Frage 1
Frage
What does a decoupler used in a multivariable control system do?
Antworten
-
Removes intergral reset windup.
-
Couple the controller outputs.
-
Removes loop to loop interactions.
-
Allows the ability to enter separate set points.
Frage 2
Frage
In a 2X2 multivariable system with controlled variable b1 and b2 and manipulated variables m1 and m2. With m2 constant, a 10% change in m1 causes a 7% change in b1 and a 12% change in b2. With m1 a constant, a 1% change in m2 caused a -12% change in b1 and a 5% change in b2. Analysis of the OLM will show that......
Antworten
-
The system has a positive open loop matrix.
-
The system has a negative open loop matrix.
-
The system is decoupled.
-
The system has no interaction.
Frage 3
Frage
Ratio control is defined as....
Antworten
-
Two controlled outputs with their outputs held at a constant ratio.
-
One controlled variable controlled by a ratio to another measured variable.
-
A manipulated variable and controlled variable with their ratio held constant in the controller.
-
One controlled variable controlled by a ratio to another controlled variable.
Frage 4
Frage
If 14mA is input a ratio station (r=0.5) the output will be?
Frage 5
Frage
Feed Forward control is defined as.....
Antworten
-
Information related to one or more measured disturbances is fed into a controller to reverse the effects of the disturbance on the controlled variable.
-
Deviations from a desired set point are corrected by adjusting the controller output to reduce the error between the process variable and the set point.
-
The final excursion from the error relating to the set point will be eliminated.
-
Variables relating to time discrepancies.
Frage 6
Frage
Feed Foward control with feedback trim is used because?
Antworten
-
Model errors are responsible for causing deviation of the controllers output from the controlled variable.
-
Without trim the gain will increase rapidly.
-
The deviation in time constant must be accounted for.
-
Model errors are responsible for causing deviation of the controllers output from the measured variable.
Frage 7
Frage
Feed Forward control uses what to help control the loop?
Frage 8
Frage
A controller using split range has Valve A open from 0 to 100% when the controller is outputting 0-50% 4-12 mA and valve B open from 0 to 100% when the controller is outputting 12-20 mA. What is the position of Valve B if the controller is outputting 75%?
Frage 9
Frage
A problem with split range control is
Antworten
-
Two valves are used to control one stream.
-
When one valve is closed the other can be opened 100%.
-
Both valves cannot be open at the same time.
-
Only one set of tuning parameters is available.
Frage 10
Frage
Two characteristics used in distillation control are:
Antworten
-
Vaporization & Pressurization
-
Vaporization & Condensation
-
Pressurization & Condensation
-
Dew Point & Viscosisty
Frage 11
Antworten
-
Reflux Flow / Feed Flow
-
Feed Flow / Distillate
-
Reflux Flow / Distillate
-
Bottoms Flow / Tops Flow
Frage 12
Frage
Flooded Trays can be diagnosed by:
Antworten
-
High differential pressure and similar temperatures between trays.
-
High differential pressure and different temperatures between trays.
-
Low differential pressure and similar temperatures between trays.
-
Low differential pressure and different temperatures between trays.
Frage 13
Frage
Feed into distillation column should enter
Frage 14
Frage
In an industrial type boiler there is a sudden increase in steam demand. This will cause the steam drum level to.....
Frage 15
Frage
Three measurements in a boiler steam drum level controller are.....
Antworten
-
Level, Feed water flow, and steam header pressure.
-
Level, Steam flow, and Feedwater head pressure.
-
Drum level, Steam Flow, and Feedwater flow.
-
Steam flow, Drum Pressure, and Feedwater Flow.
Frage 16
Frage
The purpose of ensuring a boiler firing box is operated at negative pressure is...
Antworten
-
To protect operators from being overcome by CO.
-
To make sure the oxygen levels in the flue are at the right level.
-
A forced air fan is much stronger than an induced draft fan.
-
To make sure there is enough air to combust all the fuel.
Frage 17
Frage
One consideration when operating a stack gas heat recovery system is you should.....
Antworten
-
Keep the temperature below the dew point.
-
Not let the gases escape to the atmosphere.
-
Burn all excess hydrocarbons before venting the gas.
-
Keep the temperature above the dewpoint of condensation.
Frage 18
Frage
How do you control load in a centrifugal compressor?
