Question 1

Match the system description in with the system types .Use the system types as many times as needed.
-Found in direct liquid heating processes, liquid level processes, and sensors.

Accepted Answer

A)  First order lag 
B)  Second order lag

Question 2

Single loop continuous controllers are limited to the following operation modes: P, I, D, PI, PID.

Accepted Answer

A) True 
 B)False

Question 3

Both a microcomputer and a microcontroller contain a CPU.

Accepted Answer

A) True 
 B)False

Question 4

The transient response time for a control system is the length of time between the start of the rise or fall in the process variable and the point where it reaches the maximum change.

Accepted Answer

A) True 
 B)False

Question 5

Control systems with only proportional control will always have a process variable offset after a disturbance to the system.

Accepted Answer

A) True 
 B)False

Question 6

Modeling of the production process is more often done with process systems that have been in operation for a number of years because much is known about the systems.

Accepted Answer

A) True 
 B)False

Question 7

If the control system is underdamped then the response for the control system has ringing.

Accepted Answer

A) True 
 B)False

Question 8

Select the statement below that is the definition of a peak percentage overshoot response curve.

Accepted Answer

A)  The area between the ideal response and the actual response is made as small as possible. 
B)  Each successive peak of the ringing output is 25 percent of the previous. 
C)  The maximum peak overshoot is a percentage of the step change. 
D)  Minimum damping that produces the best rise time and no overshoot. 
E)  Correct statement not provided

Question 9

MATCHING. Choose the item in column 2 that best matches each item in column 1.
Match the process control term with the correct definition of the term. Definitions may be used more than once.
-Error

Accepted Answer

A)  A pneumatic, electronic, or digital device that applies gain and compensation to the error input and produces an output that corrects for the change in the set point or process variable. 
B)  The parameter in the process that is being controlled. 
C)  The device used to convert the process variable output into a physical form with units that are consistent with the input requirements of the control system. 
D)  Any change that causes a change in the process variable. 
E)  A n integer or real value that represents the desired value of the process variable.
F)A control devices that physically changes the primary process variable and is the final hardware device in the loop.
G) A variable changed by the final control element to achieve the desired change in the process variable.
H) The difference between the set point and process variable.
I) The device used to convert the set point input into a physical form with units that are consistent with the input requirements of the control system.
J) The signal output that drives the final control element.
K) A device with two inputs that algebraically adds the two inputs and outputs the sum or difference.

Question 10

MATCHING. Choose the item in column 2 that best matches each item in column 1.
Match the process control term with the correct definition of the term. Definitions may be used more than once.
-Process variable

Accepted Answer

A)  A pneumatic, electronic, or digital device that applies gain and compensation to the error input and produces an output that corrects for the change in the set point or process variable. 
B)  The parameter in the process that is being controlled. 
C)  The device used to convert the process variable output into a physical form with units that are consistent with the input requirements of the control system. 
D)  Any change that causes a change in the process variable. 
E)  A n integer or real value that represents the desired value of the process variable.
F)A control devices that physically changes the primary process variable and is the final hardware device in the loop.
G) A variable changed by the final control element to achieve the desired change in the process variable.
H) The difference between the set point and process variable.
I) The device used to convert the set point input into a physical form with units that are consistent with the input requirements of the control system.
J) The signal output that drives the final control element.
K) A device with two inputs that algebraically adds the two inputs and outputs the sum or difference.

Question 11

March the feature to its language.
-Cannot access all CPU instructions

Accepted Answer

A)  Assembly language 
B)  C languag

Question 12

MATCHING. Choose the item in column 2 that best matches each item in column 1.
Match the process control term with the correct definition of the term. Definitions may be used more than once.
-Controller output

Accepted Answer

A)  A pneumatic, electronic, or digital device that applies gain and compensation to the error input and produces an output that corrects for the change in the set point or process variable. 
B)  The parameter in the process that is being controlled. 
C)  The device used to convert the process variable output into a physical form with units that are consistent with the input requirements of the control system. 
D)  Any change that causes a change in the process variable. 
E)  A n integer or real value that represents the desired value of the process variable.
F)A control devices that physically changes the primary process variable and is the final hardware device in the loop.
G) A variable changed by the final control element to achieve the desired change in the process variable.
H) The difference between the set point and process variable.
I) The device used to convert the set point input into a physical form with units that are consistent with the input requirements of the control system.
J) The signal output that drives the final control element.
K) A device with two inputs that algebraically adds the two inputs and outputs the sum or difference.

Question 13

Match the system description in with the system types .Use the system types as many times as needed.
-Gain has a roll off of 20 db per decade.

Accepted Answer

A)  First order lag 
B)  Second order lag

Question 14

Integral time is the number of repeats per minute and reset is the reciprocal of the integral time.

Accepted Answer

A) True 
 B)False

Question 15

The only way to eliminate steady -state error after a system disturbance is to add equal amounts of integral and derivative action to a proportional controller.

Accepted Answer

A) True 
 B)False

Question 16

The three main bus systems in a microcontroller are address, data, and I/O.

Accepted Answer

A) True 
 B)False

Question 17

Match the system description in with the system types .Use the system types as many times as needed.
-One storage element and dissipative element.

Accepted Answer

A)  First order lag 
B)  Second order lag

Question 18

A watchdog timer generates an interrupt when the system is hung.

Accepted Answer

A) True 
 B)False

Question 19

The Joint Test Action Group coordinates those microcontroller instructions that are used for software troubleshooting.

Accepted Answer

A) True 
 B)False

Question 20

Of the three components in a system response (dead time, transient response, and steady -state response), dead time is the most difficut for the closed -loop system to correct.

Accepted Answer

A) True 
 B)False

Exam 7: Embedded Microcontrollers, Open and Closed Loop Process Control

Match the system description in with the system types .Use the system types as many times as needed. -Found in direct liquid heating processes, liquid level processes, and sensors.

Single loop continuous controllers are limited to the following operation modes: P, I, D, PI, PID.

Both a microcomputer and a microcontroller contain a CPU.

The transient response time for a control system is the length of time between the start of the rise or fall in the process variable and the point where it reaches the maximum change.

Control systems with only proportional control will always have a process variable offset after a disturbance to the system.

Modeling of the production process is more often done with process systems that have been in operation for a number of years because much is known about the systems.

If the control system is underdamped then the response for the control system has ringing.

Select the statement below that is the definition of a peak percentage overshoot response curve.

MATCHING. Choose the item in column 2 that best matches each item in column 1. Match the process control term with the correct definition of the term. Definitions may be used more than once. -Error

MATCHING. Choose the item in column 2 that best matches each item in column 1. Match the process control term with the correct definition of the term. Definitions may be used more than once. -Process variable

March the feature to its language. -Cannot access all CPU instructions

MATCHING. Choose the item in column 2 that best matches each item in column 1. Match the process control term with the correct definition of the term. Definitions may be used more than once. -Controller output

Match the system description in with the system types .Use the system types as many times as needed. -Gain has a roll off of 20 db per decade.

Integral time is the number of repeats per minute and reset is the reciprocal of the integral time.

The only way to eliminate steady -state error after a system disturbance is to add equal amounts of integral and derivative action to a proportional controller.

The three main bus systems in a microcontroller are address, data, and I/O.

Match the system description in with the system types .Use the system types as many times as needed. -One storage element and dissipative element.

A watchdog timer generates an interrupt when the system is hung.

The Joint Test Action Group coordinates those microcontroller instructions that are used for software troubleshooting.

Of the three components in a system response (dead time, transient response, and steady -state response), dead time is the most difficut for the closed -loop system to correct.