USI SAFETY STUDY GUIDE 2026 QUESTIONS AND
SOLUTIONS RATED A+
✔✔the person who patented the use of radio waves to remotely control vehicles is _
a. Charles Draper
b. Vladimir Zworykin
c. Nikola Tesla
d. Elmer Sperry - ✔✔c. Nikola Tesla
✔✔To measure the angular accelerations around the pitch, roll, and yaw axes of an
aircraft, use a _
a. gyroscope
b. magnetometer
c. barometer
d. gps - ✔✔a. gyroscope
✔✔to reduce the risk of lost-link situations and to maintain communications integrity,
a. increase the volume of the receivers
b. have many redundant and backup systems
c. make the link longer - ✔✔b. have many redundant and backup systems
✔✔Aircraft performance is directly affected by _
a. pilot rest time
b. telemetry
c. density altitude
d. none of these - ✔✔c. density altitude
✔✔What is one of the rules of part 107?
a. may not fly inside an abandoned building for an indoor drone race
b. may not fly over the remote pilot's house
c. may not fly at night without proper anti-collision lights - ✔✔c. may not fly at night
without proper anti-collision lights
✔✔the name of the combination of satellites, scattered around the earth, creating a
seamless network of coverage that allows continuous unbroken communications
worldwide is
a. starlight mega-constellation
b. iridium network
c. SpaceX complex
d. sirius grid - ✔✔b. iridium network
✔✔in case there is a breakdown in communication between the UAS and GCS, what is
necessary?
a. range imaging backup system
,b. a contingency plan
c. a thematic map - ✔✔b. a contingency plan
✔✔what electronic device is used to measure the magnetic field around the aircraft?
a. range finder
b. barometer
c. magnetometer
d. multi-spectral scanner - ✔✔c. magnetometer
✔✔T/F - a sensor is a device that detects events and then produces a corresponding
output of the event - ✔✔true
✔✔an electro-optical camera, using its own Electromagnetic radiation (flash) for
illumination at night is _
a. active
b. passive
c. hyperspectral - ✔✔a. active
✔✔T/F - the laws of physics and aerodynamics are the same for quadcopters and fixed-
wing aircraft - ✔✔true
✔✔the expectation to enjoy activities in public without intrusion or nuisance is a social
norm that may be challenged by a UAS operation. How could a remote pilot choose to
uphold this norm?
a. By flying their U too high for the public to see or hear it
b. By conducting their UAS operation at a time when a public area is busy so people
likely won't notice their UA
c. By conducting their operation at a time when a public area is mostly empty - ✔✔c. By
conducting their operation at a time when a public area is mostly empty
✔✔Class C airspace is generally airspace from the surface to 4000' within 5 NM of the
field and _ to 4000' between 5-10 NM from the field
a. 2000 feet Mean Sea Level
b. 1200 feet Above Ground Level
c. 400 feet Mean Sea Level - ✔✔b. 1200 feet Above Ground Level
✔✔The maximum altitude that a remote pilot can fly a sUAS under Part 107 flight rules,
clear of obstacles is _
a. 1200 feet AGL
b. 400 feet Mean Sea Level
c. 500 feet AGL
d. 400 feet Above Ground Level (AGL) - ✔✔d. 400 feet Above Ground Level (AGL)
✔✔What four parameters are required to calculate density altitude?
, -altitude
-dew point
-field elevation
-air temperature
-barometric pressure
-direction - ✔✔barometric pressure, air temperature, dew point, field elevation
✔✔what is the antidote to an attitude of invulnerability?
a. follow the rules, because they are usually right
b. think first, then act
c. stay proactive and reactive
d. remembering that accidents can happen to anyone - ✔✔d. remembering that
accidents can happen to anyone
✔✔what is the area on an aeronautical sectional chart that is charted with a "P" followed
by a number?
a. prohibited area
b. papa airspace
c. private airspace - ✔✔a. prohibited area
✔✔to ensure that a sUAS is safe for operation, the _ is required to perform system
checks before each flight
a. Visual observer
b. owner of the sUAS
c. remote pilot in command
d. none of these - ✔✔c. remote pilot in command
✔✔T/F - the upper Gross Takeoff Weight limit of a small UAS is less than 44 pounds -
✔✔false
✔✔what two factors contribute to an omni antenna being a common type of antenna for
almost all UAS types?
a. speed, controllability
b. signal strength, frequency
c. cost, reliability
d. accuracy, sensor orientation - ✔✔c. cost, reliability
✔✔what are two effective strategies for dealing with stress?
