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Total questions: 122
Worksheet time: 1hrs 1mins
Name
Class
Date
1.
The first example of feedback control was the application of the ____ in 1775
a)
Steam engine
b)
Flyball governor
c)
Waterwheel
d)
Telegraph
e)
Internal combustion engine
2.
Which of the following is not a process variable?
a)
Level
b)
Flow
c)
Pressure
d)
Temperature
e)
Humidity
3.
Process instrumentation may be categorized by...
a)
Location, function and power source
b)
State, location and function.
c)
Function, Quantity and Quality
d)
Location, state and function
e)
Position, state and power source
4.
____ is a term applied to a device that uses binary numbers to represent continuous values or discrete states.
a)
Electrical
b)
Pneumatic
c)
Digital
d)
Analog
e)
Mechanical
5.
What happens to the pressure in a closed container when temperature increases or decreases?
a)
Temperature increases=pressure increases; temperature decreases=pressure increases
b)
Temperature increases=pressure decreases; temperature decreases=pressure decreases.
c)
Temperature increases=pressure doesn't change; temperature decreases=pressure changes.
d)
Temperature increases=pressure increases; temperature decreases=pressure decreases
e)
Temperature increases=pressure decreases; temperature decreases=pressure increases
6.
Formula that shows relationship between temperature and pressure
a)
P1/T1=P2/T2
b)
P1=T1
c)
P2=T2
d)
P1×T1=P2×T2
e)
P1=T2
7.
What happens to the pressure at the bottom of a vessel when the height of the liquid increases?
a)
Decrease
b)
Increase
c)
Don't change
d)
Remain constant
e)
None of above
8.
What happens to the volume of the material when temperature decreases?
a)
Don't change
b)
Increases
c)
Decrease
d)
Remain constant
e)
None of the above
9.
Density is defined as....
a)
velocity per unit time
b)
force per unit area
c)
mass per unit volume
d)
temperature per unit pressure
e)
time per unit mass
10.
____ principle states that as the speed of a moving fluid increases, the pressure within the fluid decreases.
a)
Watt's
b)
Faraday's
c)
Ohm's
d)
Pascal's
e)
Bernoulli's
11.
___-a push or pull exerted on an object that causes the object to change direction.
a)
Force
b)
Area
c)
Volume
d)
Mass
e)
Bars
12.
___ scale originates at atmospheric pressure
a)
Psi
b)
Psia
c)
Psig
d)
Bars
e)
Inches H2O
13.
At sea level, __ psi is the standardized pressure measurement.
a)
27.7
b)
1
c)
14.7
d)
33.52
e)
1.013
14.
Which type of manometer is the most common?
a)
Barometer
b)
Well type
c)
Inclined
d)
U-tube
e)
Digital
15.
___ pressure is defined as the difference in pressure between two related measurements
a)
Absolute
b)
Gauge
c)
Differential
d)
Vacuum
e)
Compound
16.
Specific gravity is the density of a substance relative to the density of ____
a)
Gas
b)
Water
c)
Oil
d)
Liquid
e)
Fluid
17.
Capacitance transducers measure pressure based on the ___________ between plates.
a)
Distance
b)
Velocity
c)
Mass
d)
Area
e)
Pressure
18.
One psi is equivalent to _____ inches of water.
a)
1
b)
100
c)
0.013
d)
27.7
e)
14.7
19.
What is the formula for the conversion from psig to inches of water?
a)
psig+14.7
b)
psig x 27.7
c)
psig×2.04
d)
psig-14.7
e)
psig/27.7
20.
What is 25 psig converted into psia?
a)
27
b)
31.7
c)
1.14
d)
5.4
e)
39.7
21.
21.___ is defined as the average kinetic energy of a material.
a)
temperature
b)
pressure
c)
level
d)
displacement
e)
flow
22.
