WorksheetsPractice test for USI final
Total questions: 95
Worksheet time: 50mins
Which of the following control station types is also referred to as a Pilot Control Box (PCB)?
Fixed-facility control station
Handheld control station
Laptop control station
Mobile ground control station
An Autonomous Uncrewed Aircraft System has which of the following features?
A directional antenna
A low level of autonomy
An internal ground control station
Requires no human intervention
The Earth's atmosphere, which comprises a variety of gasses like carbon dioxide, ozone, and water vapor, causes which of the following remote sensing effects? (Select all that apply)
Absorption
Refraction
Scattering
Turbulence
Which of the following are common architecture components shared by all robots? (Select all that apply)
Batteries
Electronic systems
Mechanical structure
Software
What part of a ground control station is also a hardware component of the data link?
Air Data Station
Ground Data Terminal
Terrain masking, equipment failures, and electromagnetic interference can cause which of the following conditions?
Longer range
Loss of link
Phase modulation
Wave propagation
True or False. A Remotely Piloted Aircraft System (RPAS) has lower levels of autonomy than an Autonomous Uncrewed Aircraft System.
True
False
Which types of scattering result in the sky looking blue and clouds looking white?
Mie and Non-selective
Non-selective only
Rayleigh and Mie
Rayleigh and Non-Selective
How does a propeller generate thrust?
Converts fuel into energy through a series of controlled explosions that drive a piston, which in turn creates rotation
Creates a low-pressure zone in front of and a high-pressure zone behind the blades
Drives an alternator that generates power to propel the aircraft
Uses a series of electromagnets and controlled switching to generate motion
Which of the following is NOT a role that a control station can serve?
Command center with vehicle takeoff and landing control
Enroute command and control facility
Payload control and imagery analysis
Relay for extended visual line of sight data links
If power and wavelength are equal, which antennas would have the shortest range?
Directional
Omni-directional
Parabolic
Yagi
Which of the following are core components of all remotely piloted aircraft systems? (Select all that apply)
Control Station
Support Equipment
Separate Launch and Recovery System
Payload
What level of autonomy (LOA) describes a vehicle that can perform tasks under limited conditions and make minor decisions (like avoiding an obstacle) independently without direct human supervision, but the operator is still able and ready to intervene if necessary?
LOA 0
LOA 1
LOA 2
LOA 3
Hand, vehicle assisted, and VTOL are all methods of what?
Control Station configurations
Launching air vehicles
Monitoring changing weather conditions
Recovering air vehicles
Which of the following is NOT a function of a remotely piloted aircraft system’s data link?
Allowing ground station control of the AV
Providing return to home commands in the event of an interruption
Relaying aircraft status information
Transmitting video images
What is the primary role of the human in a remotely piloted aircraft system?
They monitor the health and status of the system.
They are responsible for the safety and reliability of the system.
They control the flight path during autonomous missions.
They control the payload’s movements and operation during flight.
Which of the following is NOT one of the four forces acting upon an aircraft?
Gravity
Lift
Drag
Thrust
Position Dilution of Precision (PDOP) is a measurement of precision associated with which of the following?
Data Link
Data Processing speed
GPS
Imagery
Which of the following is NOT a Civil Aviation Authority responsible for regulating UAS?
EASA
FAA
ASTM
CASA
The human eye can only detect electromagnetic radiation wavelengths between which of the following?
Infrared and Ultraviolet
Microwave and Infrared
Radio and Infrared
Ultraviolet and Gamma
Which of the following describes the tendency of an aircraft to fly in a prescribed flight condition?
Control
Differential power
Equilibrium
Stability
A display that shows an aircraft’s altitude, attitude, and airspeed is commonly referred to as which of the following?
Environmental Display
Multi-Functional Display
Pilot Control Display
Primary Flight Display
Frequency Modulation involves encoding information into a carrier wave by varying the amplitude, amount of energy carried by the wave.