Antworten
-
Differential Pressure
-
Discharge Valve
-
Suction Valve
-
Siphon Valve
Frage 19
Frage
The purpose of a thermocouple on a discharge reciprocating compressor is.....
Antworten
-
to convert head to electricity to power the control panel.
-
protect the cooling system.
-
prevent equipment damage due to non-rod reversal.
-
to make the compressor more efficient
Frage 20
Frage
How to control surge in a centrifugal compressor?
Frage 21
Frage
What is a bypass valve used for in a reciprocating compressor?
Antworten
-
Load control
-
Speed control
-
Pressure control
-
Protection
Frage 22
Frage
How to prevent liquid spillover into the compressor?
Frage 23
Frage
What is not part of an SIS?
Frage 24
Frage
What is true of an SIS system?
Antworten
-
Is not included in the basic control system.
-
Does not need to be tested after installation.
-
Requires special approval to operate.
-
Drawings must be approved by the regulating body before construction.
Frage 25
Frage
What SIL Level is 10,000 to 1000?
Frage 26
Frage
Why would PST (Partial Stroke Testing) be selected on SIS Control Valves?
Frage 27
Frage 28
Frage
What is a characteristic of RS-232 Protocol?
Antworten
-
A voltage change between bit time is a 1.
-
Voltage stays steady at first then as the signal changes from a positive to a negative the voltage at the halfway point of the bit time and then returns to zero is a 1.
-
A 1 is represented by a signal change in either direction.
-
-3 to -25 V is a mark
Frage 29
Frage
What kind of access method is used by Modbus?
Antworten
-
Token Ring
-
Token Bus
-
Master / Slave
-
CMSA / CD
Frage 30
Frage
A modem using digital modulation....
Antworten
-
Connects to and send out a digital signal.
-
Receives a digital signal and outputs an analog signal.
-
Receives a digital signal and outputs an digital signal.
-
Converts one communication signal to another.
Frage 31
Frage
Digital data can be sent over a PSTN phone network using...
Antworten
-
a phone line connected directly to COM1.
-
receiving a digital signal and sending a digital signal.
-
a modem that takes analog signals and converts them to digital signals usable by phone lines.
-
a modem that takes digital signals and converts them to a usable analog signal.
Frage 32
Frage
A bell 202 modem uses this on its main channel
Antworten
-
Amplitude modulation.
-
Frequency Shift Keying
-
Phase Shift Keying
-
HART
Frage 33
Frage
What topology does HART use when digital signaling?
Antworten
-
Star
-
Ring
-
Multidrop Bus
-
Point to Point
Frage 34
Frage
How many characters per second are transmitted when a serial communication port has the following configuration 7, N, 1, 2400 Baud?
Antworten
-
230 CPS
-
266.7 CPS
-
333.3 CPS
-
1200 CPS
Frage 35
Frage
What is not part of the EM spectrum?
Antworten
-
Infared
-
Visible
-
Sound
-
Microwaves
Frage 36
Frage
What is a characteristics of UHF?
Antworten
-
Uses Line of Sight
-
Follows the curvature of the earth.
-
is good for long distances.
-
Good for mountainous region.
Frage 37
Frage
What kind of signal does the diagram represent?
Frage 38
Frage
What is the processor in a SCADA RTU responsible for?
Antworten
-
Process Control
-
Trending
-
Error Calculations
-
Process feedback
Frage 39
Frage
What equipment is found at a SCADA host site?
Antworten
-
Printer
-
Flow Computer
-
Control Valve
-
None of the above
Frage 40
Frage
Which one of the below requires SCADA?
Antworten
-
Small Gas Plant
-
Beer Factory
-
Pipe Line
-
Pump Shack
Frage 41
Frage
Why do we need SCADA systems?
Antworten
-
To connect remote processes with great distances between them.
-
We don't.
-
To provide secure digital transfer of communication.
-
To provide clear guidelines for remote communication.
Frage 42
Frage
Custody transfer when referring to a SCADA system represents what being traded?
Antworten
-
Data Values
-
Accounting Information
-
Commodities
-
D
Frage 43
Frage
What is needed for a PLC to function?
Antworten
-
A rack, controller module, power supply, I/O modules, and configuration software.
-
A rack, controller module, HMI, I/O modules, and configuration software.
