Final Flashcards
What type of sensor is illustrated below?
A capacitance cell
What are the typical measurment units that are used in this device?
differential “wc
The most common components that are usually found in a pneumatic measurment device are:
bellows, flapper/nozzle, force bar, diaphragm
Which of the following is NOT a pressure sensor?
A) reluctance cell
B) capacitance cell
C) piezo-electric cell
D) thermocouple cell [Correct Response]
What type of sensor is shown below?
capacitance
The liquid level in the tank can be found by:
Subtracting the measurement on the tape from the physcial height of the tank
A hydrostatic level measurement can be obtained because:
A vertical column of liquid exerts a pressure on the botom of a column due to gravity
What is this instrument called?
a hydrostatic level transmitter
What type of level measurment device utilizes Archimedes’ Principle?
A Displacer
Temperature is defined as:
measure of the average molecular kinetic energy within a substance.
A process variable is defined as:
the variable that is a part of the process and contributes to its overall characteristic.
The variable that is required to be controlled is called
controlled variable
The target value of the process is called:
the setpoint
An example of a primary sensing element is:
an RTD
A device that converts 3-15 psi to 4-20 mA is called a:
a P/I
The LRV and URV of a process that ranges from -300C to 500C, and represented by a standardized electronic transmitter would be:
4mA= -300C 20mA = 500C
The zero and span for the previous question would be:
zero = -300C span = 800C
What does this symbol represent?
Discrete instrument located on the front of a main control panel
This type of symbol is commonly used to represent:
A shared instrument mounted on a control panel
What does this symbol represent?
A Turbine Meter
What does this symbol represent?
Flanged connection
What does this symbol represent?
A pressure regulator sampling the downstream pressure in the regulator
What type of documentation is used to help an installer electrically connect various instruments together?
loop diagram
A _________________ is used to graphically indicate and schedule tasks and identify a crtical path for a project.
Gantt chart
Which piece of documentation would typically include a Bill of Materials?
Installation drawing
Select the correct description for the following drawing:
Loop 301 is a pneumatic control loop, sending out a 3-15 psig signal to a positioner controlled ball valve.
Where can you typically find a signature block on a drawing?
Near the lower right hand side of a drawing.
Which word describes “ a process where certain molecules from a fluid stream will move onto the surface of a soldi sunstance”
Adsorption
Which of the following does not retain a pressure, in order to move a force bar?
Flapper/Nozzle
What else needs to be known in order to infer accurate level in a storage tank, beside hydrostatic pressure?
Temperature of the fluid
An evaporator…
makes more efficient use of energy if done in stages
Proper fuel flow to a burner of a boiler
requires slightly less fuel than theoretically (stoichiometrically) required
Reciprocating compressors are designed to move
gas a high discharge pressures
A boiler that has the tubes heated on the inside is called
fire tube boiler
What happens to the steam, after it passes through the low pressure stage of a turbine?
It is condensed to water and fed back to the boiler
What gas plant process separtes raw feedstcok into liquids and vapors?
inlet separation
Vacuum distillation can be used for separting:
heavy, low vapor pressure components
Changing bitumen into synthetic crude oil is called:
upgrading
A steam turbine operates on the principle that when:
a heated fluid, under pressure, is allowed to expand it will release energy into the surroundings
The super heater:
increases the efficiency of the HP, IP, LP turbine stages
When we see an increase in heat loss in a boiler turbine, we would see:
a decrease in efficiency due to unrecoverable heat loss
LPGs are:
components of natural gas that are liquids under pressure and separated into propane or butane that is commerically available
Propane used in BBQ would be considered a(n):
LPG
Which symbol would be used to perform a calculation in the field?
C
What is the main difference between Smartplant P&ID and Visio?
Smartplant P&ID is a server, rule based progam; while Visio is a stand alone program
Which of the following drawings show the least amount of material detail?
Functional diagrams
What is a Regulation?
A governmental order having the force of law that contains more information than that Act from which it came
Which of the following rules have legal force, or could be enforced in a court of law?
A pressure relief device for a boiler must be set to open before the pressure in the pressure equipment exceeds the maximum allowable working pressure of the pressure equipment.
What type of documentation is used to take a complex task and reduce it to smaller tasks?
work breakdown structure
What three resource windows are usually shown in Smartplant P&ID?
catalog explorer, properties, and engineering editor
A tag can be created in either the instrument index or wiring module of Smartplant SPI
True
You can size a turbine meter in Smartplant SPI
False
What is the difference between the following two diagrams?
