1c651 Vol.4

85 Questions | Total Attempts: 799

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Vehicle Quizzes & Trivia

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Questions and Answers
  • 1. 
    (601) Which system was National Aeronautics and Space Administration’s (NASA) attempt atballoon communications?
    • A. 

      Echo.

    • B. 

      Score.

    • C. 

      Milstar.

    • D. 

      Telstar.

  • 2. 
    (601) Which system was the first multi-national funded communications satellite positioned over the Atlantic Ocean?
    • A. 

      Echo.

    • B. 

      Score.

    • C. 

      Milstar.

    • D. 

      Telstar.

  • 3. 
    (601) Which satellite system is managed by Defense Information Systems Agency (DISA)?
    • A. 

      Global Positioning System (GPS).

    • B. 

      Wideband global satellite communication (SATCOM) system (WGS).

    • C. 

      Defense Meteorological Satellite Program (DMSP).

    • D. 

      Defense Satellite Communications System (DSCS).

  • 4. 
    (601) What satellite system uses a type of spread spectrum that repeats switching of frequencies during transmission?
    • A. 

      Military Strategic and Tactical Relay (Milstar).

    • B. 

      Global Positioning System (GPS).

    • C. 

      Wideband global satellite communication (SATCOM) system (WGS).

    • D. 

      Defense Satellite Communications System (DSCS).

  • 5. 
    (601) Which satellite system uses the government’s allocated 500 Megahertz of X-band and 1 Gigahertz of Ka-band spectrum?
    • A. 

      Military Strategic and Tactical Relay (Milstar).

    • B. 

      Global Positioning System (GPS).

    • C. 

      Wideband global satellite communication (SATCOM) system (WGS).

    • D. 

      Defense Satellite Communications System (DSCS).

  • 6. 
    (601) Which 24 satellite constellation provides navigation and timing information to military and civilian users worldwide?
    • A. 

      Military Strategic and Tactical Relay (Milstar).

    • B. 

      Global Positioning System (GPS).

    • C. 

      Wideband global satellite communication (SATCOM) system (WGS).

    • D. 

      Defense Meteorological Satellite Program (DMSP).

  • 7. 
    (601) The recurrence of global weather monitoring with the combination of day/night and dawn/dusk coverage is every
    • A. 

      Two hours.

    • B. 

      Four hours.

    • C. 

      Six hours.

    • D. 

      12 hours.

  • 8. 
    (602) Which main part of a satellite houses those systems that perform the primary mission?
    • A. 

      Satellite bus.

    • B. 

      Communications/payload.

    • C. 

      Structures and mechanisms.

    • D. 

      Telemetry, tracking, and control.

  • 9. 
    (602) Which is not part of the structures and mechanisms subsystem?
    • A. 

      Booms used to deploy solar arrays.

    • B. 

      Space launch vehicle’s payload fairing.

    • C. 

      Components connecting various satellite sections together.

    • D. 

      Equipment for separating the satellite from the launch vehicle.

  • 10. 
    (602) Which type of stress is the satellite’s structure subject to during handling and stacking sequences?
    • A. 

      Testing.

    • B. 

      Transport.

    • C. 

      Pre-launch.

    • D. 

      Manufacture.

  • 11. 
    (603) Which is a power storage component in the electrical power subsystem?
    • A. 

      Solar arrays.

    • B. 

      Rechargeable batteries.

    • C. 

      Solar array drive assembly.

    • D. 

      Radioisotope thermoelectric generators.

  • 12. 
    (603) What type of battery is used as a continuous energy source and cannot be recharged?
    • A. 

      Primary.

    • B. 

      Secondary.

    • C. 

      Tertiary.

    • D. 

      Fuel cell.

  • 13. 
    (603) What component is the heart of a fuel cell by generating electricity in the form of direct current?
    • A. 

      Heat recovery.

    • B. 

      Fuel cell stack.

    • C. 

      Fuel processor.

    • D. 

      Current inverters and conditioners.

  • 14. 
    (603) Which effect occurs when a solar cell converts sunlight into electricity?
    • A. 

      Gyroscopic.

    • B. 

      Photoelectric.

    • C. 

      Thermoelectric.

    • D. 

      Electromagnetic.

  • 15. 
    (603) What is used to protect solar cells from radiation damage?
    • A. 

      Sun shields.

    • B. 

      Special mirrors.

    • C. 

      Thermal blankets.

    • D. 

      Layers of quartz or sapphire.

  • 16. 
    (603) In what common method of solar cell construction are the solar cell edges overlapped?
    • A. 

      Flat mounting.

    • B. 

      Body mounting.

    • C. 

      Paddle mounting.

    • D. 

      Shingle mounting.

  • 17. 
    (604) Which rocket motor is simple to build, cheaper to produce, and provides additional thrust at liftoff?
    • A. 

      Ion engine.

    • B. 

      Gas-propellant.

    • C. 

      Solid-propellant.

    • D. 

      Liquid-propellant.

  • 18. 
    (604) What type of double-base-propellant has both an oxidizer and a fuel?
    • A. 

      Composite.

    • B. 

      Homogenous.

    • C. 

      Heterogeneous.

    • D. 

      Non-hygroscopic.

  • 19. 
    (604) Which is not an ideal characteristic of solid-propellants?
    • A. 

      High density.

    • B. 

      Hygroscopic.

    • C. 

      Safe and easy to handle.

    • D. 

      Smokeless and flashless.

  • 20. 
    (604) What type of liquid propellant adds a catalyst to increase the speed of reaction?
    • A. 

      Bipropellant.

    • B. 

      Tripropellant.

    • C. 

      Solid propellant.

    • D. 

      Monopropellant.

  • 21. 
    (604) Which is not an ideal characteristic of liquid-propellants?
    • A. 

      Low freezing point (wide range of operation).

    • B. 

      Low heat of combustion per unit of propellant mixture.

    • C. 

      Low toxicity and corrosiveness (easy handling and storage).

    • D. 

      Large availability of raw materials and ease of manufacture.

  • 22. 
    (604) What is a rough measure that calculates how fast a rocket can travel by how fast propellant is ejected out of the back of the rocket engine?
    • A. 

      Specific density.

    • B. 

      Specific impulse.

    • C. 

      Hygroscopicity.

    • D. 

      Ignition uniformity.

  • 23. 
    (605) What type of attitude control occurs when the interaction between the satellite and the environment produce natural stabilizing torque?
    • A. 

      Passive control.

    • B. 

      Spin stabilization.

    • C. 

      Solar wind stabilization.

    • D. 

      Active closed-loop control.

  • 24. 
    (605) What machine is a self-contained navigation system capable of determining a vehicle’s position in inertial space through the double integration of the output of accelerometers?
    • A. 

      Gyroscope.

    • B. 

      Axis generator.

    • C. 

      Computer processors.

    • D. 

      Inertial navigation unit.

  • 25. 
    (606) Which subsystem keeps a satellite within certain temperature limits?
    • A. 

      Propulsion.

    • B. 

      Electrical power.

    • C. 

      Thermal control.

    • D. 

      Telemetry, tracking, and control.