-
A rack, UPS Systems, I/O modules, and configuration software.
-
I/O modules, and configuration software.
Frage 44
Frage
What is the proper procedure for making changes to PLC programming?
Antworten
-
Upload program, save old program, make changes, and download changes.
-
Delete old program, make changes, and upload new programs.
-
Download program, save old program, make changes, and download changes.
-
Upload program, make changes, download changes, and program.
Frage 45
Frage
Where are configuration and control programs stored in case of power failure?
Frage 46
Frage
What would FBD be used for?
Frage 47
Frage
A process needing analog control and discrete control would use what langauges
Antworten
-
Ladder/FBD
-
SFC
-
Structured Text
-
C/C++
Frage 48
Frage
What language is best for batch control?
Frage 49
Frage
What is not an IEEE 61120 language?
Antworten
-
Function Block Diagrams
-
Machine List
-
Ladder Diagram
-
Structured Text
Frage 50
Frage
Two PLC's are conncted using RS-232, What topology is this?
Antworten
-
Master / Slave
-
Star
-
Peer to Peer
-
Bus
Frage 51
Frage
What should be considered when updating the PLC Software Version?
Antworten
-
Hardware and Software versions are the same number.
-
Software is compatible with field devices.
-
Software is compatible with hardware.
-
Software is functioning correctly prior to updating.
Frage 52
Frage
What FB Value should be connected to the PV of this function block?
Antworten
-
The input of the analog output function block
-
The output of the analog output function block
-
The output of the analog input function block
-
The input of the analog input function block
Frage 53
Frage
What is the proper procedure to repair broken equipment?
Antworten
-
Inform operations, put loop in manual, make repairs, and commission loop.
-
Inform operations, make repairs, put loop in manual, and commission loop.
-
Make repairs, commission loop, and inform operations.
-
Make repairs, inform operations, put loop in manual, and commission loop.
Frage 54
Frage
When forcing logic in a PLC what precautions need to be taken?
Frage 55
Frage
In the following structured text statement what will be used to finish the calculation?
Var1 = (Input, Integer)
Var2 = (Internal, Real)
Var3 = (Output, Integer)
Var4 = (Output, Real)
Var5 = (Internal, Integer)
Var6 = (Input, Real)
SUM = (Internal, Real)
SUM:=5.0 + _____
Antworten
-
Var1
-
Var2 Only
-
Var2 and 6
-
Var3
Frage 56
Frage
The following RTU needs to execute a sequential function chart program light is initially off. When the start button is pressed light comes on. Light stays on for 2.5 Seconds. Once light turns off wait for start button to be pressed again. Which program will accomplish this task correctly?
Frage 57
Frage
When installing several devices that are too far away from the PLC, what must you also install?
Frage 58
Frage
When there is a need to trend values what component of a DCS needs to be added?
Antworten
-
RAM
-
Extra memory
-
A data historian
-
A register
Frage 59
Frage
Why do we use redundancy in a DCS System?
Frage 60
Frage
What happens in a DCS with redundant controllers if the main controller fails?
Antworten
-
Second Controller automatically takes over.
-
The changeover process begins.
-
The system is placed into manual until the changeover is complete.
-
The system continues to run under the last parameters until the second controller is activated.
Frage 61
Frage
Why do we use redundant cabling in DCS systems?
Antworten
-
For two way communication.
-
For duplex communication.
-
In case one cable breaks.
-
For better transmission quality.
Frage 62
Frage
What is the disadvantage of using the auto tune feature in the DCS?
Antworten
-
There is no disadvantage to using auto tune.
-
Auto tune can sometimes over estimate error resulting in an increased gain.
-
Performance will be low compared to real tuning.
-
It will mask errors in the control scheme.
Frage 63
Frage
When using trending in a DCS for loop tuning what feature is most important?
Frage 64
Frage
What's not a good reason to upgrade software versions of the DCS?
Frage 65
Frage
Why do we have alarm management software?
Frage 66
Frage
Prioritize these alarms from Most to Least critical:
1. Data Communication is broken.
2. PV out of range on Transmitter.
3. Gas Leak.
Antworten
-
2, 3, 1
-
1, 2, 3
-
3, 1, 2
-
2, 1, 3
Frage 67
Frage
What are the main parts of a DCS?
