Chapters 1-4

Question 1

The first consideration of a process technician is

Answer 1

safety of employees and community

Question 2

To be a good troubleshooter, you have to know ___

Answer 2

what is normal

Question 3

Purpose of process instrumentation

Answer 3

to control PV at a desired SP

Question 4

5 instruments of a control loop

Answer 4

sensor, transmitter, controller, final control element, transducer

Question 5

Common flow elements

Answer 5

flow orifices, turbines, and other DP elements

Question 6

Pressure

Answer 6

force per unit area (psi)

Question 7

Atmospheric pressure at sea level

Answer 7

14.7 PSIA

Question 8

Gauge pressure at sea level

Answer 8

0 PSIG

Question 9

Level elements

Answer 9

dP cell, displacer (buoyancy), sight glass, float/tape, bubbler

Question 10

wires of dissimilar metals connect at one end and generate electrical signal

Answer 10

Thermocouples

Question 11

measures temperature based on electrical resistance

Answer 11

RTD (resistance temperature device)

Question 12

BFD

Answer 12

Block Flow Diagram

Question 13

PFD

Answer 13

Process Flow Diagram

Question 14

P&ID

Answer 14

Piping and Instrument Diagram

Question 15

Bubble with no line

Answer 15

field mounted

Question 16

Bubble with solid line

Answer 16

control room mounted

Question 17

What pressure are many large storage tanks designed to operate at?

Answer 17

atmospheric pressure

Question 18

Most electric motors in industry are __ phase and run at ____ Volts

Answer 18

Most electric motors in industry are 3 phase and run at 480 Volts

Question 19

Primary method of cooling in cooling tower

Answer 19

evaporative

Question 20

Water tube boilers consist of a _______ drum (top), _____ tubes, and a _____ drum.

Answer 20

Water tube boilers consist of a STEAM drum (top), BOILER tubes, and a MUD drum (bottom)

Question 21

A fired heater used to heat raw materials to operating temperature

Answer 21

Furnace

Question 22

Type of heat exchanger that proves heat balance to a distillation column

Answer 22

Kettle Reboiler

Question 23

Converts raw materials into useful products by chemical reaction

Answer 23

Reactor

Question 24

What is used in a reactor to speed up the rate of reaction?

Answer 24

Catalyst

Question 25

Separating components of a feed based on boiling points

Answer 25

Distillation

Question 26

Distillation Column: Where do lighter products (low boiling point) exit the column and in what phase?

Answer 26

top in vapor phase

Question 27

Distillation Column: Where do heavier products (high boiling point) exit the column and in what phase?

Answer 27

Bottom in liquid phase

Question 28

Vapors from top of distillation are condensed in overhead condenser and collected in an ______

Answer 28

accumulator

Question 29

A collection of instruments that work together to control a process variable (PV)

Answer 29

Control Loop

Question 30

Typically designed to measure flow rate and control the flow downstream of the measuring device.

Answer 30

Flow Control Loop

Question 31

Most common element in flow control loop

Answer 31

Orifice Plate

Question 32

Creates a differential pressure (dP) that is measured by a transmitter

Answer 32

Orifice Plate

Question 33

Composed of a tapered tube, scale, and a ball or float - usually a field instrument.

Answer 33

Rotameter

Question 34

Pressure element that expands with increased pressure and collapses with lower pressure.

Answer 34

Bellows

Question 35

Most common type of field pressure gauge. C-shaped element swells with increased pressure and moves a linkage that drives an indicator.

Answer 35

Bourdon tube

Question 36

Senses pressure and sends signal to a controller or recorder

Answer 36

Pressure transmitter

Question 37

How is temperature most often controlled?

Answer 37

By controlling the flow of a heating or cooling liquid

Question 38

Most common temperature elements:

Answer 38

RTD and Thermocouple

Question 39

Analytical instrument used to determine acidic or base

Answer 39

pH

Question 40

Analytical instrument for suspended solids

Answer 40

Turbidity

Question 41

Analytical instrument for dissolved solids

Answer 41

Conductivity

Question 42

Controller located in the field or near equipment

Answer 42

Local Controller

Question 43

Controller located in control room or on DCS

Answer 43

Remote Controller

Question 44

PLC

Answer 44

Programmable Logic Controller

Question 45

DCS

Answer 45

Distributed Control System

Question 46

Converts one form of energy into another.

Answer 46

Transducer

Question 47

Control Valve - FO

Answer 47

Fails Open (air to close)

Question 48

Control Valve - FC

Answer 48

Fails Close (air to open)

Question 49

Controller Mode used as a scaling factor from 0-100% output. Sometimes expressed as gain.

Answer 49

Proportional Band

Question 50

Controller Mode - how large is the error and ow long did it last. Sometimes expressed as reset.

Answer 50

Integral

Question 51

Controller Mode - how fast did the PV move away from the setpoint. Sometimes expressed as rate.

Answer 51

Derivative

Question 52

Device designed to prevent damage to equipment and personnel.

Answer 52

Interlock

Question 53

Controls conditions that must be satisfied before a piece of equipment can be started

Answer 53

Permissive