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INST 257 > Final > Flashcards

Final Flashcards

1
Q

What type of sensor is illustrated below?

A

A capacitance cell

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2
Q

What are the typical measurment units that are used in this device?

A

differential “wc

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3
Q

The most common components that are usually found in a pneumatic measurment device are:

A

bellows, flapper/nozzle, force bar, diaphragm

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4
Q

Which of the following is NOT a pressure sensor?

A

A) reluctance cell

B) capacitance cell

C) piezo-electric cell

D) thermocouple cell [Correct Response]

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5
Q

What type of sensor is shown below?

A

capacitance

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6
Q

The liquid level in the tank can be found by:

A

Subtracting the measurement on the tape from the physcial height of the tank

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7
Q

A hydrostatic level measurement can be obtained because:

A

A vertical column of liquid exerts a pressure on the botom of a column due to gravity

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8
Q

What is this instrument called?

A

a hydrostatic level transmitter

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9
Q

What type of level measurment device utilizes Archimedes’ Principle?

A

A Displacer

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10
Q

Temperature is defined as:

A

measure of the average molecular kinetic energy within a substance.

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11
Q

A process variable is defined as:

A

the variable that is a part of the process and contributes to its overall characteristic.

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12
Q

The variable that is required to be controlled is called

A

controlled variable

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13
Q

The target value of the process is called:

A

the setpoint

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14
Q

An example of a primary sensing element is:

A

an RTD

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15
Q

A device that converts 3-15 psi to 4-20 mA is called a:

A

a P/I

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16
Q

The LRV and URV of a process that ranges from -300C to 500C, and represented by a standardized electronic transmitter would be:

A

4mA= -300C 20mA = 500C

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17
Q

The zero and span for the previous question would be:

A

zero = -300C span = 800C

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18
Q

What does this symbol represent?

A

Discrete instrument located on the front of a main control panel

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19
Q

This type of symbol is commonly used to represent:

A

A shared instrument mounted on a control panel

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20
Q

What does this symbol represent?

A

A Turbine Meter

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21
Q

What does this symbol represent?

A

Flanged connection

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22
Q

What does this symbol represent?

A

A pressure regulator sampling the downstream pressure in the regulator

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23
Q

What type of documentation is used to help an installer electrically connect various instruments together?

A

loop diagram

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24
Q

A _________________ is used to graphically indicate and schedule tasks and identify a crtical path for a project.

A

Gantt chart

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25
Q

Which piece of documentation would typically include a Bill of Materials?

A

Installation drawing

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26
Q

Select the correct description for the following drawing:

A

Loop 301 is a pneumatic control loop, sending out a 3-15 psig signal to a positioner controlled ball valve.

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27
Q

Where can you typically find a signature block on a drawing?

A

Near the lower right hand side of a drawing.

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28
Q

Which word describes “ a process where certain molecules from a fluid stream will move onto the surface of a soldi sunstance”

A

Adsorption

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29
Q

Which of the following does not retain a pressure, in order to move a force bar?

A

Flapper/Nozzle

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30
Q

What else needs to be known in order to infer accurate level in a storage tank, beside hydrostatic pressure?

A

Temperature of the fluid

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31
Q

An evaporator…

A

makes more efficient use of energy if done in stages

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32
Q

Proper fuel flow to a burner of a boiler

A

requires slightly less fuel than theoretically (stoichiometrically) required

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33
Q

Reciprocating compressors are designed to move

A

gas a high discharge pressures

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34
Q

A boiler that has the tubes heated on the inside is called

A

fire tube boiler

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35
Q

What happens to the steam, after it passes through the low pressure stage of a turbine?

A

It is condensed to water and fed back to the boiler

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36
Q

What gas plant process separtes raw feedstcok into liquids and vapors?

A

inlet separation

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37
Q

Vacuum distillation can be used for separting:

A

heavy, low vapor pressure components

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38
Q

Changing bitumen into synthetic crude oil is called:

A

upgrading

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39
Q

A steam turbine operates on the principle that when:

A

a heated fluid, under pressure, is allowed to expand it will release energy into the surroundings

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40
Q

The super heater:

A

increases the efficiency of the HP, IP, LP turbine stages

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41
Q

When we see an increase in heat loss in a boiler turbine, we would see:

A

a decrease in efficiency due to unrecoverable heat loss

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42
Q

LPGs are:

A

components of natural gas that are liquids under pressure and separated into propane or butane that is commerically available

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43
Q

Propane used in BBQ would be considered a(n):

A

LPG

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44
Q

Which symbol would be used to perform a calculation in the field?

A

C

45
Q

What is the main difference between Smartplant P&ID and Visio?

A

Smartplant P&ID is a server, rule based progam; while Visio is a stand alone program

46
Q

Which of the following drawings show the least amount of material detail?

A

Functional diagrams

47
Q

What is a Regulation?

A

A governmental order having the force of law that contains more information than that Act from which it came

48
Q

Which of the following rules have legal force, or could be enforced in a court of law?

A

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.

49
Q

What type of documentation is used to take a complex task and reduce it to smaller tasks?

A

work breakdown structure

50
Q

What three resource windows are usually shown in Smartplant P&ID?