-minor protective actions
-panic
-avoid/ignore the problem
-recovery method
-vigilance - ✔✔recovery method, vigilance
SOLUTIONS RATED A+
✔✔the person who patented the use of radio waves to remotely control vehicles is _
a. Charles Draper
b. Vladimir Zworykin
c. Nikola Tesla
d. Elmer Sperry - ✔✔c. Nikola Tesla
✔✔To measure the angular accelerations around the pitch, roll, and yaw axes of an
aircraft, use a _
a. gyroscope
b. magnetometer
c. barometer
d. gps - ✔✔a. gyroscope
✔✔to reduce the risk of lost-link situations and to maintain communications integrity,
a. increase the volume of the receivers
b. have many redundant and backup systems
c. make the link longer - ✔✔b. have many redundant and backup systems
✔✔Aircraft performance is directly affected by _
a. pilot rest time
b. telemetry
c. density altitude
d. none of these - ✔✔c. density altitude
✔✔What is one of the rules of part 107?
a. may not fly inside an abandoned building for an indoor drone race
b. may not fly over the remote pilot's house
c. may not fly at night without proper anti-collision lights - ✔✔c. may not fly at night
without proper anti-collision lights
✔✔the name of the combination of satellites, scattered around the earth, creating a
seamless network of coverage that allows continuous unbroken communications
worldwide is
a. starlight mega-constellation
b. iridium network
c. SpaceX complex
d. sirius grid - ✔✔b. iridium network
✔✔in case there is a breakdown in communication between the UAS and GCS, what is
necessary?
a. range imaging backup system
,b. a contingency plan
c. a thematic map - ✔✔b. a contingency plan
✔✔what electronic device is used to measure the magnetic field around the aircraft?
a. range finder
b. barometer
c. magnetometer
d. multi-spectral scanner - ✔✔c. magnetometer
✔✔T/F - a sensor is a device that detects events and then produces a corresponding
output of the event - ✔✔true
✔✔an electro-optical camera, using its own Electromagnetic radiation (flash) for
illumination at night is _
a. active
b. passive
c. hyperspectral - ✔✔a. active
✔✔T/F - the laws of physics and aerodynamics are the same for quadcopters and fixed-
wing aircraft - ✔✔true
✔✔the expectation to enjoy activities in public without intrusion or nuisance is a social
norm that may be challenged by a UAS operation. How could a remote pilot choose to
uphold this norm?
a. By flying their U too high for the public to see or hear it
b. By conducting their UAS operation at a time when a public area is busy so people
likely won't notice their UA
c. By conducting their operation at a time when a public area is mostly empty - ✔✔c. By
conducting their operation at a time when a public area is mostly empty
✔✔Class C airspace is generally airspace from the surface to 4000' within 5 NM of the
field and _ to 4000' between 5-10 NM from the field
a. 2000 feet Mean Sea Level
b. 1200 feet Above Ground Level
c. 400 feet Mean Sea Level - ✔✔b. 1200 feet Above Ground Level
✔✔The maximum altitude that a remote pilot can fly a sUAS under Part 107 flight rules,
clear of obstacles is _
a. 1200 feet AGL
b. 400 feet Mean Sea Level
c. 500 feet AGL
d. 400 feet Above Ground Level (AGL) - ✔✔d. 400 feet Above Ground Level (AGL)
✔✔What four parameters are required to calculate density altitude?
, -altitude
-dew point
-field elevation
-air temperature
-barometric pressure
-direction - ✔✔barometric pressure, air temperature, dew point, field elevation
✔✔what is the antidote to an attitude of invulnerability?
a. follow the rules, because they are usually right
b. think first, then act
c. stay proactive and reactive
d. remembering that accidents can happen to anyone - ✔✔d. remembering that
accidents can happen to anyone
✔✔what is the area on an aeronautical sectional chart that is charted with a "P" followed
by a number?
a. prohibited area
b. papa airspace
c. private airspace - ✔✔a. prohibited area
✔✔to ensure that a sUAS is safe for operation, the _ is required to perform system
checks before each flight
a. Visual observer
b. owner of the sUAS
c. remote pilot in command
d. none of these - ✔✔c. remote pilot in command
✔✔T/F - the upper Gross Takeoff Weight limit of a small UAS is less than 44 pounds -
✔✔false
✔✔what two factors contribute to an omni antenna being a common type of antenna for
almost all UAS types?
a. speed, controllability
b. signal strength, frequency
c. cost, reliability
d. accuracy, sensor orientation - ✔✔c. cost, reliability
✔✔what are two effective strategies for dealing with stress?
-minor protective actions
-panic
-avoid/ignore the problem
-recovery method
-vigilance - ✔✔recovery method, vigilance