22.___ is the transfer of heat through solid matter as it moves from one fixed molecule to the next.
a)
point
b)
b)conduction
c)
d)convection
d)
e)radiation
23.
___ the transfer of heat through the movement that occurs in a fluid when there is a difference in temperature from one region to another.
a)
point
b)
boiling point
c)
conduction
d)
convection
e)
freezing point
24.
__ is the transfer of heat by emitted radiant energy in the form of waves or particles.
a)
a)ultrasounds
b)
waves
c)
convection
d)
energy
e)
radiation
25.
What is a boiling point of pure water in scale Fahrenheit?
a)
32 degrees
b)
degrees
c)
672 degrees
d)
100 degrees
26.
___ are protective devices that are used to isolate temperature-sensing elements from the adverse conditions of a process
a)
a)thermowell
b)
thermometer
c)
thermocouple
d)
thermistor
e)
bimetallic strip
27.
What is the one of the types of thermometer?
a)
nozzles
b)
bourdon tube
c)
glass-stem
d)
bellows
e)
resistor
28.
What is a primary element that measures temperature?
a)
Thermistor
b)
Thermowell
c)
temperature gauge
d)
RTD
e)
Thermometer
29.
___ is a temperature-sensing bulb filled with a liquid, vapor, or gas connected by means of a capillary tube to a pressure-measuring clement.
a)
temperature gauge
b)
filled thermal system
c)
semiconductor
d)
junctions
e)
thermistors
30.
Which temperature scale(s) contain 100 degrees between the freezing point of water and the boiling point of water?
a)
Centigrade/Celsius
b)
Fahrenheit
c)
Rankine
d)
Kelvin
e)
Resistance
31.
What is the distance from a zero reference point in a container to the surface of the material?
a)
depth
b)
meniscus
c)
height
d)
length
e)
ullage
32.
___ is the measurement from the bottom of the tank to the surface of the product
a)
ullage
b)
outage
c)
height
d)
depth
e)
innage
33.
___ is the measurement from the surface of the product to the top of the vessel
a)
innage
b)
height
c)
depth
d)
ullage
e)
meniscus
34.
How many distinct categories is the level measurement divided into?
a)
3
b)
4
c)
2
d)
only one
e)
6
35.
What type of level measurement is described below?
Used to monitor all level points in the tank from zero percent at the bottom of the measuring device to 100 percent full.
a)
continuous level measurement
b)
point level measurement
c)
direct level measurement
d)
indirect level measurement
e)
percent level measurement
36.
Used to monitor all level points in the tank from zero percent at the bottom of the measuring device to 100 percent full.
a)
point level measurement
b)
direct level measurement
c)
indirect level measurement
d)
continuous level measurement
e)
Percent level measurement
37.
The common boundary, or plane, between two immiscible (i.e., incapable of mixing) liquids is called an ___.
a)
meniscus
b)
interface level
c)
float gauge
d)
load cell
e)
displacer
38.
What is one of the type of sight glasses?
a)
tubular-type
b)
float gauge
c)
transparent type
d)
reflex
e)
welded
39.
How many types of flat-glass level gauges are there?
a)
4
b)
2
c)
3
d)
6
e)
5
40.
What does a float gauge use to convey the position of the float to the fluid level?
a)
cables, pulleys
b)
tapes
c)
column
d)
metal rod
e)
nothing
41.
What does a tape gauge typically measure?
a)
Volume
b)
Air
c)
Length or level
d)
Time
e)
Resistance
42.
What is Annubar® tube used for?
a)
Temperature measurement
b)
Pressure measurement
c)
Flow measurement
d)
Level measurement
e)
None of the above
43.
What is a Rotameter?
a)
Temperature gauge
b)
Pressure sensor
c)
Flow meter
d)
Level indicator
e)
None of the above
44.
What does a Reynolds number describe?
a)
Flow
b)
Temperature
c)
Fluid viscosity
d)
Pressure
e)
None of the above
45.