True
False
Which of the following are classification systems used for regulating UAS? (Select all that apply)
Gross Takeoff Weight
Kinetic Energy
Number of powerplants
Size of the air vehicle
Selecting a payload sensor that can “see” infrared electromagnetic radiation means the operator is concerned with what type of resolution?
Radiometric
Spatial
Spectral
Temporal
Air density decreases with increasing temperature, causing aircraft performance to decrease.
True
False
Which essential function of a control station describes defining mission objectives and flight paths?
Command and Control
Data Exploitation
Mission Management
Mission Planning
Obstacles within the transmission path of a radio wave cause which of the following?
Radio Frequency Interference: 2 Yes (66.7%)
Radio Frequency Polarity: 0 No (0.0%)
Radio Frequency Propagation: 1 No (33.3%)
Sky Wave Reflection: 0 No (0.0%)
Which of the following is a measure of the amount of electromagnetic radiation leaving the surface (such as the ground or a plant)?
Emissivity: 0 No (0.0%)
Irradiance: 1 No (50.0%)
Radiance: 1 Yes (50.0%)
Irradiance: 0 No (0.0%)
A fixed-wing air vehicle is more stable when the payload is placed close to which of the following?
At the nose of the aircraft
Center of Gravity
The undercarriage of the aircraft
Powerplant
Which essential function of a control station describes the processing and sharing of mission data and imagery?
Command and Control
Data Exploitation
Mission Management
Mission Planning
Which of the following is a measurement of the strength of a signal relative to ambient noise?
FSPL
RSSI
SNR
VSWR
Beyond Line-of-Sight Operations require which of the following? (Select all that apply)
A daisy chain of visual observers
A TRUST Certificate
Alternative means of complying with ‘see and avoid’ requirements
Multiple data links
Emissivity compares the thermal emittance of an object to that of which of the following?
A black body: 0
A white body: 1
The ambient temperature of the water: 0
The theoretical number: 0
Increasing the Angle of Attack (AOA) of a wing is directly proportional to the amount of lift produced until boundary layer separation, resulting in which of the following?
Differential pressure: 0 No (0.0%)
Incidence angle: 0 No (0.0%)
Wing stall: 1 Yes (100.0%)
Wingtip vortices: 0 No (0.0%)
Which of the following describes a human-machine interaction where the human operator receives and monitors data from the air vehicle but has little to no control intervention?
In the loop: 0 No (0.0%)
On the Loop: 0 Yes (0.0%)
Out of the Loop: 1 No (100.0%)
Over the loop: 0 No (0.0%)
When are remotely piloted aircraft systems considered a favorable alternative to conventional aircraft? (Select all that apply)
When conducting flights that expose human pilots to more dangerous situations
When conducting flights that transport humans between established departure and arrival points
When conducting flights that involve exposure to hazardous environments
When conducting flights with highly repetitive tasks
True or False. Passive imaging payloads rely on natural energy sources, such as sunlight, to create images.
True
False
How will adding more weight to a remotely piloted aircraft affect performance?
Improve maneuverability: 0 No (0.0%)
Adversely affect stability: 0 Yes (0.0%)
Decrease wing loading: 0 No (0.0%)
Decrease stall speed: 1 No (100.0%)
A control interface and data storage devices are typical of what?
Hardware found in ground control stations
Human-machine interfaces found in ground control stations
Parts of the data link are associated with the ground control station
Software used in laptop control stations
Using directional antennas, implementing encryption, and signal filtering are all techniques that can do which of the following?
Create a beyond line-of-sight data link
Improve the reliability of the data link
Minimize free space path loss
To determine the frequency of the transmitted signal
Removing the need to support a human pilot can have which of the following effects on the design process? (Select all that apply)
Allows for lighter weight aircraft
Reallocates space on the aircraft for fuel or payload
Requires heavier materials for airframe construction
Can simplify the design
True or False. Passive imaging payloads emit energy and measure the energy reflected or scattered back from the target object or surface.
