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Practice test for USI final

Total questions: 95

Worksheet time: 50mins

Name
Class
Date
1.

Which of the following control station types is also referred to as a Pilot Control Box (PCB)?

a)

Fixed-facility control station

b)

Handheld control station

c)

Laptop control station

d)

Mobile ground control station

2.

An Autonomous Uncrewed Aircraft System has which of the following features?

a)

A directional antenna

b)

A low level of autonomy

c)

An internal ground control station

d)

Requires no human intervention

3.

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)

a)

Absorption

b)

Refraction

c)

Scattering

d)

Turbulence

4.

Which of the following are common architecture components shared by all robots? (Select all that apply)

a)

Batteries

b)

Electronic systems

c)

Mechanical structure

d)

Software

5.

What part of a ground control station is also a hardware component of the data link?

a)

Air Data Station

b)

Ground Data Terminal

6.

Terrain masking, equipment failures, and electromagnetic interference can cause which of the following conditions?

a)

Longer range

b)

Loss of link

c)

Phase modulation

d)

Wave propagation

7.

True or False. A Remotely Piloted Aircraft System (RPAS) has lower levels of autonomy than an Autonomous Uncrewed Aircraft System.

a)

True

b)

False

8.

Which types of scattering result in the sky looking blue and clouds looking white?

a)

Mie and Non-selective

b)

Non-selective only

c)

Rayleigh and Mie

d)

Rayleigh and Non-Selective

9.

How does a propeller generate thrust?

a)

Converts fuel into energy through a series of controlled explosions that drive a piston, which in turn creates rotation

b)

Creates a low-pressure zone in front of and a high-pressure zone behind the blades

c)

Drives an alternator that generates power to propel the aircraft

d)

Uses a series of electromagnets and controlled switching to generate motion

10.

Which of the following is NOT a role that a control station can serve?

a)

Command center with vehicle takeoff and landing control

b)

Enroute command and control facility

c)

Payload control and imagery analysis

d)

Relay for extended visual line of sight data links

11.

If power and wavelength are equal, which antennas would have the shortest range?

a)

Directional

b)

Omni-directional

c)

Parabolic

d)

Yagi

12.

Which of the following are core components of all remotely piloted aircraft systems? (Select all that apply)

a)

Control Station

b)

Support Equipment

c)

Separate Launch and Recovery System

d)

Payload

13.

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?

a)

LOA 0

b)

LOA 1

c)

LOA 2

d)

LOA 3

14.

Hand, vehicle assisted, and VTOL are all methods of what?

a)

Control Station configurations

b)

Launching air vehicles

c)

Monitoring changing weather conditions

d)

Recovering air vehicles

15.

Which of the following is NOT a function of a remotely piloted aircraft system’s data link?

a)

Allowing ground station control of the AV

b)

Providing return to home commands in the event of an interruption

c)

Relaying aircraft status information

d)

Transmitting video images

16.

What is the primary role of the human in a remotely piloted aircraft system?

a)

They monitor the health and status of the system.

b)

They are responsible for the safety and reliability of the system.

c)

They control the flight path during autonomous missions.

d)

They control the payload’s movements and operation during flight.

17.

Which of the following is NOT one of the four forces acting upon an aircraft?

a)

Gravity

b)

Lift

c)

Drag

d)

Thrust

18.

Position Dilution of Precision (PDOP) is a measurement of precision associated with which of the following?

a)

Data Link

b)

Data Processing speed

c)

GPS

d)

Imagery

19.

Which of the following is NOT a Civil Aviation Authority responsible for regulating UAS?

a)

EASA

b)

FAA

c)

ASTM

d)

CASA

20.

The human eye can only detect electromagnetic radiation wavelengths between which of the following?

a)

Infrared and Ultraviolet

b)

Microwave and Infrared

c)

Radio and Infrared

d)

Ultraviolet and Gamma

21.

Which of the following describes the tendency of an aircraft to fly in a prescribed flight condition?

a)

Control

b)

Differential power

c)

Equilibrium

d)

Stability

22.

A display that shows an aircraft’s altitude, attitude, and airspeed is commonly referred to as which of the following?

a)

Environmental Display

b)

Multi-Functional Display

c)

Pilot Control Display

d)

Primary Flight Display

23.

Frequency Modulation involves encoding information into a carrier wave by varying the amplitude, amount of energy carried by the wave.

a)

True

b)

False

24.