Antworten
-
Control Database, HMI, and Controller
-
HMI and Controller
-
Software, Control Database, HMI, and Controller
-
Control Database, HMI, Rack, and Controller
Frage 68
Frage
What is the procedure for making changes to to a DCS configuration?
Antworten
-
Upload program, Download configuration changes, Verfiy changes.
-
Upload program, Download full configuration, Verfiy changes.
-
Download program, Make configuration changes, Verfiy changes, Upload Program.
-
Download program, Verfiy changes, Make configuration changes, Upload Program.
Frage 69
Frage
What access level must you have to make changes to a DCS configuration?
Antworten
-
Operator
-
Administrator
-
Manager
-
Technician
Frage 70
Frage
What are the main components of a VSD?
Antworten
-
Signal Booster, Filter, Inverter
-
Filter, Converter, Inverter
-
Rectifier, Filter, Converter
-
Rectifier, Filter, Inverter
Frage 71
Frage
If a VSD has a 4-20 mA input and is controlled from 1800 to 3600 rpm, What will the speed be if the input is 8mA?
Antworten
-
2000 rpm
-
2250 rpm
-
2550 rpm
-
3000 rpm
Frage 72
Frage
What is not the purpose of an HMI?
Antworten
-
To enable us to interact with a computer program.
-
To directly control the process.
-
To program and configure the controller.
-
To view operations of the plant.
Frage 73
Frage
What type of program must be used to develop an HMI for use on a monitor?
Frage 74
Frage
How do you connect an HMI to a different manufacturer's controller?
Antworten
-
Router
-
I/O Servers
-
Device Drivers
-
Modem
Frage 75
Frage
What is pre-cut column used for?
Antworten
-
To separate carrier gas from sample.
-
To separate carrier gas from oxygen
-
To alter the column paths
-
To remove impurities before main column
Frage 76
Frage
How is concentration determined from a chromatogram?
Antworten
-
Peak height
-
Peak area
-
Elution Time
-
None of the above.
Frage 77
Frage
What will happen to an IR Analyzer detector as IR passes through the sample?
Frage 78
Frage
Describe the function of a Peltier Cooling Device.
Antworten
-
RTD attached to power supply.
-
Thermistor attached to power supply.
-
Heater connected to power supply.
-
Thermocouple attached to power supply.
Frage 79
Frage
What is the difference between a GC and an LC?
Antworten
-
Mobile Phase
-
Stationary Phase
-
Column
-
None of the above.
Frage 80
Frage
Florescence is what kind of analysis
Antworten
-
Absorbance
-
Transmittance
-
Secondary Emissions.
-
Reflection
Frage 81
Frage
NO + O3 -> NO2 and infared radiation is what kind of reaction?
Antworten
-
Chemiluminescence
-
Bioluminescence
-
Chemical
-
Ionic
Frage 82
Frage
How to measure total oxides of Nitrogen?
Antworten
-
Multiply Nitrogen by detector response.
-
Catalytic conversion of all NOx to NO.
-
Change detector to measure different types of NOx.
-
None of the above.
Frage 83
Frage
The chopper in a combined beam IR analyzer does what?
Antworten
-
Alternates IR to the sample and references.
-
Simultaneously blocks all IR into the detector.
-
Reflects IR into the reference.
-
Reflects IR into the sample.
Frage 84
Frage
What does a Mass Spectrometer separate components into and measure?
Antworten
-
Ions according to their mass to charge ratio.
-
Molecules according to size.
-
Ions according to mass.
-
Ions according to charge.
Frage 85
Frage
Alberta workplace hazardous protection values for H2S and CO are only given in 1 and 24 hour exposure limits. Why?
Antworten
-
If you are exposed to it for a year you are dead anyway.
-
Both are heavier than air so they can't be breathed in.
-
They will be scrubbed out by acid rain.
-
These substances get oxidized into the atmosphere and convert to SO2 and CO2.
Frage 86
Frage
What accuracy of analyzers must be used to monitor ambient concentrations of SO2, NO, H2S?
Antworten
-
PPM and PPB detectors
-
% Concentration
-
PPT Analyzer
-
All are acceptable.
Frage 87
Frage
When performing maintenance planning what reduces downtime the most?
Antworten
-
Preventive / Reactive
-
Preventive / Predictive
-
Reactive / Predictive
-
Reactive / Preventative
Frage 88
Frage
When stocking parts what needs to be considered?
