What was created in 1932 by Harry Nyquist?

The first theoretical paper on automatic process control

What are metal tape gauges generally used to measure?

Continuous level changes in a tank

What are the categories of process instrumentation components?

Location, function, and signal type

Which of the following is an important aspect of a process operator’s work?

Responding to instrument alarms or signals

What is an expectation of operations personnel?

To perform routine tasks and checks related to analytical equipment

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Instrumentation Part 1 Unit Test Chapters 1-6

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Answers

1
What is 20 inches Hg converted to inches H2O?
250.5” H2O
271.6” H2O
301.1” H2O
280.8” H2O
2
Who is responsible for initiating the first steps in troubleshooting problems?
Equipment technician
Process technician
Assistant mechanic operator
Plant manager
3
Which of the following flow meters is a modified differential pressure transmitter?
Vortex
Ultrasonic
Target
Integral
4
Which of the following is the most common indirect level measurement method?
Linear head pressure
Level head pressure
Liquid head pressure
Local head pressure
5
How is rotational speed measured?
Linear feet/hour
Revolutions/hour
Linear feet/second
Revolutions/minute
6
How many atmosphere is the psia equivalent?
10 atmospheres
1 atmosphere
5 atmospheres
0 atmospheres
7
Which of the following identify sound waves with frequencies that are not detectable by the human ear?
Ultrasonic devices
Nuclear devices
Level devices
Radar devices
8
Which of the following is a measurement of potential?
Optical measurement
ORP
Conductivity
Combustion
9
What is the mathematical relationship between psia and psig?
psia = psi + psig
psia = psig + 14.7 psi
psig = psi - psia
psig = psia + 14.7 psi
10
Which of the following refers to a measurement taken directly in a process pipe?
Remote
Direct
Online
Inline
11
Which of the following is the sum of instantaneous flow rates over time?
Fluid rate
Total flow rate
Flow rate
Total flow
12
At what temperature does water freeze in degrees Celsius?
-5°C
32°C
-32°C
0°C
13
Why are tubular glass gauges used less frequently?
They are expensive.
They are fragile.
They are outdated.
They are heavy.
14
Which of the following is NOT a purpose of level-sensing/measuring devices?
To measure liquid flow rate
To measure liquid level
To monitor liquid level
To control liquid level
15
What does most high-speed rotating equipment have installed?
Vibration monitors
Overspeed protection
Temperature control
Speed devices
16
What is the most common type of manometer?
Shallow vessel
U-shaped tube
Tall vile
Long gauge
17
Which of the following is a measured property of the process that can be controlled by a DCS?
Process metric
Process theme
Process variable
Process hazard
18
What is considered a total vacuum?
0 millibars
0 psi
0 psig
0 psia
19
Who determined the freezing point of 32 degrees?
Galen
Galileo
Gabriel Fahrenheit
Anders Celsius
20
What was created in 1932 by Harry Nyquist?
The first theoretical paper on automatic process control
The first process control system
The first automatic sight glass
The first electronic control system
21
What are metal tape gauges generally used to measure?
The position of a float to a liquid level
Continuous level changes in a tank
Specific gravity of a liquid
The difference in pressure between two liquids
22
What does an accelerometer measure?
Acceleration
Pressure
Speed
Vibration
23
Which of the following was one of the first types of industrial speed controls?
Flyball governor
Level gauge
Steam engine
Sight glass
24
What are the categories of process instrumentation components?
Signal type, location, and transmission
Transmission, area, and location
Function, area, and signal type
Location, function, and signal type
25
What type of flow is a Reynolds number of 1,000?
Smooth
Turbulent
Laminar
Transient
26
Which of the following is the density of a substance relative to the density of water?
Specific gravity
Pressure
Specific density
Force
27
How many times larger is the Celsius scale unit than the Fahrenheit unit?
1.5 times larger
1.8 times larger
2 times larger
2.5 times larger
28
Which of the following measures tank levels using the material weight applied to the device?
Pressure transducers
Pressure gauges
Strain gauges (load cells)
Differential pressure transmitters
29
Who introduced the Model 4004 microprocessor in 1971?
Intel Corporation
Microsoft Corporation
IBM
The U.S. government
30
Which of the following is the amount of atomic or molecular weight in a body or object?