Which of the following are classification systems used for regulating UAS? (Select all that apply)

a)

Gross Takeoff Weight

b)

Kinetic Energy

c)

Number of powerplants

d)

Size of the air vehicle

25.

Selecting a payload sensor that can “see” infrared electromagnetic radiation means the operator is concerned with what type of resolution?

a)

Radiometric

b)

Spatial

c)

Spectral

d)

Temporal

26.

Air density decreases with increasing temperature, causing aircraft performance to decrease.

a)

True

b)

False

27.

Which essential function of a control station describes defining mission objectives and flight paths?

a)

Command and Control

b)

Data Exploitation

c)

Mission Management

d)

Mission Planning

28.

Obstacles within the transmission path of a radio wave cause which of the following?

a)

Radio Frequency Interference: 2 Yes (66.7%)

b)

Radio Frequency Polarity: 0 No (0.0%)

c)

Radio Frequency Propagation: 1 No (33.3%)

d)

Sky Wave Reflection: 0 No (0.0%)

29.

Which of the following is a measure of the amount of electromagnetic radiation leaving the surface (such as the ground or a plant)?

a)

Emissivity: 0 No (0.0%)

b)

Irradiance: 1 No (50.0%)

c)

Radiance: 1 Yes (50.0%)

d)

Irradiance: 0 No (0.0%)

30.

A fixed-wing air vehicle is more stable when the payload is placed close to which of the following?

a)

At the nose of the aircraft

b)

Center of Gravity

c)

The undercarriage of the aircraft

d)

Powerplant

31.

Which essential function of a control station describes the processing and sharing of mission data and imagery?

a)

Command and Control

b)

Data Exploitation

c)

Mission Management

d)

Mission Planning

32.

Which of the following is a measurement of the strength of a signal relative to ambient noise?

a)

FSPL

b)

RSSI

c)

SNR

d)

VSWR

33.

Beyond Line-of-Sight Operations require which of the following? (Select all that apply)

a)

A daisy chain of visual observers

b)

A TRUST Certificate

c)

Alternative means of complying with ‘see and avoid’ requirements

d)

Multiple data links

34.

Emissivity compares the thermal emittance of an object to that of which of the following?

a)

A black body: 0

b)

A white body: 1

c)

The ambient temperature of the water: 0

d)

The theoretical number: 0

35.

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?

a)

Differential pressure: 0 No (0.0%)

b)

Incidence angle: 0 No (0.0%)

c)

Wing stall: 1 Yes (100.0%)

d)

Wingtip vortices: 0 No (0.0%)

36.

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?

a)

In the loop: 0 No (0.0%)

b)

On the Loop: 0 Yes (0.0%)

c)

Out of the Loop: 1 No (100.0%)

d)

Over the loop: 0 No (0.0%)

37.

When are remotely piloted aircraft systems considered a favorable alternative to conventional aircraft? (Select all that apply)

a)

When conducting flights that expose human pilots to more dangerous situations

b)

When conducting flights that transport humans between established departure and arrival points

c)

When conducting flights that involve exposure to hazardous environments

d)

When conducting flights with highly repetitive tasks

38.

True or False. Passive imaging payloads rely on natural energy sources, such as sunlight, to create images.

a)

True

b)

False

39.

How will adding more weight to a remotely piloted aircraft affect performance?

a)

Improve maneuverability: 0 No (0.0%)

b)

Adversely affect stability: 0 Yes (0.0%)

c)

Decrease wing loading: 0 No (0.0%)

d)

Decrease stall speed: 1 No (100.0%)

40.

A control interface and data storage devices are typical of what?

a)

Hardware found in ground control stations

b)

Human-machine interfaces found in ground control stations

c)

Parts of the data link are associated with the ground control station

d)

Software used in laptop control stations

41.

Using directional antennas, implementing encryption, and signal filtering are all techniques that can do which of the following?

a)

Create a beyond line-of-sight data link

b)

Improve the reliability of the data link

c)

Minimize free space path loss

d)

To determine the frequency of the transmitted signal

42.

Removing the need to support a human pilot can have which of the following effects on the design process? (Select all that apply)

a)

Allows for lighter weight aircraft

b)

Reallocates space on the aircraft for fuel or payload

c)

Requires heavier materials for airframe construction

d)

Can simplify the design

43.

True or False. Passive imaging payloads emit energy and measure the energy reflected or scattered back from the target object or surface.

a)

True

b)

False

44.

