A randomized 25 question test from a pool of 469 questions, good luck!
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?
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 several common problems that can arise during a distillation columns operation. Which of the problems below can be described as an accumulation of liquid that can block vapour from rising?
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?
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?
There are many different parts and processes to a distillation column. Which of the processes below can be best described as the residual liquid exiting the tray at each stage?
In the reciprocating compressor system, there are numerous specialized components. Which of the components below would be best described as one that acts as a downstream backflow preventer?
On a typical boiler control system, there are four main points of control. Which of the answers below would best be manipulated to control the matching of steam supply with the demand?
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?
There are many different parts and processes to a distillation column. Which of the design feature below can be best described as where the entrance of the main supply would be located?
SIS's use is based solely on the reduction of risk. Which of the terms below is best described as risk that is considered insignificant?
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 pressure of the furnace?
There are a variety of complications that can arise while using a reciprocating compressor. Which one of the events would be mitigated by a the proper positioning of proximity probes?
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.
There a some conventional distillation column control strategies. Which of the strategies below is best described as a one that indirectly controls the heat input to the column?
Which of the answers below is best described as a relative gain that indicates the control variable as no interaction with the manipulated variable?
Gasoline is a complex hydrocarbon blend. Which of the blending ratios would introduce a product to be mixed with the primary stream upstream of the first flow quantity controller?
Which answer below best describes the number "1"?
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?
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?
Control strategies affect several variables, some at the same time. Which of the variables below is omitted from the pure feedforward control strategy?
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 armed at the successful completion of the start sequence, and stay armed until it's timer expires?
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?
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?
SIS components are indicated on P&ID's, showing which devices are part of this system. Which of the letters below signifies is a variable modifier for a device is a part of the SIS?