tray?