Total drag is the combined effect of which two drag components?

a)

The angle of attack and boundary layer

b)

Aspect ratio and turbulence

c)

Parasitic and lift-induced

d)

Stability and control

45.

Which of the following have limited the growth of the UAS regulations (Select all that apply)

a)

Low-flying Aircraft Traffic Management

b)

The rapid pace of technological advancement

c)

Visual Flight Rules ‘See and Avoid’ requirements

d)

The establishment of a dedicated office within the Civil Aviation Authority

46.

A RGB charged-coupled device is an example of a silicon-based semiconductor imaging technology, also known as which of the following?

a)

Complementary metal-oxide-semiconductor

b)

Electro-optical payload

c)

Mercury cadmium telluride semiconductor

d)

Radiometric infrared payload

47.

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)

a)

Diminished controllability

b)

Higher stall speed

c)

Poor rate of climb

d)

Reduced maneuverability

48.

Which is another name for the uplink between the Ground Control Station and the Air Vehicle?

a)

Air Link

b)

Command Link

c)

Downlink

d)

Telemetry link

49.

What is the common control station employed for small remotely piloted aircraft systems?

a)

Laptop control station

b)

Fixed-facility control station

c)

Handheld control station

d)

Mobile ground control station

50.

Which of the following are considered malicious uses of an autonomous UAS or RPAS? (Select all that apply)

4 lines
51.

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?

a)

Lag

b)

Pitch

c)

Roll

d)

Yaw

52.

What functions can a control station fulfill? (Select all that apply)

a)

Command center with vehicle takeoff and landing control

b)

Enroute command and control facility

c)

Forward control or handoff facility

d)

Mission command

e)

Payload control and imagery analysis

53.

What avionic sensor combines information from gyroscopes and accelerometers to determine the aircraft’s attitude and angular rate?

a)

Flight Control Computer

b)

Global Navigation Satellite System

c)

Inertial Measurement Unit

d)

Pitot Static System

54.

Which of the following systems does not require human intervention?

a)

Air Vehicle: 0 No (0.0%)

b)

Autonomous UAS: 1 Yes (50.0%)

c)

Remotely Piloted Aircraft System: 1 No (50.0%)

d)

Uncrewed Aircraft System: 0 No (0.0%)

55.

Which of the following advantages do directional antennas have over omnidirectional antennas?

a)

Directional antennas are less complicated to set up.

b)

Directional antennas have a shorter range than omni antennas.

c)

Directional antennas have a longer range than omni antennas.

d)

Directional antennas transmit and receive data continuously in a 360-degree direction.

56.

Which methods have been employed for launching air vehicles in remotely piloted aircraft systems? (Select all that apply)

a)

Hand thrown

b)

Catapult

c)

Vehicle assisted

d)

Vertical Takeoff and Landing (VTOL)

e)

Net

57.

Which remote sensing payloads capture data from several (hundreds) contiguous spectral bands at narrow bandwidth intervals?

a)

Hyperspectral

b)

Isothermal

c)

Multispectral

d)

Radiometric

58.

A closed-loop control system adjusts the control output based on the difference between the desired and measured outputs.

a)

True

b)

False

59.

Which Remotely Piloted Aircraft System element is responsible for transmitting data between the ground control station and the aircraft?

a)

Air Vehicle

b)

Control Station

c)

Data Link

60.

Which of the following is NOT a function of a Remotely Piloted Aircraft System data link?

a)

Transmitting engine information

b)

Relaying aircraft status information

c)

Transmitting video images

d)

Storing data

e)

Sending telemetry data

61.

The Ground Data Terminal (GDT) provides communication with airborne systems equipped with a datalink.

a)

True

b)

False

62.

Which element of a Remotely Piloted Aircraft System is responsible for the safety and reliability of the whole system?

a)

Command and Control element

b)

Human element

c)

Maintenance element

d)

Regulatory Environment

63.

Which frequency bands are commonly used in remotely piloted aircraft systems?

a)

A-Band, R-Band, F-Band, and SATCOM

b)

M-Band, L-Band, S-Band, and C-Band

c)

S-Band, L-Band, C-Band, and Ku-Band

d)

Z-Band, L-Band, C-Band, and Ka-Band

64.

Which component(s) are typically in a ground control station? (Select all that apply)

a)

Control interface

b)

Power supply

65.

LIDAR works similarly to Radar, except it uses which of the following to detect and calculate range?

a)

Laminar flow

b)

Laser light

c)

Lexigraphy

d)

Lithotripsy

66.