A is a hydrostatic level device; while B is a displacer type
Which of the foolowing is the smallest hydrocarbon molecule?
methane
Natural gas usually have the folowing componets associated with it:
carbon dioxde, hydrogen sulfide, water vapor
Natural gas could produce several acids when combined with
water
LPG stands for:
liquid petroleum gas
Ethanol has a higher boiling point than water
False
What does the following symbol represent?
Distillation column
Which process is described as: d(volume)/dt
found in various pipelines?
flow
What other information is required to convert a volumetric flow rate to a mass flow rate?
density
What does this symbol mean?
Compressor
Which of the following is not a characteristic of Smartplant P&ID?
does not flag inconsistent connection items.
What does this symbol represent?
centrifugal pump
What does this represent?
boiler
What is an example of a device that adds or removes energy from a process?
pump
What type of device allows energy to be transferred form one fluid to another, but will not allow the fluids themselves to interact?
heat exchanger
The only product of value in a combustion reaction is:
Heat
Every unit operation follows this principle:
must have a mass or energy balance
In order for a cable to be connected to a junction box, in SPI, it must first:
have a template in the domain explorer
You have all the process data entered into the calculation module of SPI, except the process line. How would you create it?
Create the line in the process data module
The last thing to do when completing the physical wiring design in SPI is:
cross wire the marshalling panel
If everything is correct in the SPI wiring scheme then the tags will:
propogate from the field devices to the input termianls of the DCS
The following is called a:
Gantt Chart
Task descriptions and Contributors are summarized by
a responsibility chart
Which tag describes the component that is used for basic process control?
FCV-104
What is the purpose of the 3 way solenoid valve,
XV-103?
Will release the air pressure from the piston actuator during an emergency shutdown
What standard symbology mistake do you notice?
the connection symbol between FIT-104 and FE-103 is incorrect.
The circled numbers convey:
quantity and material descriptions as referenced to a Bill of Material list
This diagram illustrates the inter-relationship between cause and effect of the input and output of a physical system and includes various signal types.
Wiring Diagrams
What SPI module or area would you enter I/O information?
the instrument index
What resource is accessed in order to bring various instrument types into the drawing space of Smartplant P&ID?
Catalog Explorer
When you right click on the inconsistencies on the drawings in P&ID, a dialog box shows up that will:
provide information you can use to make a change in the drawing
Which controllers are used to set the reflux ratio?
FC-12 and LC-12
When operating at it’s maximum efficiency, the column will have…
..an established temperature gradient along the length of the tower
What is added to the basic components of a boiler to increase its efficiency?
a superheater
If a river or lake is not available to cool the low pressure exhaust steam, in a boiler system then a(n)______________ can be used
cooling tower
Cooling the exhaust steam will
increase the thermal efficiency of the boiler
Water from the condenser in a power plant boiler system is re-used
True
Condensed water is pre heated by the reheater before it is sent back to the steam drum
True
What type of cable is used to connect a field device to a junction box?
1P#20 B,W I/S
What values can’t be changed in the DCS panel using the properties dialog box?
Tag number
Which DCS terminal analog device, FY-100, be connected to?
one of the A/O terminals
Before we can perform an orifice plate sizing, we need to create the ____________ in SPI, assuming we already have the process data
tag number
What is the system called that constantly checks for high high or low low alarm condions and initiates a pre-determined shutdown?
Safety Instrumented System ( SIS )
What would you investigate, if a tag does not propogate all the way to the DCS system, in SPI wiring, and you know that all the wires have been terminated correctly and the devices are powered up?
check the cross wiring in the marshalling panel
Which item does not belong?
A) specification module
B) process data module
C) engineering editor [Correct Answer]
D) domain explorer
E) reference explorer
F) instrument index
G) calculation module
H) wiring module
Electronic field devices require..
a tag number
Sizing a control valve will produce a
Cv
Orifice plates are manufactured using this data
Beta ratio
This number is required before sizing information can be transferred to a specification sheet.
form number
A method used in project managment; which uses a Gantt chart
Schedule
The project is reduced to smaller, more manageble sections
Work Breakdown Structure
A piece of documentation which relates a task to a particular person
Role and Responsiblity chart
This document is sent to a Vendor for quotation purposes
Specification sheet
An instrument installer would require this piece of documentation.
Installation diagram
This diagram, does not illustrate all components, but is used to convey the overall process in a particular unit
Process Flow Diagram