Mass
Density
Force
Pressure
31
Which type of flat glass level gauge must be rugged to prevent the material in the tank from draining out?
Float level gauges
Welded level gauges
Reflex level gauges
Transparent level gauges
32
What type of energy does temperature measure?
Thermal
Potential
Differential
Kinetic
33
Which of the following creates a measurable variable that is proportionally equal to flow rate?
Secondary flow element
Primary flow element
Direct flow element
Fluid flow element
34
Which of the following is a push or pull exerted on a solid object?
Mass
Force
Density
Pressure
35
What does a Reynolds number of over 4,000 indicate?
Corrupted flow
Streamlined flow
Laminar flow
Turbulent flow
36
Which of the following is one of the most common process variables encountered?
Pressure
Volume
Temperature
Density
37
Which of the following is rapid combustion of a substance resulting in its conversion to heat, light, and gases?
pH
Chromatography
Optical measurement
Combustion
38
What kind of instruments are powered by compressed air or gas?
Electric instruments
Kinetic instruments
Pneumatic instruments
Analog instruments
39
Which of the following is NOT a unit of pressure measurement?
Kelvin
Bar
Newton
Pascal
40
Which of the following is an important aspect of a process operator’s work?
Responding to instrument alarms or signals
Cleaning instrumentation
Monitoring the temperature of instrumentation
Creating reports on instrumentation costs
41
What happens to the volume of a liquid when the temperature increases?
The volume remains the same
The volume causes extreme pressure
The volume decreases
The volume increases
42
Which of the following is the unit of measurement on barometers to determine atmospheric pressure?
psi
psia
Bar
Millibar
43
Which of the following is determined by the difference between two velocity sensor signals?
Density flow
Mass flow
Volumetric flow
Velocity flow
44
What is the significance of a pH above 7.0?
It has no significance in pH measurement
It indicates a neutral solution
It indicates an acidic solution
It indicates a basic solution
45
Which of the following are small ceramic resistors with a high temperature coefficient of resistance?
Thermistors
Resistance temperature detectors
Thermocouples
Thermowells
46
Which of the following is a reason why computer use did not rapidly develop in the late 1950s?
They were imported from Russia.
They were not invented yet.
They required months of training to use.
They were expensive.
47
What are many RTDs connected to in processing industries?
Barometers
Thermometers
Thermocouples
Transmitters
48
What is an expectation of operations personnel?
To clean equipment and machinery
To analyze economic data
To perform routine tasks and checks related to analytical equipment
To create reports on the functionality of equipment
49
Which of the following can provide a molecular separation of one or more individual components in a sample?
Mass spectrometer
Optical analyzers
Gas chromatography
Turbidity meters
50
What is another name for the simplified relationship between temperature and pressure?
The Law of Pressure
The Law of Temperature
Charles’s Law
Smith’s Law
51
Which of the following are not typically found in process areas?
Thermocouples
Mercury filled thermometers
Pyrometer
Glass stem thermometers
52
What does a differential pressure transmitter measure?
The difference between two pressure points
The difference between two meniscuses
The difference between psig and psia
The difference between two pressure gauge readings
53
What are the three ways heat transfer occurs in process industries?
Convection, radiation, convention
Conduction, microwave, radiation
Conduction, convection, radiation
Convention, conduction, microwave
54
Which of the following is an example of a process variable and its unit of measurement?
All of the above
Pressure - pounds per square inch
Flow rate - gallons per minute
Temperature - degrees Fahrenheit
55
In what unit is mass flow measured?
Gallons per minute
Cubic feet
Cubic meters
Pounds per minute
56
Which of the following is NOT a factor that affects the accuracy of level measurement?
Color
Pressure
Viscosity
Temperature
57
What is the relationship between temperature and liquid level?
Temperature has no effect on liquid level.
As temperature increases, liquid level decreases.
As temperature increases, liquid level increases.
As temperature decreases, liquid level decreases.
58
What are rotameters designed to provide?
Flow indication
Flow type
Density measurement
Volumetric flow
59
What are the two kinds of flow measurement?
