Lesson 3

Question 1

A character set that contains both letters and digits is often referred to as ____.

Answer 1

Alphanumeric

Question 2

A set of characters such as words, digits, or parameters handled as a unit is called a ____.

Answer 2

Block

Question 3

Transmission and reception of data among data processing equipment and related peripherals is referred to as ___ between devices.

Answer 3

communication

Question 4

The ____ starts at the process in the form of a measurement or variable that is monitored and returned to the process in the form of a manipulated variable or “valve position” being controlled by some means.

Answer 4

control loop

Question 5

A ___ is a manual loading station that provides switching between manual and automatic control modes of a control loop.

Answer 5

Control Station

Question 6

A device, other than a common, hand-actuated ON-OFF valve or self-actuated check valve, that directly manipulates the flow of one or more fluid process streams is called a ___.

Answer 6

control valve

Question 7

A ____ is an output signal which represents the size of an input in the form of a series of discrete quantities.

Answer 7

digital output

Question 8

A ____ is a component of a control system, such as a valve, which directly regulates the flow of energy or material to the process.

Answer 8

Final control element

Question 9

A ____ is a device used for measuring the flow or quantity of moving liquid.

Answer 9

Flow Meter

Question 10

A signal path where a combination of two or more instruments or control functions are arranged so that signals pass from one to another for the purpose of measurement and/or control, is called a ____.

Answer 10

loop

Question 11

A drawing that uses symbols and identifiers to portray a process and the intrumentation used for monitoring and/ or controlling the process and is often abbreviated by using ____.

Answer 11

P&ID; Process and instrumentation Diagram

Question 12

A ____ is a part of a flow meter which receives a signal proportional to the flow rate from the primary device and displays, records, and/or transmits the signal.

Answer 12

secondary device

Question 13

A ____ is the part of a transducer that reacts directly in response to the input.

Answer 13

sensing element

Question 14

a ___ is a device which converts information of one physical form to another physical type in its output.

Answer 14

transducer

Question 15

A drawing which shows all related devices for controlling means and the wiring path, termination points, and device locations is called a ____.

Answer 15

Loop Sheet

Question 16

A record of devices listed by tag number that shows related ranges, set points, material construction, process exposure, and related environemental variables is called ____.

Answer 16

Specification Sheet

Question 17

A ___ is a drawing that usually shows related devices between loop sheets.

Answer 17

Wiring diagram

Question 18

A ___ usually indicates termination points of controlling means.

Answer 18

Elementary Drawing

Question 19

It is important for the field technician to understand the working concepts of a system in order to know how his devices may ___ and ___ the operating algorithm of a controller.

Answer 19

interface; change

Question 20

In order for a field technician to properly ___, ___, and ___ various systems, it is necessary for the technician to have a working knowledge of digital systems.

Answer 20

calibrate; troubleshoot; loop check

Question 21

In order for a field technician to properly ___, ___, and ___ various systems, it is necessary for the technician to have a working knowledge of digital systems.

Answer 21

calibrate; troubleshoot; loop check