True
False
Total drag is the combined effect of which two drag components?
The angle of attack and boundary layer
Aspect ratio and turbulence
Parasitic and lift-induced
Stability and control
Which of the following have limited the growth of the UAS regulations (Select all that apply)
Low-flying Aircraft Traffic Management
The rapid pace of technological advancement
Visual Flight Rules ‘See and Avoid’ requirements
The establishment of a dedicated office within the Civil Aviation Authority
A RGB charged-coupled device is an example of a silicon-based semiconductor imaging technology, also known as which of the following?
Complementary metal-oxide-semiconductor
Electro-optical payload
Mercury cadmium telluride semiconductor
Radiometric infrared payload
Adding an overweight payload to a remotely piloted aircraft system can adversely affect air vehicle performance in which of the following ways? (select all that apply)
Diminished controllability
Higher stall speed
Poor rate of climb
Reduced maneuverability
Which is another name for the uplink between the Ground Control Station and the Air Vehicle?
Air Link
Command Link
Downlink
Telemetry link
What is the common control station employed for small remotely piloted aircraft systems?
Laptop control station
Fixed-facility control station
Handheld control station
Mobile ground control station
Which of the following are considered malicious uses of an autonomous UAS or RPAS? (Select all that apply)
Moving a fixed-wing aircraft’s elevators, a type of control surface, will generate rotation around the lateral axis, also known as which of the following?
Lag
Pitch
Roll
Yaw
What functions can a control station fulfill? (Select all that apply)
Command center with vehicle takeoff and landing control
Enroute command and control facility
Forward control or handoff facility
Mission command
Payload control and imagery analysis
What avionic sensor combines information from gyroscopes and accelerometers to determine the aircraft’s attitude and angular rate?
Flight Control Computer
Global Navigation Satellite System
Inertial Measurement Unit
Pitot Static System
Which of the following systems does not require human intervention?
Air Vehicle: 0 No (0.0%)
Autonomous UAS: 1 Yes (50.0%)
Remotely Piloted Aircraft System: 1 No (50.0%)
Uncrewed Aircraft System: 0 No (0.0%)
Which of the following advantages do directional antennas have over omnidirectional antennas?
Directional antennas are less complicated to set up.
Directional antennas have a shorter range than omni antennas.
Directional antennas have a longer range than omni antennas.
Directional antennas transmit and receive data continuously in a 360-degree direction.
Which methods have been employed for launching air vehicles in remotely piloted aircraft systems? (Select all that apply)
Hand thrown
Catapult
Vehicle assisted
Vertical Takeoff and Landing (VTOL)
Net
Which remote sensing payloads capture data from several (hundreds) contiguous spectral bands at narrow bandwidth intervals?
Hyperspectral
Isothermal
Multispectral
Radiometric
A closed-loop control system adjusts the control output based on the difference between the desired and measured outputs.
True
False
Which Remotely Piloted Aircraft System element is responsible for transmitting data between the ground control station and the aircraft?
Air Vehicle
Control Station
Data Link
Which of the following is NOT a function of a Remotely Piloted Aircraft System data link?
Transmitting engine information
Relaying aircraft status information
Transmitting video images
Storing data
Sending telemetry data
The Ground Data Terminal (GDT) provides communication with airborne systems equipped with a datalink.
True
False
Which element of a Remotely Piloted Aircraft System is responsible for the safety and reliability of the whole system?
Command and Control element
Human element
Maintenance element
Regulatory Environment
Which frequency bands are commonly used in remotely piloted aircraft systems?
A-Band, R-Band, F-Band, and SATCOM
M-Band, L-Band, S-Band, and C-Band
S-Band, L-Band, C-Band, and Ku-Band
Z-Band, L-Band, C-Band, and Ka-Band
Which component(s) are typically in a ground control station? (Select all that apply)
Control interface
Power supply
LIDAR works similarly to Radar, except it uses which of the following to detect and calculate range?
