AVIT 126 Exam 3 Questions and
Answers All Correct
What term describes when the temperature conditions are such that there is a loss of
contrast between two adjacent non-internally heated objects on infrared imagery? -
Answer-Thermal Crossover
When a Synthetic Aperture Radar (SAR) antenna is mounted onto an aircraft, the
aircrafts movement is used to simulate a larger antenna than actually exists. - Answer-
True
Which of the following has the most effect on producing a poor-quality image from an
infrared camera? - Answer-Humidity
Drones are now included in the definition of "aircraft" under federal law. - Answer-True
Which of the following defines the ability of an infrared camera to display the hottest
temperature in a scene as "white" (white hot), or "black" (black hot)? - Answer-Polarity
The separation between dark and bright, making shadows darker and highlights brighter
is referred to as what? - Answer-Contrast
The type of LiDAR that we talked about in class emits a pulse of energy in the Long-
Wave IR (LWIR) wavelength. - Answer-True
The Causby chicken farm won their lawsuit against the Army (U.S. Government)
because of which type of law? - Answer-Property Law
(True or False) A simple box camera can control the direction of light and create an
image using a hole the size of a pinhole. - Answer-True
LiDAR is considered a passive sensor as it can collect data during the daytime. -
Answer-False
Which term best describes the measure of a materials ability to absorb AND radiate
energy? - Answer-Emissivity
Pixel brightness within a digital image can be measured with what? - Answer-Digital
Number Values
, Which of the following best describes the amount of detail an image can capture? -
Answer-Resolution
(True or False). When SAR is used for change detection only one flight, or data
collection event, is needed. - Answer-False
When a beam of white light enters a prism which wavelength, or color of light, bends the
most when exiting. - Answer-Blue
(True or False) The amount of time that a radio wave takes to go out, bounce off an
object, and return to the sensor is used to calculate the objects distance away from the
RADAR. - Answer-True
What does the acronym LiDAR stand for? - Answer-Light Detection and Ranging
The process of electronically taking the best aspects of two images (for example low-
light and infrared) and bringing them together into a single image is referred to as what?
- Answer-Fused Images
If two containers made of the same material are filled with hot water, one has a shiny
surface the other is painted black, which surface will appear warmer to a thermal
camera? - Answer-Black
It is against Federal Law to take pictures of something that is outside in public spaces -
Answer-False
(True or False) Wavelengths in the microwave portion of the electromagnetic spectrum
are located between electro-optical (EO) and Infrared (EO)? - Answer-False
(True of False) Areas of black can show up on Synthetic Aperture Radar (SAR) due to a
"shadowing" effect from the object being sensed. - Answer-True
(True or False) The lower an objects reflectance the higher its emissivity. - Answer-True
(True or False) Non-internally heated objects (things that do not produce their own heat)
are environmentally dependent such that sun, wind, and precipitation affect the object
temperature. - Answer-True
Which infrared band has the ability to record images of the heat emitted from objects? -
Answer-MWIR & LWIR
Which of the following best describes brightness? - Answer-Brightness is an attribute of
visual perception.
Answers All Correct
What term describes when the temperature conditions are such that there is a loss of
contrast between two adjacent non-internally heated objects on infrared imagery? -
Answer-Thermal Crossover
When a Synthetic Aperture Radar (SAR) antenna is mounted onto an aircraft, the
aircrafts movement is used to simulate a larger antenna than actually exists. - Answer-
True
Which of the following has the most effect on producing a poor-quality image from an
infrared camera? - Answer-Humidity
Drones are now included in the definition of "aircraft" under federal law. - Answer-True
Which of the following defines the ability of an infrared camera to display the hottest
temperature in a scene as "white" (white hot), or "black" (black hot)? - Answer-Polarity
The separation between dark and bright, making shadows darker and highlights brighter
is referred to as what? - Answer-Contrast
The type of LiDAR that we talked about in class emits a pulse of energy in the Long-
Wave IR (LWIR) wavelength. - Answer-True
The Causby chicken farm won their lawsuit against the Army (U.S. Government)
because of which type of law? - Answer-Property Law
(True or False) A simple box camera can control the direction of light and create an
image using a hole the size of a pinhole. - Answer-True
LiDAR is considered a passive sensor as it can collect data during the daytime. -
Answer-False
Which term best describes the measure of a materials ability to absorb AND radiate
energy? - Answer-Emissivity
Pixel brightness within a digital image can be measured with what? - Answer-Digital
Number Values
, Which of the following best describes the amount of detail an image can capture? -
Answer-Resolution
(True or False). When SAR is used for change detection only one flight, or data
collection event, is needed. - Answer-False
When a beam of white light enters a prism which wavelength, or color of light, bends the
most when exiting. - Answer-Blue
(True or False) The amount of time that a radio wave takes to go out, bounce off an
object, and return to the sensor is used to calculate the objects distance away from the
RADAR. - Answer-True
What does the acronym LiDAR stand for? - Answer-Light Detection and Ranging
The process of electronically taking the best aspects of two images (for example low-
light and infrared) and bringing them together into a single image is referred to as what?
- Answer-Fused Images
If two containers made of the same material are filled with hot water, one has a shiny
surface the other is painted black, which surface will appear warmer to a thermal
camera? - Answer-Black
It is against Federal Law to take pictures of something that is outside in public spaces -
Answer-False
(True or False) Wavelengths in the microwave portion of the electromagnetic spectrum
are located between electro-optical (EO) and Infrared (EO)? - Answer-False
(True of False) Areas of black can show up on Synthetic Aperture Radar (SAR) due to a
"shadowing" effect from the object being sensed. - Answer-True
(True or False) The lower an objects reflectance the higher its emissivity. - Answer-True
(True or False) Non-internally heated objects (things that do not produce their own heat)
are environmentally dependent such that sun, wind, and precipitation affect the object
temperature. - Answer-True
Which infrared band has the ability to record images of the heat emitted from objects? -
Answer-MWIR & LWIR
Which of the following best describes brightness? - Answer-Brightness is an attribute of
visual perception.