What does a Percentage flow rate indicate?
a)
Flow rate relative to a reference value
b)
Absolute rate
c)
Fluid viscosity
d)
Fluid density
e)
None of the above
46.
A venturi tube is a primary element used in piping to create a ___ pressure; when converted to flow units (such as gpm).
a)
vacuum
b)
loss
c)
high
d)
low
e)
differential
47.
A ____ is a flow tube containing a free spinning turbine (fan) wheel where the revolutions per minute (rpm) are proportional to flow rate.
a)
mass flow meter
b)
turbine meter
c)
mag meters
d)
flow nozzles
e)
Venturi tube
48.
___ is a trade name one manufacturer has given to its multiport rube.
a)
pitot tube
b)
orifice plate
c)
Annubar
d)
mag meters
e)
turbine meter
49.
What is one of the type of miscellaneous flow meter?
a)
flow meter
b)
flow nozzle
c)
pitot tube
d)
annubar tube
e)
orifice plate
50.
What is the device that used to measure flowing liquids having at least some ability to conduct electricity?
a)
Electromagnetic flow meters
b)
turbine meter
c)
mass flow meter
d)
vortex flow meter
e)
target flow meter
51.
___ perform the same function as all other restriction devices; that is they provide a differential pressure that can be used to infer a flow rate.
a)
integral flow meter
b)
target flow meter
c)
flow nozzle
d)
mag meter
e)
mass flow meter
52.
What are the two types of analyzer measurement?
a)
quantitative/qualitative
b)
color/optical
c)
continuous/ contiguous
d)
turbidity/ opacity
e)
mass/ gas spectrometer
53.
What does Ph meter measure?
a)
electron potential
b)
electricity
c)
reflection
d)
absorption
e)
alkalinity, acidity
54.
In the chemical world, what does oxidation means?
a)
the loss of electrons whereas reduction means the gain of electrons.
b)
free electron potential exists in the sample.
c)
nonmetallic substance that becomes an ionic conductor
d)
negative millivolts indicates reduction
e)
visible light
55.
What kind of cell conductivity meter uses to quantily the measurement of the ability of a process material to conduct an electrical current?
a)
standard cell
b)
load cell
c)
d/p cell
d)
functional cell
e)
manufacturing cell
56.
A ___ analyzer provides the necessary means to accomplish the chromatographic sep-gration and analysis.
a)
mass spectrometry
b)
conductivity meter
c)
gas chromatography
d)
optical analyzer
e)
ORP meter
57.
A mass spectrometer is a device capable of separating a gaseous stream into a spectrum according to ___.
a)
density
b)
mass to charge
c)
viscosity
d)
weight
e)
molecules
58.
What a spectrometer can use as a source and detection measurement?
a)
radio waves
b)
sounds
c)
signals
d)
beam
e)
visible light (VIS), ultraviolet light (UV)
59.
___ can be used to determine how much organic as well as inorganic carbon is present in the sample.
a)
Carbon analyzers
b)
gas chromatography
c)
total carbon
d)
spectrometers
e)
conductivity meter
60.
Which type of analyzer is a photometer that operate in visible light spectrum?
a)
gas chromatography
b)
mass spectrometer
c)
conductivity meter
d)
color analyzer
e)
carbon analyzers
61.
___is an analytical method that can provide a molecular separation of one or more individual components in a sample.
a)
mass spectrometry
b)
gas chromatography
c)
optical analyzer
d)
ORP meters
e)
carbon analyzer
62.
61.____ is an object, device, or a system is the random or periodic change in velocity, acceleration, or displacement from a predetermined point.
a)
a)Speed
b)
b)Vibration
c)
c)Velocity
d)
d)Time
e)
flow rate
63.
62.Accepable limits within which ____ equipment can operate without casing excessive wear to the bearings or otherwise causing the equipment to be subjected to high stress forces.
a)
a)rotating
b)
b)rectilinear
c)
c)non-linear
d)
d)vibrating
e)
e)electronic
64.