Laminar flow
Laser light
Lexigraphy
Lithotripsy
True or False. Dead reckoning is different from ground reference navigation in that dead reckoning uses known landmarks to maintain course, whereas ground reference uses direction and speed of travel.
True
False
Which components of a remotely piloted aircraft system are found in the ground control station? (Select all that apply.)
Radio transmitter/receiver
Payload
Computer
Monitor
True or False. Multiplexing a signal allows for the simultaneous transmission of several signals, which has the positive side effect of reducing data link interference.
True
False
Which hardware items are NOT typically found in a ground control station? (Select all that apply)
Control interface
Microwave oven
GTOW, in the context of UAS regulation, stands for General Takeoff.
True
False
Equipment failure and interference by other signals or terrain can cause which of the following?
Free Space Path Loss
Lack of Stability
Loss of Link
Reduced Endurance
The Human Machine Interface (HMI) in a ground control station is used to control flight and interact with remotely piloted aircraft.
True
False
Which of the following types of accuracy refers to the accuracy of spatial data with respect to real-world coordinates?
Absolute Accuracy
Geometric Correction
Relative Accuracy
Root Mean Square
The threshold for a remotely piloted aircraft system to be considered large by the FAA is 55 pounds.
True
False
Thrust is the aerodynamic force created by the propeller.
True
False
Lower-frequency carrier waves can carry more information.
True
False
In the realm of GPS navigation, PDOP stands for Performance and Data Output Parameter.
True
False
Which of the following is a Digital Elevation Model representing the Earth’s surface void of vegetation and structures?
Digital Surface Model
Digital Terrain Model
Geographic Information System
Orthomosaic Model
Aviation uses G forces to measure which of the following?
Speed
Altitude
Acceleration
Fuel consumption
Which of the following is the name for the movement of radio waves from the transmission antenna to the receiver’s antenna?
Attenuation
Propagation
Refraction
Scattering
True or False. Altitude, Airspace, and real-time video feeds are commonly displayed on a Primary Flight Display (PFD).
True
False
Photogrammetry uses which of the following techniques to determine the positions of ground points by analyzing the images acquired from overlapping aerial photographs?
Aerial Triangulation
Ground Control Points
In situ data measurement
Orthorectification
Weather conditions and obstacles are environmental challenges that fall into which environmental domains?
External
Operational
Organizational
Regulatory
Air density decreases with increasing temperature, causing aircraft performance to increase.
True
False
Which of the following can cause signal fading and distortion?
Amplification
Baud rate
Multipath propagation
Skywave Reflection
The term “telemetry” in reference to RPAS means real-time transmission of data from the air vehicle to the control station.
True
False
Visual Line of Sight (VLOS) is limited by the crew's ability to see the air vehicle.
True
False
Obstacles in the transmission path can cause radio frequency interference in telecommunication systems.
True
False
What is the purpose of the control station in RPAS operations?
Command and Control, Mission Management, Data Exploitation
Telemetry Analysis, Payload Control, Air Traffic Management
Payload Monitoring, Mission Execution, Data Processing
Which of the following operating concepts uses multiple data links to extend the range of an air vehicle?
Beyond Line of Sight
Beyond Visual Line of Sight
Line of Sight
Extended Visual Line of Sight
A wing stall can be categorized as which of the following?
A decrease in drag caused by parasitic forces.
An abrupt loss of lift caused by boundary layer separation.
An increase in lift is caused by reaching the air vehicle’s service ceiling.
A shift in the center of gravity causing decreased stability.
What is the term for the bending of waves as they pass from one medium to another due to a change in their speed?
Absorption
Distortion
Reflection
Refraction
Defining mission objectives and flight paths is part of what process?
Post Flight
Emplacement
Mission briefing
Mission planning
Spatial resolution is impacted by the sensor’s field of view and the aircraft’s height above the ground.
True
False
GPS Navigation, Payload Deployment, Weather Monitoring
Yes
No
