WorksheetsBasics of GIS and RS
Total questions: 50
Worksheet time: 38mins
Store Prices
Mapping
Network Services
Urban Planning
How is a globe more accurate than a map?
a globe is a 3 dimensional model of the Earth, but a map is flat
a globe can show streets and roads, but a map cannot
a globe can show all of the continents at once, but a map cannot
a globe can be used to navigate from one town to another, but a map cannot
Maps are the least useful tool in geography.
True
False
Google maps is an example of a GIS.
True
False
What is the most powerful close in GIS?
Power Close
Negative Close
Trial Close
Pros and Cons
Which of the following is not a hardware component of GIS?
A computer screen
GPS coordinates
A plotter
A scanner
By ‘spatial data’ we mean data that has:
Complex values
Location/coordinate values
Graphic values
Decimal values
What is ‘Attribute data’?
Specifies characteristics at that location, natural or human-created
Can be stored in a database table
Both A and B
None of the above
Select all the examples of line data shown in the image.
Arterial Route
Contour Line
Telephone Line
Row of trees
The conventional sign for cultivated land on a topographic map is an example of ...
point data
line data
polygon data
Vector data is easier to store on a computer as it takes less file space.
TRUE
FALSE
Meta data would describe....
who collected a set of data.
how the data was collected.
when the data was collected.
all of the above are true.
Attribute data could be collected via a survey.
True
False
What is GIS in the most encompassing sense?
A software to make maps
System designed to capture, store, manipulate, analyze, manage and present all types of geographic
Application to collect data on the field and store in database
Tool to edit and design maps for visualization
GIS deals with which kind of data
Numeric data
Binary data
Spatial data
Complex data
Key components of 'spatial data' quality include
Positional accuracy
Temporal accuracy
Lineage and completeness
Logical consistency
All of the above
Successful spatial analysis needs
Appropriate software
Appropriate hardware
Competent user
All of the above
In recent years, a GPS has taken place of these maps...
road maps
thematic maps
elevation maps
physical maps
The land areas around the North and South poles appear ________ than they actually are.
Smaller
Larger
What do satellites measure from the Earth-Atmosphere system?
electromagneticradiation
eater
Visible light only
terrains
Healthy vegetation reflects energy in what parts of the electromagnetic spectrum?
Blue and Green
Green and Near-Infrared
Blue and Red
Green and Red
What part of the electromagnetic spectrum can we see with our eyes?
Near-Infrared
Red, Green, Blue
Microwave and radio
Ultraviolet rays
Water appears blue because shorter visible wavelengths (blue) are absorbed more than longer visible wavelengths (green and red) and near-IR radiation.
True
False
Non-polar orbiting satellites do not provide global coverage.
False
True
Passive remote sensing is where instruments emit a signal and the sensor measures what is reflected back.
True
False
What is the relationship between spatial resolution and spatial extent in satellite imagery?
low spatial resolution = greater spatial extent
high spatial resolution = greater spatial extent
What is worlds first Artificial Satellite?
Aryabhatta
Sputnik
Quick Bird
IRS-1
_____ is the collection of data that does not involve physical contact
GPS
Fieldwork
Remote-sensing
Not opening your textbook
_____ is the collection of data that does not involve physical contact
GPS
Fieldwork
Remote-sensing
Not opening your textbook
The two types of remote sensing are ____________ & _____________.
Yogi & Boo Boo
Color & Panchromatic
Passive & Active
Sputnik & GOES
Is our eye a remote sensor?
YES
NO
Which radiometric quantity would be most suitable to measure for sun’s incoming energy ?
Irradiance
Exitance
Radiance
A radiation of wavelength 4 micron falls in which portion of EM spectrum ?
VISIBLE
IR
MICRO WAVE
NONE OF THE ABOVE
Which radiometric quantity would be most suitable to measure for At-sensor ?
Irradiance
Exitance
Radiance
Launching date and year of Landsat 7
April 15, 1999
July 15, 1999
September15, 1999
The first requirement for remote sensing is to have:
An energy source
a sensor
a target
a satellite
Which one is appropriate definition of scale?
The lines on a map representing north-south
A conversion factor used to transform map projections
The ratio of a distance on a map to the corresponding distance on the ground
The lines on a map representing east-west directions
What does 1mm on a map drawn at a scale of 1:50,000 represent on the ground?
500 centimetres
50 centimetres
50 metres
5 metres
Which of the following might be considered as the fourth dimension in Remote Sensing?
Space
Scale
Time
Location
Which one was the first Indian Satellite?
Bhaskara
Cartosat
Resourcesat
Aryabhata
Which is the first Indian Remote Sensing Satellite?
Bhaskara
IRS-1A
Cartosat-1
Resourcesat-1
The distinct advantages of remote sensing are?
Synoptic view
Global coverage
Repeatability
All of the above
Resolution may best be defined as:
The accuracy and precision of the data
The overall quality of a dataset
The smallest feature that can be mapped or measured
The smallest unit or measurement into which data can be disaggregated
In general, Remote Sensing satellites orbit in:
Sun-synchronous
Geostationary
Geo-synchronous
None of the above
Generally, purpose of geostationary satellite is:
Remote Sensing
Global positioning
Telecommunication and weather monitoring
None of the above
The characteristics of electromagnetic radiation are particularly important for understanding remote sensing:
Wavelength
Frequency
Wavelength and frequency
None of the above
The light which our eyes - our "remote sensors" - can detect is part of the:
Ultraviolet
Visible spectrum
Infrared
Microwave
The visible wavelengths cover a range from approximately
0.4 to 0.7 µm
0.7 µm to 1mm
0.4 to 1mm
(b) 3.5 and 20 µm