Vibration can be measured with an accelerometer. One type of accelerometer sensor which is self-generating - ___.
a)
thermal
b)
optical
c)
capacitive type
d)
piezoelectric type
e)
strain gauge type
65.
Speed is the ___ traveled per unit of time irrespective of direction.
a)
device
b)
direction
c)
time
d)
distance
e)
sensor
66.
How many types of speed can be monitored?
a)
a)2
b)
b)5
c)
c)3
d)
d)4
e)
e)7
67.
___ is one of the most dangerous conditions occurring in a turbine.
a)
Vibration
b)
An accelerometer
c)
Rotational speed
d)
Rectilinear
e)
Overspeed
68.
67.What are two directions typically measured in vibration?
a)
Up and down
b)
speed and velocity
c)
axial and radial
d)
in and out
e)
distance and height
69.
68.___-where a solid material is weighed as it is conveyed on a moving belt and an instantaneous weight measurement is taken and the rate of motion of the belt is known.
a)
Vibration sensors
b)
Overspeed
c)
Mass flow rate
d)
Accelerometer
e)
Speed monitor
70.
The odometer in a car measures the distance traveled. How does it achieve this measurement?
a)
By tracking the car’s acceleration.
b)
By measuring the car’s speed over time.
c)
By counting the number of times the wheels rotate fully.
d)
By using GPS to track the car’s location.
e)
By calculating the fuel consumed by the car.
71.
70.Write the missing word.A speed monitor is comprised of a ____ and readout/receiving device.
a)
speed sensor
b)
vibration meter
c)
accelerometer
d)
rotational speed
e)
diaphragm
72.
71.Process control is the act of ___ one or more process variables.
a)
Sensing
b)
Measuring
c)
Regulating
d)
Tweaking
e)
Manipulating
73.
72.Which of the following is NOT a compound of a simple control loop?
a)
Sensor
b)
Final Control Element
c)
Controller
d)
Transmitter
e)
Vessel
74.
What is the key component that enables a closed-loop control system to adjust the process variable?
a)
The setpoint
b)
The process variable
c)
The final control element
d)
The feedback signal
e)
The control unit
75.
74.____ is defined as a signal path without feedback.
a)
closed loop control
b)
open loop control
c)
ratio control
d)
cascade control
e)
split-range control
76.
75.If accuracy is defined as [(measured value-true value)]X100%.find the accuracy of a pressure gauge if the true value is 100 psig and it reads 98 psig.
a)
a)98
b)
b)20%
c)
c)2%
d)
d)1.02
e)
e)35%
77.
76.Accuracy is determined by how __ the measurement corresponds to its true value.
a)
far
b)
near
c)
close
d)
similar
e)
clear
78.
Which of the following is NOT an example of signal converter:
a)
pneumatic-to current
b)
voltage-to-pneumatic
c)
digital-to-pneumatic
d)
analog-to-digital
e)
pneumatic-to-voltage
79.
Which of these signal transmission methods uses air pressure to convey information?
a)
Electronic (analog)
b)
Pneumatic (analog)
c)
Digital
d)
Mechanical
e)
analog
80.
Which of the instruments is an example of using a mechanical link?
a)
orifice plate, flow nozzle
b)
ph, ORP meter
c)
Speed sensor
d)
displacer level device, control valve positioner
e)
gauge
81.
80.Which formula is this? Eloop=+/-√(Etransmitter)2+(Evalve)2+...
a)
Live zero
b)
Mechanical Link
c)
Manipulating element
d)
Precision
e)
Loop Error
82.
81.What is the linear scaling?
a)
A linear relationships between two scales
b)
A method for transforming data to fit a linear regression model
c)
A technique for adjusting the size of elements in a design or visualization in proportion to a linear scale
d)
A process for converting non-linear data into a linear format for analysis
e)
A method for adjusting the size of objects in computer graphics to maintain proportional relationships with a linear scale.