Frage 89
Frage
What are KPI's used for?
Frage 90
Frage
In order to sign off on a specific task what must the apprentice do?
Antworten
-
Demonstrate competency in the task.
-
Observe the task being done.
-
Take an exam and pass.
-
Have an authorized journeyman sign off.
Frage 91
Frage
Who makes the trade outline?
Frage 92
Frage
What does a red seal do?
Frage 93
Frage
A sample loop replaces?
Antworten
-
Sample Port
-
Fast Loop
-
Sample System
-
All of the above
Frage 94
Frage
What light source is required for chemiluminescence?
Antworten
-
A Bio-light source.
-
No light source is needed it is the result of a chemical reaction.
-
A high molecular energy fluid and a catalyst.
-
It is an unexplained chemical phenomena.
Frage 95
Frage
What are two similar types of process?
Frage 96
Frage
A wavelength passed through a prism is an example of?
Antworten
-
A rainbow
-
Refraction
-
Detraction
-
Reflection
Frage 97
Frage
What are Modicon addresses?
Antworten
-
Channels
-
IP
-
Frequency
-
Bits
Frage 98
Frage
How many slaves are available on Modbus?
Frage 99
Frage
An Allen Bradley PLC is addressed by?
Antworten
-
Rack, Group, Terminal
-
Card, Tag, Terminal
-
Rack, Card, Controller
-
Terminal, Rack, Group
Frage 100
Frage
An Allen Bradley PLC's Input terminal LED shows?
Antworten
-
Input Voltage
-
Output Voltage
-
Bits
-
Reading in %
Frage 101
Frage
MOORE controller symbol means what?
Frage 102
Frage
Data communication going only going 1 way to a remote station to a local station, What type of communication does this represent?
Antworten
-
TCP/IP
-
Simplex
-
Duplex
-
Bus
Frage 103
Frage
A P only controller offset is reduced by?
Frage 104
Frage
In an Allen Bradley PLC how large is a T timer?
Antworten
-
3 words, 16bits/word, 48 bits total
-
2 words, 24 bits/word 48 bits total
-
5 words, 16 bits/word, 80 bits total
-
4 words, 32 bits/word, 128 bits total
Frage 105
Frage
When SCADA is using Satellite communication it is called?
Antworten
-
Geo-oriented
-
RTU
-
Geosynchronous
-
Real time
Frage 106
Frage
What are the frames or boundaries of a Synchronous data stream?
Antworten
-
Preamble and Postamble
-
Precomm and Postcomm
-
Buffer and Render
-
Leader and Tail
Frage 107
Frage
What is the first bit after the start bit on Asynchronous communication, RS232?
Antworten
-
Most Significant Bit (MSB)
-
Least Significant Bit (LSB)
-
Mean Significant Bit (MSB)
-
Lead Significant Bit (LSB)
Frage 108
Frage
This diagram is called?
Antworten
-
DTE to DCE known as a Null Modem
-
DTE to DTE known as a Null Modem
-
DTE to DTE known as a Crossover Cable
-
DTE to DCE known as a Crossover Cable
Frage 109
Frage
Where is the rectifying section?
Frage 110
Frage
What is reflux ratio?
Frage 111
Frage
What is ¼ amplitude decay?
Antworten
-
When the first overshoot is less than the second by a factor of 4.
-
When the first overshoot is greater than the second by a factor of 4.
-
When the overshoot is eliminated in 4 waves.
-
When the peak decreases by 1/4 of its height in through each wave.
Frage 112
Frage
What is a self regulating process?
Antworten
-
A process without a controller.
-
When the set point is moved the system will stabilize on its own.
-
A process that cannot be changed through operator intervention.
-
A process without a controlled variable.
Frage 113
Frage
What is the most difficult process aspect to control?
Antworten
-
Dead Time (Lag)
-
Error
-
Upsets
-
Measurement
Frage 114
Frage
What does a control valve control?
Antworten
-
The manipulated variable
-
The measured variable
-
Flow
-
Pressure
Frage 115
Frage
What is represented by the slope of a reaction curve?
Frage 116
Frage
What is the definition of Shrink in a boiler system?
Antworten
-
Decrease in steam flow
-
Increase in steam flow
-
Pressure Increase
-
Temperature Loss
Frage 117
Frage
What government agency sets safety standards?
