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GIS > FINALS > Flashcards

FINALS Flashcards

1
Q

What is UAV?

A

Unmanned Aerial Vehicle

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2
Q

What is RPA?

A

Remotely Piloted Aircraft System

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3
Q

What is CAAP?

A

Civil Aviation Authority of the Philippines

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4
Q

They responsible for implementing policies on civil aviation to ensure safe, economical, and efficient air travel.

A

Civil Aviation Authority of the Philippines

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5
Q

According to CAAP this is an unmanned aircraft which is piloted from a remote pilot station.

A

RPA

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6
Q

According to CAAP this is an unmanned aircraft, its associated pilot stations, the required command and control links and any other components.

A

RPA System

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7
Q

RPA with 7 kg

A

Large RPA

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8
Q

RPA with a weight below 7 kg such as recreational drones

A

Small RPA

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9
Q

Commercial (revenue) purposes of UAV

A

Aerial surveys
Cinematography
Industrial
Agriculture

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10
Q

Non-commercial porpuses of UAV

A

Recreational aerial photo
Academic and research and development
Extension activities
Gov’t activities
Rescue operation

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11
Q

Types of UAV based on design

A

Rotor based drones
Fixed wing drones

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12
Q

Type of UAV used for recreational and aerial photography and most popular drones in PH such as DJI model

A

Rotor based drones

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13
Q

A type of UAV that is made up of light material with wide coverage, suitable for surveying and mapping

A

Fixed wing Drone

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14
Q

What are the applications of UAV in the field of agriculture and forestry?

A

Land use
Tree inventory
Irrigation management
Livestock monitoring

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15
Q

What are the applications of UAV

A

Inspection shipping and delivery
Search and rescue operation
Monitoring safety surveillance

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16
Q

A policy saying that the RPA shall stay clear of populated area unless an
approval from the CAAP has been granted and no person may operate an RPA in a controlled or prohibited airspace unless authorized by the Authority

A

MC No. 29-15 Series of 2015
(CAAP)

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17
Q

A policy saying that RPA should not exceed 400 ft above ground level.

A

MC No. 29-15 Series of 2015
(CAAP)

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18
Q

A policy saying that no person may use RPA in commercial operation unless RPA Controller Certificate is obtained and no person may use Large RPAs in non-commercial
operations unless RPA Controller Certificate is obtained

A

MC No. 29-15 Series of 2015
(CAAP

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19
Q

A policy saying that all RPA used for commercial operations are required to be registered with the Authority
regardless of weight and non-commercial Large RPA shall be duly registered with the Authority

A

MC No. 29-15 Series of 2015

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20
Q

What certificate will an RPA of 150 kg and above will secure?

A

Special certificate of airworthiness (SCA) or Experimental Certificate

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21
Q

According to MC No. 29-15 Series of 2015, RPA controller doing non-commercial operations may operate an RPA only within ________ ___ __ _____.

A

Visual Line of Sight

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22
Q

An Ordinance Regulating the Ownership and Operation of UAV in the province of Benguet

A

Provincial Ordinance no. 18-232

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23
Q

According to PO No. 18-232, what is the proper age to own or operate a UAV?

A

atleast 14 (with parents) and 18 above

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24
Q

A policy that states any person conducting a drone operation shall
obtain permission from the owner/s of the property for launching and/or landing

A

PO No. 18-232

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25
Q

How much is the penalty in PO No. 232?

A

1 year imprisonment or fine not exceeding to 5000

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26
Q

What are the GIS operations used to manipulate spatial data?

A

GIS processes
Geoprocessing tools

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27
Q

It refers to the capabilities offered by particular GIS software in coming up with the desired map output including the meaningful results of data analysis and inter-operable functions that will get you there.

A

GIS Processes

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28
Q

It is a framework and set of tools for the processing geographic and related data.

A

Geoprocessing

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29
Q

A process of applyingg an operation (with a tool) to manipulate an input in GIS Dataset

A

Geoprocessing

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30
Q

The input dataset is processed in geoproccessing tools then it will become a ________ ______

A

New dataset

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31
Q

The cookie cutter

A

Clip

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32
Q

Geoprocessing tools

A

Extraction tools
Combination tools
Simplification tools
proximity tools

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33
Q

What are combination tools?

A
  1. union
    2.Intersect
  2. Merge/append
    4.Spatial Join
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34
Q

What are the extraction tools?

A

Clip
Erase

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35
Q

Buffer is under what tool?

A

Proximity tools

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36
Q

T/F. Dissolve is a simplification tool

A

True

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37
Q

This tool cuts out a piece of one feature class using one or more of the features in another feature class
as a cookie cutter.

A

Clip

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38
Q

What properties will be modified after the clipping operation?

A

Area or length of the feature.

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39
Q

The Clip Features can be ______, ______, and _________, depending on the Input Features type.

A

Points, lines and polygons

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40
Q

When clipping line features with line
features, only the …

A

coincident lines or line segments are written to the output

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41
Q

When clipping point features
with point features, only the …

A

coincident points are written to the output

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42
Q

When clipping point features
with line features, only the …

A

points that are coincident with the line features are written to the output.

