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AeE 419 (Long Quiz - Midterm)

Quiz by Sherwin Trinidad

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20 questions
Show answers
  • Q1
    During the planning of a UAV mission, the team needs to decide on the best method of launch and recovery for a large, fixed-wing surveillance UAV. The operation is based on a small island with no runway infrastructure. What is the best launch and recovery method?
    A hand-launched system with belly landings
    A catapult launch with a parachute recovery system
    A vertical takeoff and landing (VTOL) capability
    A net capture system for landing, with a winch-launched takeoff
    30s
  • Q2
    A UAV mission designer needs to optimize the airframe configuration to minimize parasitic drag. Which of the following design choices would be most effective?
    Increasing the surface roughness of the UAV to enhance airflow attachment
    Using a blunt-nose design to improve lift characteristics
    Utilizing a streamlined fuselage with minimal protrusions
    Adding multiple external sensors and antennas for enhanced functionality
    30s
  • Q3
    A UAV is experiencing excessive drag at high speeds. What is the most likely cause based on aerodynamic principles?
    Poor surface finishing leading to turbulent airflow
    Increased wing camber
    Reduced angle of attack
    Higher aspect ratio wing design
    25s
  • Q4
    During a UAV mission, the aircraft encounters unexpected air turbulence. What is the best design feature to mitigate the effects of turbulence on stability?
    Rigid wings with a highly swept configuration
    Shorter wingspan with high wing loading
    Increased dihedral angle with minimal wing flex
    Flexible wing structures with active control surfaces
    30s
  • Q5
    A UAV designer must decide on the best method to reduce pressure drag on a reconnaissance UAV. Which design choice is most effective?
    Implementing a high-lift wing configuration
    Adding additional cooling vents to reduce internal pressure
    Installing vortex generators on the wing's leading edge
    Using a high aspect ratio wing with a tapered trailing edge
    25s
  • Q6
    A UAV engineer is analyzing the effects of induced drag on endurance. What is the best strategy to maximize endurance while minimizing induced drag?
    Decreasing the wing aspect ratio for better maneuverability
    Optimizing the wing's span-to-chord ratio to reduce vortex formation
    Increasing the airspeed beyond optimal cruise velocity
    Increasing the aircraft’s weight to stabilize flight
    30s
  • Q7
    A UAV is designed for long-endurance surveillance missions over the ocean. Which of the following design choices would best enhance its aerodynamic efficiency?
    A low aspect ratio wing with a heavy metal frame
    A delta-wing configuration with no winglets
    A short wingspan with a thick airfoil
    A high aspect ratio wing with a lightweight composite structure
    30s
  • Q8
    A UAV operator observes that an aircraft experiences significant turbulence at high altitudes. Which design change could best mitigate this issue?
    Increasing the fuselage length
    Adding a delta wing instead of a traditional wing
    Increasing the dihedral angle of the wings
    Decreasing the wingspan while keeping the same wing area
    25s
  • Q9
    During a UAS mission, the ground control station detects increased fuel consumption. What aerodynamic factor is most likely contributing to this issue?
    Decreased coefficient of drag
    Reduced wing loading
    Increased skin friction drag
    Increased lift-to-drag ratio
    30s
  • Q10
    A UAV designer must choose between a pusher and a tractor propulsion configuration. What is the most significant aerodynamic advantage of the pusher configuration?
    Higher thrust efficiency
    Reduced propeller-induced interference on the wing
    Increased forward visibility for a camera payload
    Increased lift-to-drag ratio
    25s
  • Q11
    A UAV mission involves operating in strong crosswinds during landing. Which design feature would best help maintain stability during touchdown?
    A swept-wing design
    A conventional tail with a larger vertical stabilizer
    A high-wing configuration
    A T-tail empennage
    30s
  • Q12
    Which of the following best describes a key consideration in the conceptual phase of UAS design that directly affects market viability?
    The ability of the aircraft to operate in extreme environmental conditions.
    The selection of off-the-shelf versus custom-built avionics.
    The projected cost of manufacturing relative to expected sales revenue.
    The aerodynamic efficiency of the airframe to maximize endurance.
    30s
  • Q13
    During the preliminary design phase, why might a physical 'mock-up' of the control station still be useful, even with 3D computer modeling available?
    It ensures that all system components fit within weight constraints.
    It helps in testing aerodynamic performance before wind tunnel testing.
    It provides a tangible sense of operator ergonomics and accessibility.
    It allows for early integration of avionics and electronic systems.
    25s
  • Q14
    A UAV system designed for long-endurance surveillance needs to minimize fuel consumption. Based on this requirement, which design trade-off is most critical?
    Reducing payload capacity to allow for more fuel storage.
    Increasing engine power to maintain high speeds over long distances.
    Designing for a high-thrust-to-weight ratio for rapid ascent capabilities.
    Maximizing wing area and aspect ratio for aerodynamic efficiency.
    30s
  • Q15
    Why is it critical to assess the effect of environmental conditions on a UAV system during early design stages?
    Temperature variations only affect electronics and can be mitigated through insulation.
    Environmental conditions affect only military UAVs and are not a concern for civilian applications.
    Failure to consider environmental impacts can lead to operational inefficiencies or system failure.
    UAVs are generally designed to be environment-independent, so this is not a major concern.
    25s

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