Flow per inch & total flow
Flow rate & fluid rate
Total flow & total fluid
Flow rate & total flow
60
How much head pressure does ten feet of water exert?
0.433 psi
43.3 psi
4.33 psi
433 psi
61
Which of the following types of monitors may be installed on property fence lines to analyze for escaped gases?
Area monitors
Unit monitors
Personnel monitors
Plant monitors
62
Which term refers to the surface position of a material in a vessel?
Pressure
Analytics
Total Flow
Level
63
13. Which of the following are one of the most common remote instruments?
Control loop instruments
Field instruments
Local level instruments
Control room instruments
64
What is another name for rectilinear speed?
Flat speed
Linear speed
Level speed
Rotating speed
65
Which of the following is a common way to indicate a flowing process?
Mass flow units
Percentage flow rate
Positive flow rate
Volumetric flow units
66
What is the relationship between liquid level and float position?
Liquid level and float position are not related.
As liquid level decreases, float position decreases.
As liquid level increases, float position decreases.
As liquid level increases, float position increases.
67
What happens to the boiling point of a liquid when the pressure applied to the surface of a liquid decreases?
The boiling point increases
The boiling point does not change
The boiling point decreases
The boiling point either decreases or remains the same
68
A tank has a starting temperature of 650° R. What is the temperature in Fahrenheit?
174° F
245° F
190° F
212° F
69
What government agency ensures that emissions coming from each unit fall within a given spectrum?
EPA
ANSI
GPO
FDA
70
Why is process monitoring important?
To track metrics
To increase efficiency
To ensure proper training
To mitigate widespread damage
71
Which of the following is the conversion formula for Celsius to Kelvin?
K = °C / 273
K = °C x 273
K = °C – 273
K = °C + 273
72
10. What is emissivity?
A measure of how much an object resembles a blackbody
A measure of the temperature of a solid object
A measure of the amount of heat an object gives
A measure of the density of an object
73
What does color measurement imply?
The measurement of light tones
The measurement of visible light
The measurement of gamma rays
The measurement of UV rays
74
Which of the following flow meters has four impact points spaced across the pipe?
Orifice plate
Flow nozzle
Multiport pilot
Pitot tube
75
Which of the following is the curved upper surface of a column of liquid?
Innage
Ullage
Depth
Meniscus
76
Which of the following is constructed of a bulb and capillary tube with a numbered scale?
Glass stem barometer
Bimetallic strip
Thermocouple
Glass stem thermometer
77
Which of the following measure the absorption of light passing through a sample?
Opacity analyzers
Turbidity meters
Photometers
pH meters
78
Which of the following is the pressure equivalent of inches of water to 1 psi?
1 psi = 27.7” H2O
1 psi = 10” H2O
1 psi = 2.04” H2O
1 psi = 20.2” H2O
79
In what unit is liquid head pressure usually expressed?
Inches of pressure
Inches of water column
Inches of mercury
Inches of gravity
80
Which of the following conversions must process technicians learn?
psi, psig, and psia
psi, psia, and inches mercury
psi, inches water column, and inches mercury
inches mercury and inches water column
81
What is another name for outage?
Interage
Innage
Distraction
Ullage
82
What is 77° F converted to Celsius?
25°C
32°C
20°C
28°C
83
Which of the following is a distance measurement starting at the surface of a liquid and extending downward?
Volume
Depth
Density
Height
84
Which of the following are on the decline?
Hybrids
Analog systems
Digital systems
Microprocessors
85
What is the formula for converting from psig to inches of mercury?
psig to in. of Hg = psig x 22.4
psig to in. of Hg = psig x 2.04
psig to in. of Hg = psig x 20
psig to in. of Hg = psig x 27.7
86
What type of fluid movement is smooth without obstruction?
Floating
Buoyant
Laminar
Turbulent
87
How many steps of the design process does a sample system need to do?
3
4
5
2
88
What can the process operator identify most quickly?
Process improvements
Rusted equipment
Failing processes
Chemical hazards
89
If a pH number increased by one, what is the change in concentration?
Ten times greater
Equal to the pH number increase
One thousand times greater
One hundred times greater
90
Which of the following is the most common measurement of temperature?
Multiple average points
Multiple points
Single point
Temperature differential

Instrumentation Part 1 Unit Test Chapters 1-6 Flashcards | StudBud