07 August 2026
USI Certification 2026/2027 Test Exam 180
comprehensive questions | FREQUENTLY MOST TESTED
QUESTIONS AND VERIFIED SOLUTIONS/GET IT 100%
ACCURATE!! 2026!!
An Autonomous Uncrewed Aircraft System has which of the following features? - correct
answer-Requires no human intervention
Which of the following are common architecture components shared by all robots? - correct answer-
Electronic systems, Mechanical structure, and Software
The uplink, which describes the portion of the data link that transmits commands and flight plan
changes from the ground control station to the air vehicle, is also known as which of the following? -
correct answer-Command link
What type of closed-loop system adjusts the output of a process based on the difference between
the desired output (the setpoint) and the measured output? - correct answer-proportional-integral-
derivative control
Which component of the Air Data Computer measures airspeed? - correct answer-Pitot tube
Control surfaces like ailerons, rudders, and elevators perform which of the following tasks? - correct
answer-Maintain a fixed-wing aircraft's stability and maneuverability
Increasing the RPM of all four motors on a quadcopter will induce a climb. What will changing the
RPM of two diagonal motors induce? - correct answer-Yaw
Dead reckoning is a navigational technique that estimates the aircraft's position based on which of
the following? - correct answer-Direction and speed of travel
Ground reference is a navigational technique that estimates the aircraft's position based on which of
the following? - correct answer-Known landmarks
Which is another name for the uplink between the Ground Control Station and the Air Vehicle? -
correct answer-Command Link
, 07 August 2026
Omni-directional antennas transmit and receive data continuously in a 360-degree direction. -
correct answer-True
Which of the following advantages do directional antennas have over omnidirectional antennas? -
correct answer-Directional antennas have a longer range than omni antennas
Which of the following is NOT a function of a Remotely Piloted Aircraft System data link? - correct
answer-Storing data
Which frequency bands are commonly used in remotely piloted aircraft systems? - correct answer-S-
Band, L-Band, C-Band, and Ku-Band
Multiplexing a signal allows for the simultaneous transmission of several signals, which has the
positive side effect of reducing data link interference. - correct answer-True
Equipment failure and interference by other signals or terrain can cause which of the following? -
correct answer-Loss of Link
Lower-frequency carrier waves can carry more information. - correct answer-False
Which of the following is the name for the movement of radio waves from the transmission antenna
to the receiver's antenna? - correct answer-Propagation
Which of the following can cause signal fading and distortion? - correct answer-Multipath
propagation
Obstacles in the transmission path can cause radio frequency interference in telecommunication
systems. - correct answer-True
What is the term for the bending of waves as they pass from one medium to another due to a
change in their speed? - correct answer-Refraction
Sky Wave Reflection occurs when radio waves below ____ bounce off charged particles in the Earth's
ionosphere. - correct answer-1 GHz
USI Certification 2026/2027 Test Exam 180
comprehensive questions | FREQUENTLY MOST TESTED
QUESTIONS AND VERIFIED SOLUTIONS/GET IT 100%
ACCURATE!! 2026!!
An Autonomous Uncrewed Aircraft System has which of the following features? - correct
answer-Requires no human intervention
Which of the following are common architecture components shared by all robots? - correct answer-
Electronic systems, Mechanical structure, and Software
The uplink, which describes the portion of the data link that transmits commands and flight plan
changes from the ground control station to the air vehicle, is also known as which of the following? -
correct answer-Command link
What type of closed-loop system adjusts the output of a process based on the difference between
the desired output (the setpoint) and the measured output? - correct answer-proportional-integral-
derivative control
Which component of the Air Data Computer measures airspeed? - correct answer-Pitot tube
Control surfaces like ailerons, rudders, and elevators perform which of the following tasks? - correct
answer-Maintain a fixed-wing aircraft's stability and maneuverability
Increasing the RPM of all four motors on a quadcopter will induce a climb. What will changing the
RPM of two diagonal motors induce? - correct answer-Yaw
Dead reckoning is a navigational technique that estimates the aircraft's position based on which of
the following? - correct answer-Direction and speed of travel
Ground reference is a navigational technique that estimates the aircraft's position based on which of
the following? - correct answer-Known landmarks
Which is another name for the uplink between the Ground Control Station and the Air Vehicle? -
correct answer-Command Link
, 07 August 2026
Omni-directional antennas transmit and receive data continuously in a 360-degree direction. -
correct answer-True
Which of the following advantages do directional antennas have over omnidirectional antennas? -
correct answer-Directional antennas have a longer range than omni antennas
Which of the following is NOT a function of a Remotely Piloted Aircraft System data link? - correct
answer-Storing data
Which frequency bands are commonly used in remotely piloted aircraft systems? - correct answer-S-
Band, L-Band, C-Band, and Ku-Band
Multiplexing a signal allows for the simultaneous transmission of several signals, which has the
positive side effect of reducing data link interference. - correct answer-True
Equipment failure and interference by other signals or terrain can cause which of the following? -
correct answer-Loss of Link
Lower-frequency carrier waves can carry more information. - correct answer-False
Which of the following is the name for the movement of radio waves from the transmission antenna
to the receiver's antenna? - correct answer-Propagation
Which of the following can cause signal fading and distortion? - correct answer-Multipath
propagation
Obstacles in the transmission path can cause radio frequency interference in telecommunication
systems. - correct answer-True
What is the term for the bending of waves as they pass from one medium to another due to a
change in their speed? - correct answer-Refraction
Sky Wave Reflection occurs when radio waves below ____ bounce off charged particles in the Earth's
ionosphere. - correct answer-1 GHz