Frage 118
Frage
What happens if the differential pressure (∆P) increases in a distillation tower?
Antworten
-
Trays will flood
-
Tower will empty
-
Tower is plugged
-
Nothing
Frage 119
Frage
What causes dry trays in a distillation tower?
Frage 120
Frage
A UV analyzer measures?
Frage 121
Frage
What does OSI (Open System Interconnection) do?
Antworten
-
Provides manufacturer's with strict guidelines for communication
-
Networks all communications
-
Nothing
-
Converts all signals to one standard langauge
Frage 122
Frage 123
Frage
Selective control is used for?
Antworten
-
Protection of equipment according to safety standards
-
To reduce error in rapid processes
-
To stop reset windup
-
For cascade systems with multiple slaves
Frage 124
Frage
What is the solid packing in a Gas Chromatograph is used for?
Antworten
-
Provides an Inert surface
-
To extend column life
-
To remove toxins that may poison the sensor
-
To reinforce columns from wear and velocity of the medium
Frage 125
Frage
A sample probe should be placed where in the pipe?
Frage 126
Frage
What language does a SFC (Sequential Function Chart) use?
Antworten
-
Graphical
-
Text (Word)
-
Function Block
-
HTML
Frage 127
Frage
C programming uses?
Antworten
-
Assembler
-
Compiler
-
Builder
-
Programmer
Frage 128
Frage
How does an Allen Bradley PLC communicate to different modules?
Frage 129
Frage
Dirty windows block?
Frage 130
Frage
What type of communication does Baseband use?
Antworten
-
Digital
-
Analog
-
Serial
-
Virtual
Frage 131
Frage
Cross limiting fuel control is used for what?
Antworten
-
Ensures excess air to prevent negative pressure in the firebox
-
To optimize the burner efficiency
-
Optimize fuel to additive ratio and maximize profits
-
Ensures excess air to prevent positive pressure in the firebox
Frage 132
Frage
Where does signal from a steam signal controller boiler on a multi capacity system go?
Frage 133
Frage
How do you tune a hi-capacity tank?
Frage 134
Frage
What is the definition of Ratio?
Frage 135
Frage
Use R=Ro(SPANw)/SPANc to solve ratio question?
Ro = 5
SPANw = 350
SPANc = 1400
Frage 136
Frage
What is a valve positioner equivalent to?
Antworten
-
Cascade Control
-
Signal Booster
-
I/P
-
SMART controller
Frage 137
Frage
Benefits of cascade control?
Frage 138
Frage
Typical flow controller will have what settings?
Antworten
-
0.5 Gain and a 0.05min/rpt, PB of 2
-
5 Gain and a 0.05min/rpt, PB of 10
-
1 Gain and a 2min/rpt, PB of 2
-
2 Gain and a 0.75min/rpt, PB of 3
Frage 139
Frage
A PID controller will work best on what type of process?
Frage 140
Frage
What is the difference in types of mass spectrometers?
Antworten
-
Analysis time
-
How they separate ions
-
Gas or Liquid Phase
-
Source method
Frage 141
Frage
What does the manifold do in a Mass Spectrometer?
Antworten
-
Separates components
-
Filters out dangerous components
-
Protects the unit from High Pressures and Temperatures
-
Provides different process connections
Frage 142
Frage
What does the length of a cell represent?
Frage 143
Frage
Modbus communicates in?
Frage 144
Frage
Differential Signal communication is?
Antworten
-
Variable
-
Balanced
-
Active
-
A Two Emitter system
Frage 145
Frage
Parallel fuel and air does not?
Frage 146
Frage
What type of boiler control uses large steam capacity in relation to it’s drum capacity?
Antworten
-
3 Element
-
Dual Element
-
Double Drum
-
Tandem Boilers
Frage 147
Frage
What is the Hayes command to a modem?
Frage 148
Frage
Output tracking is?
Frage 149
Frage
In Feed forward control what must occur?
Antworten
-
Continuous computing
-
Output tracking
-
Cascade control
-
Redundant controllers
Frage 150
Frage
PI Controller with a prolonged error is said to be?
Frage 151
Frage
Mass spectrometers operate on?
