A randomized 25 question test from a pool of 469 questions, good luck!
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?
The breakdown of any one of the components of a SIF is hazardous. Which of the components below are the least prone to breakdown?
SAMA has various symbols for the elements or functions of a boiler. Which of the answers below correctly identifies "A"?
One of the more common applications for ratio control is fuel to air control schemes. Which of the control schemes below would use a a signal arriving at both the air and fuel controllers from the firing demand controller, while allowing for excess air for combustion??
In a SIS, the collection of redundant components must be connected in a specific way. Which of the terms below is used to describe this arrangement?
There a some conventional distillation column control strategies. Which of the strategies below is an example of an material balance strategy?
with dynamic feedforward compensation, if the disturbance dead time is _____ than the process dead time, the dead time parameter is ______. Use the answers below to choose the one that fills in both blanks best.
Electric switches and transmitters make up the bulk of the sensors in a safety system. Which type of sensor architecture below is best described as shutdown that can be initiated by two out of a total of three components?
Which of the answers below best represents the controller gain and action on a P-only controller, if the PV increases 10% and the CO drops 15%?
There are numerous undertakings in developing an SIS, this is called the safety life cycle. Which of the terms below relates best to the qualitative measuring the possibility or seriousness of a hazard?
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 volume of boiler feedwater sprayed in to the steam?
Responses from feedforward controls have different times. Which of the answers below is not a timed response?
There are several ways to control the pressure in a distillation column. Which of the answers below is would be the best type of pressure control for a typical distillation column?
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 having sodium carbonates substituted with sodium sulfates as a softening agent?
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?
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?
Which of the control terms below is best described as multiple controlled variables are affected by a single manipulated variable?
Which of the answers below best represents the HART protocol specification for characteristic impedance in the cabling used?
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?
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?
Gasoline is a complex hydrocarbon blend. Which of the rigid specifications below determines the volatility of gasoline?
The pulp mills require feed stock consistency. Which of the control strategies below would be best suited for the quality control of the paper pulp dilution?
Which of the terms below is best describes when the other control loop is in manual, the disruption in the PV with a change in Co?
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 a chemical treatment coinciding with regular blowdowns, keeping the TDS near 0.03 ppm?
Starting a boiler is an extremely complicated procedure. Which of the start-up steps would include the pressure for the igniter system being acceptable limits?