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

Find the true statement for the process controller for a process with a short process reaction time and rapid changes in the process variable due to disturbances.

Match the type of code t o its name. -Function

Match the definition with the correct tuning method listed . Methods can be used as often as necessary. -Would be the best process for an existing system that has experienced a process change but has a fast response time.

In a reverse acting closed loop control system, the process variable and the controller output move in the same direction.

Phase margin is the addition drop in phase angle from 180 degrees that makes a system more responsive but not unstable.

Find the true statement for the process controller for a process that must have no offset in the process variable when the process has small capacitance and with a slow but large disturbance.

One of the four advantages provided by a control system is compensation for disturbances.

Which one of the following statements about the response curve of a system is NOT true?

Identify the true statement.

Which one of the following is NOT one of the major control objectives?

The total system response is the sum of the natural and forced responses.

Match the system description in with the system types .Use the system types as many times as needed. -Gain roll off is at 40 db per decade.

Gain for a process control system or block is the change in input value divided by the change in output value.

Select the statement below that is the definition of a critically damped response curve.

Match the type of code t o its name. -Module

When compiling your high level language program, an assembler is still required to translate to machine language.

Match the definition with the correct tuning method listed . Methods can be used as often as necessary. -Requires that a value of the system gain can be found that will keep the system in a stable oscillation after a disturbance.

Find the true statement for the process controller for a long process reaction with no transfer lag, no dead time, and small slow distrubances.

A source -code debugger controls the program on the target system.

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. -Final control element