Antworten
-
High temperature and high vacuum
-
Low temperature and low pressure
-
High temperature and low vacuum
-
Low temperature and high pressure
Frage 152
Frage
Liquid level or gas pressure, which is noisier?
Antworten
-
Liquid level, non-compressible
-
Gas pressure, high energy
-
Both are noisy
-
Both are not noisy
Frage 153
Frage
What is the qualitative output from a Chromatograph?
Antworten
-
Retention Time
-
Elution Time
-
Peak Height
-
Peak Area
Frage 154
Frage
What is the qualitative output from a Mass Spectrometer?
Antworten
-
Frequency
-
Charge
-
Time of flight
-
Flow Rate
Frage 155
Frage
What is the qualitative output from a Gas Chromatograph?
Antworten
-
Elution Time
-
Retention Time
-
Peak Height
-
Peak Area
Frage 156
Frage
A permeation tube is filled with?
Antworten
-
Sample under pressure
-
Air
-
Inert Gas
-
Nitrogen
Frage 157
Frage
What does precut do?
Antworten
-
Gets rid of the heavy component of contamination
-
Removes erroneous readings present at start up
-
Provides a representative sample for configuration
-
Allows the senor time to stabilize prior to the next reading
Frage 158
Frage
Where is PID executed in a DCS?
Frage 159
Frage
Allen Bradley looks at what when considering a function?
Antworten
-
A table
-
A matrix
-
An index
-
The final value
Frage 160
Frage
Self regulating process with a step change give what output?
Frage 161
Frage
What is the range given -20 to 50°C?
Antworten
-
70
-
30
-
50
-
Depends on the sensor
Frage 162
Frage
What is the problem if reset windup is present in a non-select controller in a selective system?
Antworten
-
The wrong tieback
-
The wrong controller is the Master
-
Too much integral applied on the slave
-
Too much derivative applied on the Master
Frage 163
Frage
What does the “Operating license” in analyzers tell you?
Frage 164
Frage
Where can you use a median selector?
Frage 165
Frage
Where is the highest gain on a square root extractor?
Frage 166
Frage
In a cascade flow loop the 2nd loop oscillates when?
Antworten
-
High Flow
-
Low Flow
-
High Pressure
-
Low Pressure
Frage 167
Frage
If step change is introduced into a single capacity process, what is the output?
Antworten
-
Exponential
-
Logarithmic
-
Linear
-
Equal %
Frage 168
Frage
What does a positive matrix have?
Frage 169
Frage
What precautions do you take with a UV source?
Antworten
-
Life span of a UV source is short
-
Sensor contamination from external sources
-
Poisoning from external light
-
Flammable
Frage 170
Frage
What does an IR chopper do?
Antworten
-
Sets frequency of the analyzer
-
Checks the sensor has not become saturated
-
Used to block the measuring and the reference beams alternatively
-
None of the above
Frage 171
Frage
Fluorescence analyzer does what?
Antworten
-
Ambient SO2
-
Ambient NOx
-
Various gases
-
LEL & UEL
Frage 172
Frage
With a 9 psi signal and a ratio of 1.4, what is the output?
Frage 173
Frage
Where are FCO and Function Blocks stored in a MOORE controller?
Antworten
-
EPROM
-
EEPROM
-
Microprocessor
-
Flash memory
Frage 174
Frage
How do you de-couple?
Antworten
-
Remove multiple controller interaction
-
Open the loop
-
Eliminate the Master measured variable
-
Add an additional controller
Frage 175
Frage
What is ratio control?
Antworten
-
One measured variable is being controlled by the ratio of another measured variable
-
One measured variable is being controlled by the ratio of another controlled variable
-
One controlled variable is being controlled by the ratio of another measured variable
-
One controlled variable is being controlled by the ratio of another controlled variable
Frage 176
Frage
What is the difference between SCADA and DAS?
Antworten
-
DAS is information collection only
-
SCADA requires a satellite connection
-
DAS is limited by 2 GB of memory
-
SCADA requires an external power supply
Frage 177
Frage
What is a HART transmitter operating in when connected on a multidrop?
Antworten
-
Digital
-
Analog
-
Control
-
Reader
Frage 178
Frage
Exception reporting does what?
Antworten
-
List non-compliant equipment
-
Reduces communication requirements
-
Explains changes and modifications to the plant layout
-
None of the above
Frage 179
Frage
What are the serial ports called or alternate names for DTE’s?