83.
82.Discrete sensing elements are devices connected to the _ by sensor wires.
a)
sensor
b)
transducer
c)
final element
d)
Transmitter
e)
converter
84.
83.what does mean URV?
a)
upper range value
b)
operating range
c)
lower range value
d)
span
e)
new scale
85.
84.what does mean LRV?
a)
upper range value
b)
operating range
c)
lower range value
d)
span
e)
new scale
86.
The most electronic instrument signal used in process industries is expressed in_?
a)
millivolt
b)
milliamps
c)
pounds per square inch
d)
span
e)
range
87.
86._ are used to indicate actual measurement values.
a)
Tickers
b)
Gauges
c)
Protractors
d)
Scales
e)
Markers
88.
Scaling is the act of equating the _ of one scale to its mathematically
4 lines
89.
Scaling is the act of equating the _ of one scale to its mathematically proportional value on another scale.
a)
Magnitude
b)
Dimension
c)
Ratio
d)
Magnification
e)
Numerical value
90.
Examples for discrete sensors ?
a)
Photodetectors
b)
Magnetic reed switches
c)
Proximity sensors
d)
Limit switches
e)
Thermocouples and rtd
91.
89.The transmitter produces an _ that carries the measurement information to the next instrument in the loop.
a)
Input signal
b)
Feedback signal
c)
Control signal
d)
output signal
e)
Auxiliary signal
92.
90.the role of primary sensor is to detect a _
a)
Secondary variable
b)
process variable
c)
Background noise
d)
System parameter
e)
Control signal
93.
What does an auto/manual switch allow a process technician to do?
a)
Adjust the setpoint of the controller
b)
Monitor the controller output
c)
Select either automatic or manual control
d)
Change the control algorithm response
e)
Control the flow rate
94.
What is bumpless transfer in control systems?
a)
A process upset occurring when switching modes
b)
Changing the controller output significantly
c)
Adjusting the setpoint to the actual controlled point
d)
A switch from manual to automatic mode
e)
The act of changing modes without significant output change
95.
What is the most common final control element in the processing industry?
a)
Sensor
b)
Pump
c)
Actuator
d)
Controller
e)
Control valve
96.
What does derivative action in control systems respond to?
a)
Deviation of the controlled variable from the setpoint
b)
Change in input divided by change in output
c)
Rate of change of the process variable
d)
Length of time the controlled variable has been away from the setpoint
e)
Setpoint adjustment
97.
What is the purpose of louvers (dampers) in control systems?
a)
Control airflow
b)
Monitor temperature
c)
Adjust pressure
d)
Regulate flow rate
e)
Measure fluid level
98.
What does the local/remote switch on a controller allow the technician to switch between?
a)
Local and manual mode
b)
Automatic and remote mode
c)
Local and remote setpoints
d)
Manual and automatic control
e)
Temperature and pressure control
99.
What does the auto/manual switch on a controller allow a process technician to do?
a)
Adjust the process variable
b)
Monitor the controller output
c)
Select either automatic or manual control
d)
Set the setpoint value
e)
Control the process temperature
100.
What does the output of the primary controller become in a cascade control setup?
a)
Setpoint of the secondary controller
b)
Setpoint of the primary controller
c)
Process variable of the secondary controller
d)
Process variable of the primary controller
e)
Remote control input
101.
What is the primary advantage of using a cascade control loop?
a)
Better control
b)
Increased lag times
c)
Reduced control variability
d)
Simpler control system setup
e)
Decreased process efficiency
102.
How does an actuator mounted to a control valve convert instrument signals?
a)
Into electrical signals
b)
Into hydraulic signals
c)
Into linear or rotary motion
d)
Into pressure signals
e)
Into temperature signals
103.
