USI EXAM STUDY QUESTION UPDATED QUESTIONS AND
ANSWERS
What is "Ground Sample Distance? - CORRECT ANSWER✅✅✅The size of a pixel projected on the
ground.
What variables make up the formula for calculating "Ground Sample Distance? - CORRECT
ANSWER✅✅✅Sensor altitude, sensor width, image width, focal length
Can you compare the relative and absolute accuracy of geospatial data used in RPAS operations? -
CORRECT ANSWER✅✅✅Relative accuracy is the consistency of spatial relations in images and
absolute is the accuracy relative to known ground coordinates
What do "camera depression angle" and "azimuth" mean in the context of RPAS operations? - CORRECT
ANSWER✅✅✅Depression angle is the angle from the sensor to the ground and azimuth is the angle
on the horizontal plane, or left and right
What is the difference between a low oblique and a high oblique aerial image? - CORRECT
ANSWER✅✅✅A low oblique aerial image is one where the horizon is not visible, as the camera is
almost directly below, and high oblique images are at a high depression angle, looking at the horizon
What are the units of measurement commonly used in RPAS operations for altitude, airspeed, distance,
time, meteorological, and atmospheric conditions? - CORRECT ANSWER✅✅✅AGL, knots, meters or
nautical or statute miles, zulu time, knots of winds, inches of mercury
What coordinate systems are commonly employed in RPAS operations, and how are these systems used
to determine the position of a point on the Earth's surface? - CORRECT ANSWER✅✅✅Geographic
coordinate system, which uses latitude and longitude coordinates, Universal transversal mercator,
which uses their easting and northing coordinates to find a location, separating the earth into 60 zones.
How do the objectives of aerial survey missions differ from those of aerial inspection missions? -
CORRECT ANSWER✅✅✅Aerial survey views large areas to survey them, and aerial inspection
missions closely inspect wear and tear, integrity, corrosion, and potential risks.
, What is the difference between "front lap" and "side lap" in relation to an aerial survey mission? -
CORRECT ANSWER✅✅✅A front lap is the first pass of the area of operations, a side lap is the last
pass of that same area of operations, off to the side.
What is the generic workflow used to plan and execute an RPAS mission? - CORRECT
ANSWER✅✅✅Develop a preliminary plan, visit the worksite and gather in situ data, and then
conduct a safety review of the hazards and issues identified during the first two steps.
Differentiate between "area of interest" and "area of operation" regarding RPAS mission planning. -
CORRECT ANSWER✅✅✅The area of interest is the specific targets that the RPAS crew want to
survey, while area of operations is used to identify potential hazards as to where the AV will operate
What does RPAS mission planning mean by "launch and recovery site"? - CORRECT
ANSWER✅✅✅The launch and recovery site is the place where the pilot will take off and land the AV
Explain the concept of "mission objectives" in RPAS mission planning. - CORRECT
ANSWER✅✅✅Mission objectives is the purpose and desired outcome of an air mission
Identify official sources for air space, Temporary Flight Restrictions, Facility Maps, sunset times,
weather, communication frequencies, and state regulations. - CORRECT ANSWER✅✅✅The main
source that is used is LAANC for airspace authorizations
Differentiate between Class E airspace types (E4, E3, and E2) on a chart and explain the authorization
required. - CORRECT ANSWER✅✅✅E4 does not need ATC authorization to fly in, associated with
class d airspace. E3 also doesn't need authorization to fly in, it provides a transition from controlled to
uncontrolled airspace, associated with class c airspace. E2 airspace requires authorization and is for
control towers that don't provide full time services
How can you identify Airspace and Temporary Flight Restrictions (TFR)specific to an operational area? -
CORRECT ANSWER✅✅✅Use a LAANC authorization
What information can be determined by using an Airport Facility Maps (LAANC) for a specific operational
area? - CORRECT ANSWER✅✅✅Controlled airspace coverage and height and time restrictions
ANSWERS
What is "Ground Sample Distance? - CORRECT ANSWER✅✅✅The size of a pixel projected on the
ground.
What variables make up the formula for calculating "Ground Sample Distance? - CORRECT
ANSWER✅✅✅Sensor altitude, sensor width, image width, focal length
Can you compare the relative and absolute accuracy of geospatial data used in RPAS operations? -
CORRECT ANSWER✅✅✅Relative accuracy is the consistency of spatial relations in images and
absolute is the accuracy relative to known ground coordinates
What do "camera depression angle" and "azimuth" mean in the context of RPAS operations? - CORRECT
ANSWER✅✅✅Depression angle is the angle from the sensor to the ground and azimuth is the angle
on the horizontal plane, or left and right
What is the difference between a low oblique and a high oblique aerial image? - CORRECT
ANSWER✅✅✅A low oblique aerial image is one where the horizon is not visible, as the camera is
almost directly below, and high oblique images are at a high depression angle, looking at the horizon
What are the units of measurement commonly used in RPAS operations for altitude, airspeed, distance,
time, meteorological, and atmospheric conditions? - CORRECT ANSWER✅✅✅AGL, knots, meters or
nautical or statute miles, zulu time, knots of winds, inches of mercury
What coordinate systems are commonly employed in RPAS operations, and how are these systems used
to determine the position of a point on the Earth's surface? - CORRECT ANSWER✅✅✅Geographic
coordinate system, which uses latitude and longitude coordinates, Universal transversal mercator,
which uses their easting and northing coordinates to find a location, separating the earth into 60 zones.
How do the objectives of aerial survey missions differ from those of aerial inspection missions? -
CORRECT ANSWER✅✅✅Aerial survey views large areas to survey them, and aerial inspection
missions closely inspect wear and tear, integrity, corrosion, and potential risks.
, What is the difference between "front lap" and "side lap" in relation to an aerial survey mission? -
CORRECT ANSWER✅✅✅A front lap is the first pass of the area of operations, a side lap is the last
pass of that same area of operations, off to the side.
What is the generic workflow used to plan and execute an RPAS mission? - CORRECT
ANSWER✅✅✅Develop a preliminary plan, visit the worksite and gather in situ data, and then
conduct a safety review of the hazards and issues identified during the first two steps.
Differentiate between "area of interest" and "area of operation" regarding RPAS mission planning. -
CORRECT ANSWER✅✅✅The area of interest is the specific targets that the RPAS crew want to
survey, while area of operations is used to identify potential hazards as to where the AV will operate
What does RPAS mission planning mean by "launch and recovery site"? - CORRECT
ANSWER✅✅✅The launch and recovery site is the place where the pilot will take off and land the AV
Explain the concept of "mission objectives" in RPAS mission planning. - CORRECT
ANSWER✅✅✅Mission objectives is the purpose and desired outcome of an air mission
Identify official sources for air space, Temporary Flight Restrictions, Facility Maps, sunset times,
weather, communication frequencies, and state regulations. - CORRECT ANSWER✅✅✅The main
source that is used is LAANC for airspace authorizations
Differentiate between Class E airspace types (E4, E3, and E2) on a chart and explain the authorization
required. - CORRECT ANSWER✅✅✅E4 does not need ATC authorization to fly in, associated with
class d airspace. E3 also doesn't need authorization to fly in, it provides a transition from controlled to
uncontrolled airspace, associated with class c airspace. E2 airspace requires authorization and is for
control towers that don't provide full time services
How can you identify Airspace and Temporary Flight Restrictions (TFR)specific to an operational area? -
CORRECT ANSWER✅✅✅Use a LAANC authorization
What information can be determined by using an Airport Facility Maps (LAANC) for a specific operational
area? - CORRECT ANSWER✅✅✅Controlled airspace coverage and height and time restrictions
