Lesson 2

Question 1

The desired value where the process should be maintained is called the ?

Answer 1

Setpoint

Question 2

The variable for which supply and demand must be balanced - the system under control, excluding the equipment that does the controlling, is called the ?

Answer 2

Process

Question 3

Any variable property of a process; the part of the process that changes, and therefore needs to be controlled, is called the ?

Answer 3

Process Variable (PV)

Question 4

The departure from a desired value; the system deviation that exists after the process has been stabilized is called ?

Answer 4

Deviation

Question 5

What describes the difference between setpoint and process variable?

Answer 5

Deviation

Question 6

Control systems today are used to ____ a process or indicate when a process has reached a desired _______.

Answer 6

regulate; setpoint(result)

Question 7

A ________ is defined as any function or operation utilized in the treatment of a material.

Answer 7

Process

Question 8

The components that are monitored by a video screen are actually _____ that are used to ____ a particular function.

Answer 8

devices; measure

Question 9

Microprocessor systems of today can contain a wide variety of user-defined algorithms which ____ and ____ the process.

Answer 9

initiate; control

Question 10

For all processes, the signals used to ____, ____, and _____ are all performed by devices that provide an interface from a controller to a working process.

Answer 10

record; monitor, control

Question 11

I/O are identified as ____ and ____ when defining control signals.

Answer 11

inputs; outputs

Question 12

All control systems share a common thread which are the ____ and ____ control elements.

Answer 12

initiating; final

Question 13

An operating system depends upon the accurate ____, ____, and ____ of data that is the responsibility of the field devices and therefore, the responsibility of the field technician.

Answer 13

sensing; signaling; transmission

Question 14

A process may include many variables which may have the option of being ___ or used for ____.

Answer 14

monitored; control

Question 15

Sometimes out of necessity, a controller will be performing the control functions for several processes; this controller is referred to as a ____.

Answer 15

shared control

Question 16

Flow rates, levels, temperatures, pressures, and more are all read by a controller and the total ____ for each system may number in the hundreds.

Answer 16

variable

Question 17

Typical signals used in process control are ___,___, and ___.

Answer 17

analog; digital; discrete

Question 18

A ___ measurement and/or signal represents a range of values.

Answer 18

analog

Question 19

A ____ signal is often referred to as an on/off switch.

Answer 19

discrete

Question 20

The information gathered by field measuring devices should accurately portray working ____.

Answer 20

process