1.Which of the following is NOT a function of a valve positioner?
a)
Reverse the action
b)
Mimic a valve trim type
c)
Provide split-range control
d)
Control the flow rate
e)
Adjust valve stem packing
104.
102.which of the following is not the type of valves used in control configurations:
a)
A)globe
b)
B)three-way
c)
or segmented ball
d)
valve
e)
Gate valve
105.
103.what is Body?
a)
housing component of a valve
b)
housing component of a sensor
c)
housing component of a transmitter
d)
housing component of a transducer
e)
The main structural component of a device
106.
A pressure _ would include sensing device, a controlling device, and a final controlling element.
a)
control system
b)
process variable
c)
control loop
d)
cascade
e)
transmitter
107.
105.A butterfly valve is opened with ?
a)
motion
b)
stem
c)
modulator
d)
Pressurized fluid injection
108.
106.What is the primary function of a regulator?
a)
To regulate variables such as pressure, flow, level, and temperature
b)
To generate energy for the process stream
c)
To reduce excess downstream pressure
d)
To monitor instrument air distribution
e)
Maintaining system safety protocols
109.
107.Which type of regulator is discussed in the chapter?
a)
Temperature regulator
b)
Level regulator
c)
Air pressure regulator
d)
Flow regulator
e)
Hydraulic pressure regulator
110.
108.What is the purpose of the diaphragm in a pressure regulator?
a)
To supply pressure from a source
b)
To regulate pressure
c)
To sense pressure on the outlet side
d)
To compress the spring
e)
To act as a filter for incoming pressure
111.
109.What range of pressure do instrument air regulators typically reduce from?
a)
150-200 psig
b)
80-150 psig
c)
25-30 psig
d)
20-25 psig
e)
100-125 psig
112.
During a power failure, you want a valve that is allowing the addition of material to a tank to stop the flow. Therefore, this valve should be a:
a)
Fail-closed valve
b)
Fail-open calve
c)
Fail-in-place valve
d)
It doesn't matter; the power is off.
e)
Spring-loaded poppet valve
113.
Which organization develops standards for automation, instrumentation, control, and measurement?
a)
International Society of Automation (IS
b)
A)undefined
c)
American Society of Mechanical Engineers (ASM
d)
E)undefined
e)
International Organization for Standardization (IS
114.
What is typically included in a process flow diagram (PFD)?
a)
Detailed instrumentation symbols
b)
Piping and instrumentation details
c)
Major process equipment and process variables
d)
Heat and material balance information
e)
Block flow scheme
115.
What is the purpose of a legend in process diagrams?
a)
To show the sequence of operations
b)
To provide a detailed process description
c)
To explain the graphical representations used in the drawings
d)
To illustrate the flow of material and energy
e)
To indicate equipment connections
116.
What does the functional interpretation of the letter “CV” mean?
a)
control valve
b)
recorder
c)
element
d)
level
e)
flow recording controller
117.
What does the functional interpretation of the letter "FRC" mean?
a)
control valve
b)
recorder
c)
element
d)
level
e)
flow recording controller
118.
What does the functional interpretation of the letter "E" mean?
a)
control valve
b)
recorder
c)
element
d)
level
e)
flow recording controller
119.
The ISA standard for specific drawing symbols denoting functionality and a coded system built on the letters of the alphabet are in which of the following standards?
a)
ISA-S5.1
b)
ISA-S5.2
c)
ISA-S5.3
d)
ISA-S5.4
e)
Option 5
120.
What does the functional interpretation of the letter "FFIC" mean?
a)
control valve
b)
recorder
c)
flow indicating controller
d)
level
e)
flow recording controller
121.
find the option that is not a type of symbol
a)
basic equipment
b)
workers
c)
lines
d)
instrument balloons
e)
by process variables
122.
What does ISA stand for?
a)
Instrumentation Society of America
b)
International Society of Automation
c)
International Standards and Automation Society
d)
Instrumentation Standards Association
e)
Instrumentation Society Association
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