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Process controls: FOURTH PERIOD

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

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?
Which answer below best describes the number "4"?
There are many different parts and processes to a distillation column. Which of the design feature below can be best described as the generation of heat to the column?
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 restriction on the inlet flow, reducing the discharge flow?
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 liquid to enter and exit the trays?
Which of the responses below is best described as although slower than ΒΌ amplitude decay, the response is stable and has no overshoot?
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?
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?
Starting a boiler is an extremely complicated procedure. Which of the start-up steps would include excess fuel being expelled from the furnace?
Feedforward control strategies are developed from different sources. Which of the strategies below is derived equations that involve energy or mass balance equations?
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 steam drum level?
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 water level in the steam drum?
The direct ratio scheme calculates it's ratio using a flow relay. Which of the methods below does the flow relay use?
Which of the answers below is best defined as the systems reaction to applying an input to the control system, and the time to reach steady state?
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?
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?
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?
Centrifugal compressors have some specialized problems while operating. Which of the terms below is best described as the operation at a high flow rate but low discharge rate?
The graph below is an example of a typical positive displacement compressor. Which of the numbered points would best be described as when the cylinder is full of gas at suction pressure?
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 steam drum level?
There are many factors in the proper working of a distillation column. Which of the answers below is one of those factors?
Boiler safety is an important part of reliable operation. Which of the strategies below would concern itself with maintaining proper furnace pressures?
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.
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?
Starting a boiler is an extremely complicated procedure. Which of the start-up steps would include the pressure in the burner valve system must be within acceptable limits?