A

catalog explorer, properties, and engineering editor

51
Q

A tag can be created in either the instrument index or wiring module of Smartplant SPI

A

True

52
Q

You can size a turbine meter in Smartplant SPI

A

False

53
Q

What is the difference between the following two diagrams?

A

A is a hydrostatic level device; while B is a displacer type

54
Q

Which of the foolowing is the smallest hydrocarbon molecule?

A

methane

55
Q

Natural gas usually have the folowing componets associated with it:

A

carbon dioxde, hydrogen sulfide, water vapor

56
Q

Natural gas could produce several acids when combined with

A

water

57
Q

LPG stands for:

A

liquid petroleum gas

58
Q

Ethanol has a higher boiling point than water

A

False

59
Q

What does the following symbol represent?

A

Distillation column

60
Q

Which process is described as: d(volume)/dt

found in various pipelines?

A

flow

61
Q

What other information is required to convert a volumetric flow rate to a mass flow rate?

A

density

62
Q

What does this symbol mean?

A

Compressor

63
Q

Which of the following is not a characteristic of Smartplant P&ID?

A

does not flag inconsistent connection items.

64
Q

What does this symbol represent?

A

centrifugal pump

65
Q

What does this represent?

A

boiler

66
Q

What is an example of a device that adds or removes energy from a process?

A

pump

67
Q

What type of device allows energy to be transferred form one fluid to another, but will not allow the fluids themselves to interact?

A

heat exchanger

68
Q

The only product of value in a combustion reaction is:

A

Heat

69
Q

Every unit operation follows this principle:

A

must have a mass or energy balance

70
Q

In order for a cable to be connected to a junction box, in SPI, it must first:

A

have a template in the domain explorer

71
Q

You have all the process data entered into the calculation module of SPI, except the process line. How would you create it?

A

Create the line in the process data module

72
Q

The last thing to do when completing the physical wiring design in SPI is:

A

cross wire the marshalling panel

73
Q

If everything is correct in the SPI wiring scheme then the tags will:

A

propogate from the field devices to the input termianls of the DCS

74
Q

The following is called a:

A

Gantt Chart

75
Q

Task descriptions and Contributors are summarized by

A

a responsibility chart

76
Q

Which tag describes the component that is used for basic process control?

A

FCV-104

77
Q

What is the purpose of the 3 way solenoid valve,

XV-103?

A

Will release the air pressure from the piston actuator during an emergency shutdown

78
Q

What standard symbology mistake do you notice?

A

the connection symbol between FIT-104 and FE-103 is incorrect.

79
Q

The circled numbers convey:

A

quantity and material descriptions as referenced to a Bill of Material list

80
Q

This diagram illustrates the inter-relationship between cause and effect of the input and output of a physical system and includes various signal types.

A

Wiring Diagrams

81
Q

What SPI module or area would you enter I/O information?

A

the instrument index

82
Q

What resource is accessed in order to bring various instrument types into the drawing space of Smartplant P&ID?

A

Catalog Explorer

83
Q

When you right click on the inconsistencies on the drawings in P&ID, a dialog box shows up that will:

A

provide information you can use to make a change in the drawing

84
Q

Which controllers are used to set the reflux ratio?

A

FC-12 and LC-12

85
Q

When operating at it’s maximum efficiency, the column will have…

A

..an established temperature gradient along the length of the tower

86
Q

What is added to the basic components of a boiler to increase its efficiency?

A

a superheater

87
Q

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

A

cooling tower

88
Q

Cooling the exhaust steam will

A

increase the thermal efficiency of the boiler

89
Q

Water from the condenser in a power plant boiler system is re-used

A

True

90
Q

Condensed water is pre heated by the reheater before it is sent back to the steam drum

A

True

91
Q

What type of cable is used to connect a field device to a junction box?

A

1P#20 B,W I/S

92
Q

What values can’t be changed in the DCS panel using the properties dialog box?

A

Tag number

93
Q

Which DCS terminal analog device, FY-100, be connected to?

A

one of the A/O terminals

94
Q

Before we can perform an orifice plate sizing, we need to create the ____________ in SPI, assuming we already have the process data

A

tag number

95
Q

What is the system called that constantly checks for high high or low low alarm condions and initiates a pre-determined shutdown?

A

Safety Instrumented System ( SIS )

96
Q

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?

A

check the cross wiring in the marshalling panel

97
Q

Which item does not belong?

A

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

98
Q

Electronic field devices require..

A

a tag number

99
Q

Sizing a control valve will produce a

A

Cv

100
Q

Orifice plates are manufactured using this data

A

Beta ratio

101
Q

This number is required before sizing information can be transferred to a specification sheet.

A

form number

102
Q

A method used in project managment; which uses a Gantt chart

A

Schedule

103
Q

The project is reduced to smaller, more manageble sections

A

Work Breakdown Structure

104
Q

A piece of documentation which relates a task to a particular person

A

Role and Responsiblity chart

105
Q

This document is sent to a Vendor for quotation purposes

A

Specification sheet

106
Q

An instrument installer would require this piece of documentation.

A

Installation diagram

107
Q

This diagram, does not illustrate all components, but is used to convey the overall process in a particular unit

A

Process Flow Diagram

108
Q
A

INST 257 (7 decks)

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