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.

a)

True

b)

False

67.

Which components of a remotely piloted aircraft system are found in the ground control station? (Select all that apply.)

a)

Radio transmitter/receiver

b)

Payload

c)

Computer

d)

Monitor

68.

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.

a)

True

b)

False

69.

Which hardware items are NOT typically found in a ground control station? (Select all that apply)

a)

Control interface

b)

Microwave oven

70.

GTOW, in the context of UAS regulation, stands for General Takeoff.

a)

True

b)

False

71.

Equipment failure and interference by other signals or terrain can cause which of the following?

a)

Free Space Path Loss

b)

Lack of Stability

c)

Loss of Link

d)

Reduced Endurance

72.

The Human Machine Interface (HMI) in a ground control station is used to control flight and interact with remotely piloted aircraft.

a)

True

b)

False

73.

Which of the following types of accuracy refers to the accuracy of spatial data with respect to real-world coordinates?

a)

Absolute Accuracy

b)

Geometric Correction

c)

Relative Accuracy

d)

Root Mean Square

74.

The threshold for a remotely piloted aircraft system to be considered large by the FAA is 55 pounds.

a)

True

b)

False

75.

Thrust is the aerodynamic force created by the propeller.

a)

True

b)

False

76.

Lower-frequency carrier waves can carry more information.

a)

True

b)

False

77.

In the realm of GPS navigation, PDOP stands for Performance and Data Output Parameter.

a)

True

b)

False

78.

Which of the following is a Digital Elevation Model representing the Earth’s surface void of vegetation and structures?

a)

Digital Surface Model

b)

Digital Terrain Model

c)

Geographic Information System

d)

Orthomosaic Model

79.

Aviation uses G forces to measure which of the following?

a)

Speed

b)

Altitude

c)

Acceleration

d)

Fuel consumption

80.

Which of the following is the name for the movement of radio waves from the transmission antenna to the receiver’s antenna?

a)

Attenuation

b)

Propagation

c)

Refraction

d)

Scattering

81.

True or False. Altitude, Airspace, and real-time video feeds are commonly displayed on a Primary Flight Display (PFD).

a)

True

b)

False

82.

Photogrammetry uses which of the following techniques to determine the positions of ground points by analyzing the images acquired from overlapping aerial photographs?

a)

Aerial Triangulation

b)

Ground Control Points

c)

In situ data measurement

d)

Orthorectification

83.

Weather conditions and obstacles are environmental challenges that fall into which environmental domains?

a)

External

b)

Operational

c)

Organizational

d)

Regulatory

84.

Air density decreases with increasing temperature, causing aircraft performance to increase.

a)

True

b)

False

85.

Which of the following can cause signal fading and distortion?

a)

Amplification

b)

Baud rate

c)

Multipath propagation

d)

Skywave Reflection

86.

The term “telemetry” in reference to RPAS means real-time transmission of data from the air vehicle to the control station.

a)

True

b)

False

87.

Visual Line of Sight (VLOS) is limited by the crew's ability to see the air vehicle.

a)

True

b)

False

88.

Obstacles in the transmission path can cause radio frequency interference in telecommunication systems.

a)

True

b)

False

89.

What is the purpose of the control station in RPAS operations?

a)

Command and Control, Mission Management, Data Exploitation

b)

Telemetry Analysis, Payload Control, Air Traffic Management

c)

Payload Monitoring, Mission Execution, Data Processing

90.

Which of the following operating concepts uses multiple data links to extend the range of an air vehicle?

a)

Beyond Line of Sight

b)

Beyond Visual Line of Sight

c)

Line of Sight

d)

Extended Visual Line of Sight

91.

A wing stall can be categorized as which of the following?

a)

A decrease in drag caused by parasitic forces.

b)

An abrupt loss of lift caused by boundary layer separation.

c)

An increase in lift is caused by reaching the air vehicle’s service ceiling.

d)

A shift in the center of gravity causing decreased stability.

92.

What is the term for the bending of waves as they pass from one medium to another due to a change in their speed?

a)

Absorption

b)

Distortion

c)

Reflection

d)

Refraction

93.

Defining mission objectives and flight paths is part of what process?

a)

Post Flight

b)

Emplacement

c)

Mission briefing

d)

Mission planning

94.

Spatial resolution is impacted by the sensor’s field of view and the aircraft’s height above the ground.

a)

True

b)

False

95.

GPS Navigation, Payload Deployment, Weather Monitoring

a)

Yes

b)

No