Antworten
-
Com 1, 2, and 3
-
Com 4, 5, and 6
-
Com 1, 5, and 6
-
Com 2, 3, and 6
Frage 180
Frage
What is the factor of Dead time?
Frage 181
Frage
What is the problem or disadvantage with P-Only control?
Frage 182
Frage
What is the purpose of Derivative?
Antworten
-
Derivative is used for a multi-capacity system
-
Derivative is used for a single capacity system
-
Derivative is used for a first order process
-
Derivative is used to reduce dead time
Frage 183
Frage
A stationary liquid column in a GLC does what?
Frage 184
Frage
What is effective dead time?
Antworten
-
Actual Dead Time
-
Theoretical Dead Time
-
Calculated Dead Time
-
dT
Frage 185
Frage
What is the definition of feedback control?
Antworten
-
An error driven control system in which the control signal to the actuators is proportional to the difference between the command signal and a feedback signal from the process variable being controlled.
-
Data extracted from the process reaction is used to calculated the next response
-
Error is monitored through the "downstream" reaction
-
Additional measurement after the FCE is used to calculate the controller response
Frage 186
Frage
How does an Allen Bradley PLC read?
Antworten
-
One rung at a time, top to bottom, left to right
-
One rung at a time, bottom to tom, left to right
-
One rung at a time, top to bottom, right to left
-
All rungs at once, top to bottom, left to right
Frage 187
Frage
What is a Yagi antenna used for?
Antworten
-
A Yagi antenna is a unidirectional antenna commonly used in communications when the frequency is above 10Mhz
-
A Yagi antenna is a multidirectional antenna commonly used in communications when the frequency is above 10Mhz
-
A Yagi antenna is a unidirectional antenna commonly used in communications when the frequency is below 10Mhz
-
A Yagi antenna is a multidirectional antenna commonly used in communications when the frequency is below 10Mhz
Frage 188
Frage 189
Frage
What is the QAD damping factor?
Antworten
-
Amplitude 1/Amplitude 2 ( 180 degrees out of phase)
-
Amplitude 1/Amplitude 2 ( 360 degrees out of phase)
-
Amplitude 2/Amplitude 1 ( 180 degrees out of phase)
-
Amplitude 1/Amplitude 4 ( 1080 degrees out of phase)
Frage 190
Frage
What is the QAD decay ratio?
Antworten
-
Amplitude 2/Amplitude 1 (360 degrees out of phase)
-
Amplitude 1/Amplitude 2 (180 degrees out of phase)
-
Amplitude 4/Amplitude 1 (1080 degrees out of phase)
-
Amplitude 2/Amplitude 1 (180 degrees out of phase)
Frage 191
Frage
What are the two feed forward process measurements required?
Frage 192
Frage
How is a smart transmitter connected to a DCS?
Antworten
-
Through the Field bus
-
Through the Profi bus
-
HART
-
Modbus
Frage 193
Frage
Controller configurations are uploaded to?
Antworten
-
Controller to PC
-
Controller to PLC
-
Controller to DCS
-
Controller to SCADA
Frage 194
Frage
What is a precaution when dealing with UV radiation?
Frage 195
Frage
What type of detectors do Gas chromatographs normally use?
Frage 196
Frage
What state would the secondary flow loop in a cascade loop be?
Antworten
-
It would have a square root extractor and it would oscillate at high flow due to the high gain at high flow of the extractor
-
It would have a square root extractor and it would oscillate at low flow due to the high gain at low flow of the extractor
-
It would oscillate at high temperature due to high gain
-
It would oscillate at high pressure due to low gain
Frage 197
Frage
Tuning using the ultimate gain method the integral setting?
Frage 198
Frage
What signifies High Level programming langauges?
Antworten
-
English words (Like “C”)
-
Multiple outputs
-
Live fucntioning
-
Configurable systems
Frage 199
Frage
Attenuation methods in fiber optics?
Antworten
-
Scattering, absorption, bending and connection
-
Poisoning, absorption, bending and connection
-
Scattering, adsorption, bending and connection
-
Absorption, bending and connection
Frage 200
Frage
Fuzzification is ...
Antworten
-
The first step in a fuzzy interfering process
-
When a signal becomes fuzzy (Erratic)
-
When the control output is changed before being actuated
-
All of the above