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43
Q

This operation combines features of an input theme with the polygons from an overlay theme to produce an output theme that contains the attributes and the full extent of both themes.

A

Union

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44
Q

This operation cuts an input theme with the features from an overlay theme to produce an output theme with features that have an attribute
data from both themes.

A

Intersect

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45
Q

When intersecting features of the input theme with the polygons of the overlay theme what will happen to the attribute table?

A

Attribute table will also be updated, merge the both data

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46
Q

This tool convert two or more adjacent themes with similar attributes into a single theme

A

Merge

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47
Q

It appends the features of two or more themes into a single theme. Attributes will be retained if they have the same name.

A

Merge

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48
Q

It combine datasets from multiple sources into a new, single output dataset. All input datasets must be of
the same type.

A

Merge

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49
Q
A
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50
Q

This tool does not support raster datasets.

A

Merge

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51
Q

It joins attributes from one feature to another based on the spatial relationship.

A

Spatial join

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52
Q

The target features and the joined attributes from the join features are
written to the _____ ____ ____.

A

Output feature class

53
Q
A
54
Q

It is the process of simplifying an input theme into a single polygon.

A

Dissolve

55
Q

It is making a zone of specified distance around features.

A

Buffer

56
Q

It involves the integration of multiple
data layers. It can be vector-based or raster-based.

A

Overlaying operations

57
Q

the process of integrating different data layers to be joined physically, thus linking data of different themes or layers.

A

Overlay

58
Q

It is the process of assigning weights in different records of different thematic maps to lace/identify areas of interest in raster maps.

A

Weighted Overlay Method

59
Q

the mapping and analysis of
constraints and opportunity areas

A

Sieve mapping

60
Q

It involves data queries performed
on georeferenced information to answer questions like how far, where, what is in, how many is in types of questions.

A

Spatial Analysis

61
Q

It involves weeding or reduction of coordinates

A

Coordinate thinning

62
Q

converting raster image to vector features using digitizing techniques /computer-assisted software and tools.

A

Vectorization

63
Q

converting vector data to raster by using scanning tools

A

Rasterization

64
Q

it involves 3D modeling of a quantitative feature of a landscape

A

DEM/DTM Digital Elevation Modelling or Digital Terrain Modelling

65
Q

analysis that uses the concept
of buffer and setbacks.

A

Proximity analysis

66
Q

Example of proximity questions.

A

How many houses lie within 100 m of this main water source?
What is the total number of customers within 10 km of this store?

67
Q

What will GIS use to answer proximity questions?

A

It will use buffering to determine the proximity relationship between features

68
Q

the ability to perform queries and then analyze those queries.

A

Query and analysis

69
Q

What is the heart of GIS?

A

the analytical capabilities of the system

70
Q

the process of appending a table with another table from a different data source that contains a common field.

A

Joining

71
Q

the process of extracting information
from an existing raster data sets by relabeling the data.

A

Reclassification

72
Q

if (population >10,000) and (Accessibility < 10) and
(Land Value <12,000)

A

It is suitable

73
Q

the procedure of reconciling the positions of corresponding features in different data layers. This occurs when two themes having same feature have different boundaries (does not match) when overlaid,
thus small sliver polygons are removed in order to come up
with a common boundary.

A

Conflation/ Sliver removal

74
Q

the procedure to adjust the position of feature that extends across typical map sheet boundaries .

A

Edge matching

75
Q

involves stretching one data layer to meet another layer based on pre-defined control points of known location. It is the process of registering a data layer to a common coordinate scheme or to a standard
data layer that is already registered

A

Rubber sheeting/Geometric Transformation

76
Q

transforming three-dimensional space into a two-dimensional map.

A

Projection

77
Q

the transformation of data in geographic coordinates from an existing map projection into another
projection.

A

Map Projection Transformation

78
Q

transforming a two-dimensional
map into a three-dimensional space.

A

Reprojection

79
Q

the process of inputting or encoding
geographic features from a hard copy map to convert it to an electronic file (digital file) .

A

Digitizing

80
Q

the ability to display data , maps and
information about the map.

A

Visualization

81
Q

the process of capturing printed data to digital format in raster based model.

A

Scanning

82
Q

creating a map output (usually for printing or sharing purposes) from your digitized/edited map.

A

Layout

83
Q

it refers to the correction of errors that arise during the encoding of
spatial and non-spatial data.

A

Data editing and verification

84
Q

it involves addition, deletion, movement and changes in the geographic position of the feature.

A

Interactive Graphic Editing

85
Q

It involves cleaning up of topological errors earlier identified, like snapping of elements such as nodes and arcs.

A

Interactive Graphic Editing

86
Q

What does GNSS stands for?

A

Global Navigation Satellite System

87
Q

a general term describing any satellite constellation that provides positioning, navigation, and timing
(PNT) services on a global or regional basis.

A

GNSS

88
Q

Consists of networks of satellites that orbits the Earth and emit signals that can be used to determine a user’s location and timing information.

