A randomized 25 question test from a pool of 469 questions, good luck!
The control of the composition that is produced from a distillation column involves several variables. Which of the answers below best represents the major variable(s) that must be kept in balance?
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 pressure reduction from a change in the angle of the gases path across the impeller?
Which of the answers below best describes a centralized control strategy?
This additional control scheme can be added to a parallel metering cross-limited control system. Which of the answers best describes this extra control system that has all signals in percentages?
Which answer below best represents the subscripts with the static gain symbol in the calculation of the OLM?
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?
In the reciprocating compressor system, there are numerous specialized components. Which of the components below would be best described as one that increases efficiency by preventing over heating between stages?
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 of the answers below best describes a advantage that does not belong to a automatic feedback controlled system?
A measured disturbance by a transmitter, whose output signal modifies the feedforward controller output signal to the FCE is used by which of the control strategies below?
In process control, there are many control strategies to choose from. Which of the strategies would use the comparison of the PV to the desired SP?
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??
Which of the terms below best describes the switching of a loop from manual to automatic, resulting in a change in the control loop static gain?
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?
One of the more common applications for ratio control is fuel to air control schemes. Which of the control schemes below would use a firing demand controller whose signal would arrive at the air controller only?
Which of the terms below is best described as predictive to any system response to an input?
Which of the systems below is best defined as being used when there is inherent interaction between loops
Starting a boiler is an extremely complicated procedure. Which of the start-up steps would include lighting of the pilot when the electronic ignitor is activated?
There are many different parts and processes to a distillation column. Which of the parts below can be best described as the design feature that allows the maximum interchange between vapour and liquid?
In regard to the distillation process, Which of the terms below is best described as the The liquid and/or gas entering into the distillation column?
There are multiple parts to a large industrial water tube boiler. Which of the answers below is best described as a fan that pulls and drives flue gases up the stack?
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 conditions that are always monitored and alarms are armed?
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?
Which answer below best describes the number "9"?
In an industrial application, there are systems where two or more boilers supply a main header. Which of the terms below would best describe the controller that can be used in auto or manual to set firing rates?