Practice Test Geeks(UAS) Unmanned Aircraft Systems Certified Practice Test
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Technical Skills and Training Flashcards

7 cards from real UAS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Technical Skills and Training flashcards as text

  1. What is the primary purpose of a UAS preflight inspection checklist?

    Answer: To systematically verify all components are airworthy before flight

    A preflight checklist ensures each critical system and component is verified airworthy, reducing the risk of in-flight failures.

  2. Which type of UAS control system architecture uses onboard sensors to maintain stable flight without constant pilot input?

    Answer: Stabilized/autopilot mode

    Stabilized or autopilot mode uses onboard IMU and barometer data to autonomously hold attitude and altitude, reducing pilot workload.

  3. When calibrating a UAS compass, why should the operator move away from metal structures?

    Answer: Ferrous metal distorts the local magnetic field, causing inaccurate calibration

    Nearby ferrous metals generate local magnetic anomalies that interfere with compass calibration, resulting in incorrect heading data.

  4. What does ESC stand for in UAS propulsion systems?

    Answer: Electronic Speed Controller

    An Electronic Speed Controller (ESC) regulates motor RPM by converting flight controller signals into the correct power output for each motor.

  5. A multirotor UAS experiences a sudden loss of one motor during flight. What is the immediate effect on the aircraft?

    Answer: The drone will yaw and descend uncontrollably toward the failed motor side

    Loss of one motor disrupts the balanced thrust and torque, causing the drone to yaw and roll toward the failed motor and descend.

  6. What parameter does a UAS barometric altimeter primarily measure?

    Answer: Atmospheric pressure to estimate altitude above the launch point

    Barometric altimeters measure local air pressure and compare it to a reference to calculate relative altitude above the takeoff point.

  7. Which battery chemistry is most commonly used in commercial UAS platforms due to its high energy density and light weight?

    Answer: Lithium Polymer (LiPo)

    Lithium Polymer (LiPo) batteries offer the highest energy density per kilogram among common rechargeable chemistries, making them ideal for UAS applications.