A

GNSS

89
Q

They are commonly used for navigation and tracking, such as cars, boats and planes

A

GNSS

90
Q

What are the different GNSS?

A
  1. The NAVSTAR (Navigational System with Time and Ranging
  2. GLONASS
    3.Galileo
    BeiDou Navigation Satellite System (BDS)
  3. NavIC Navigation Indian Constellation
  4. Quasi-Zenith Satellite System (QZSS)
91
Q

Who and when is NAVSTAR invented?

A

1994 by Roger L. Easton9

92
Q

Who and when is GLONASS invented?

A

owned by Russian Federation system with 24 satellites

93
Q

Who and when is Galileo invented?

A

2016, operated by European Union

94
Q

Who and when is BDS invented?

A

2020, operated by the People’s Republic of China with 35 satellites

95
Q

Who and when is NavIC invented?

A

2016, owned by Gov’t of India with 7 satellites

96
Q

Who and when is QZSS invented?

A

2018, gov’t of Japan

97
Q

They are primarily used for gathering information about Erath’s surface and its environment. And can b used for weather forecasting, military ops, and map making

A

Earth Observing Satellites

98
Q

When was Diwata 1 launched?

A

March 23, 2016 and deployed to orbit on April 29, 2018

99
Q

A Philippine microsatellite that is also known as PHL-Microsat-1

A

Diwata 1

100
Q

When was Diwata 2 launched?

A

October 29, 2018

101
Q

The first nanosatellite of the Philippines was implemented by UP and DOST.

A

Maya 1

102
Q

What are the first university-built satellites?

A

Maya 3 and 4

103
Q

When was maya 2 launched?

A

February 4, 2021 via Antares rocket

104
Q

What are the different GNSS Segments?

A

Space segment
Control segment
User segment

105
Q

Who developed the NAVSTAR GPS?

A

US Department of Defense. managed by US Air force 50th space wing.

106
Q

In the GPS Constellation. how many time does the satellite orbits the earth?

A

Twice daily or 12 hours to complete 1 revolution

107
Q

It provides position and space at any specific time

A

Ephemeris

108
Q

Their orbit inclinations at 55 degrees to the equator. with Six unique orbital planes with ascending nodes
approximately 60 degrees apart

A

Space segment

109
Q

Four to eight active satellites are typically visible from any unobstructed viewing location on Earth.

A

Space segment of GPS

110
Q

What is the user segment of GPS System?

A

User’s GPS receiver

111
Q

It comes in a variety of formats, from devices integrated into cars, phones, and watches, to dedicated devices such as those shown here from manufacturers Trimble, Garmin and Leica

A

GPS Receivers

112
Q

Receivers can interface with other
devices using …

A

methods including a serial connection, USB or Bluetooth

113
Q

Application of GPS in Forestry Field

A

Inventory
Creation of Digital Elevation Model
Site selection
Mapping
Restoring projects

114
Q

Applications of GPS in civilian purposes

A

Vehicle tracking
Surveying
Telematics
Monito-track-spy

115
Q

Application of GPS in Military purposes

A

GPS integrated to helicopters, tankers etc. is used for navigation, target tracking and search and rescue

116
Q

Sources of GPS signal errors

A

❑Ionosphere and troposphere delays
❑Signal multipath
❑Satellite clock
❑Receiver clock errors
❑Orbital errors
❑Number of satellites visible
❑Intentional degradation of the
satellite signal

117
Q

In this type of error, the GPS system uses a built-in model that calculates an average amount of delay to
partially correct for this type of
error. The main reason of delay is that the satellite signal slows as it passe through the atmosphere.

A

Ionosphere and troposphere delays

118
Q

This occurs when the GPS signal is reflected off objects such as tall
buildings or large rock surfaces before it reaches the receiver that increases travel time

A

Signal multipath

119
Q

caused by the satellite oscillator not being synchronized to true time (GPS time).

A

Satellite clock error

120
Q

essential components that produce a periodic electronic signal.

A

Oscillators

121
Q

1 nanosecond of inaccuracy in a satellite clock results in about ___ __
of error in measuring the distance to that satellite.

A

30 cm

121
Q

T/F. A receiver’s built-in clock is not as accurate as the atomic clocks
onboard the GPS satellites.Therefore, it may have very slight timing errors.

A

TRUE

122
Q

Also known as ephemeris errors, these are inaccuracies of the
satellite’s reported location

A

Orbital Error

123
Q

The more satellites a GPS receiver can see ….

A

the better the accuracy

124
Q

What are the instances that there will be position errors or no position reading at all?

A

Buildings, terrain, electronic
interference
even dense foliage
Indoors
underwater
underground

125
Q

The GPS signal may bounce off nearly objects causing another problem called multi-path interference.

A

Limitations

126
Q

an intentional degradation of the signal once imposed by the U.S. Department of Defense.

A

Selective Availability

127
Q
A
128
Q

It was intended to prevent military adversaries from using the highly
accurate GPS signals and turned off in May 2000

A

Selective Availability

GIS (3 decks)

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