
AeE 419 (Long Quiz - Final)
Quiz by Sherwin Trinidad
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Which statements are correct?
I. Loss of line-of-sight (LOS) caused by mountains can lead to communication loss.
II. A UAV should have a lost-link protocol such as Return-to-Home to ensure safe recovery.
III. A standby backup link (e.g., VHF) may be used if the main communication link fails.

Which statements are correct?
I. Frequency allocation varies from one country to another, creating export challenges.
II. Modular radio system design helps facilitate frequency changes when exporting UAVs.
III. Testing and consultation with local regulators is recommended before export deployment.
Which statements are correct?
I. High-resolution cameras may require very high data rates and large bandwidth.
II. Increasing UAV autonomy can reduce dependence on continuous high-bandwidth communication.
III. Long-range surveillance missions require no stabilization since UAVs fly steadily.

Which statements are correct?
I. Low-light-level cameras can operate effectively with significantly less illumination than ordinary cameras.
II. Low-light-level cameras are mainly used for measuring UAV altitude at night.
III. These cameras are useful for nighttime surveillance missions.
Which statements are correct?
I. Smaller UAVs tend to be more sensitive to turbulence due to high area-to-mass ratio.
II. Scale effects can influence aerodynamic drag and overall flight behavior.
III. UAV scaling has no effect on Reynolds number because Reynolds number is constant.
Which statements are correct?
I. Froude scaling ensures dynamic similarity between a model and the full-scale aircraft.
II. Under Froude scaling, velocity scales with the square root of the linear scale ratio.
III. Under Froude scaling, mass scales linearly with the scale ratio (n¹).
Which statements are correct?
I. Agricultural spraying UAVs fall under civil applications of dispensable payload systems.
II. UAV crop spraying can dispense pesticides, fungicides, and fertilizers.
III. Agricultural spraying improves efficiency and can reduce waste through precise application.