Earth Volume 4 UREs

100 Questions | Total Attempts: 40

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Earth Quizzes & Trivia

Questions and Answers
  • 1. 
    The equator is
    • A. 

      Not a great circle

    • B. 

      Equal distance from the poles

    • C. 

      A plane parallel to the polar axis

    • D. 

      The only fixed reference point on the earth

  • 2. 
    Any plane that passes through the center of the Earth and divides it into two equal parts forms what on the surface of the earth?
    • A. 

      Equator

    • B. 

      Great circle

    • C. 

      Parallel of latitude

    • D. 

      Meridian of longitude

  • 3. 
    Circles running east to west around the earth are called
    • A. 

      Equatorial parallels

    • B. 

      Parallels of latitude

    • C. 

      Equatorial meridians

    • D. 

      Meridians of longitude

  • 4. 
    Parallels of the latitude are parallel to the
    • A. 

      Equator

    • B. 

      Polar axis

    • C. 

      Greenwich meridian

    • D. 

      International date line

  • 5. 
    Parallels between the equator and the north pole carry values from
    • A. 

      0° to 90°N

    • B. 

      0° to 90°S

    • C. 

      0° to 180°N

    • D. 

      0° to 180°S

  • 6. 
    Parallels between the equator and the south pole carry values from
    • A. 

      0° to 90°N

    • B. 

      0° to 90°S

    • C. 

      0° to 180°N

    • D. 

      0° to 180°S

  • 7. 
    The international date line is
    • A. 

      A circle designated 0° latitude

    • B. 

      Designated as the 180° meridian

    • C. 

      A meridian passing through Greenwich, England

    • D. 

      A circle located an equal distance between the north and south poles

  • 8. 
    Starting from the prime meridian and going east to the international dateline, meridians are assigned values of
    • A. 

      0° to 90° east

    • B. 

      0° to 90° west

    • C. 

      0° to 180° east

    • D. 

      0° to 180° west

  • 9. 
    A correct geographic coordinate is
    • A. 

      45°N

    • B. 

      15°S

    • C. 

      99°N 120°E

    • D. 

      76°S 030°W

  • 10. 
    If your aircraft is flying with a true heading of 320° and your destination point is located at a true bearing of 270°, what is your relative bearing to the destination point?
    • A. 

      50°

    • B. 

      270°

    • C. 

      310°

    • D. 

      320°

  • 11. 
    If you fly along the equator from 0°N10°E to 0°N15°E, how many nautical miles(NM) will you have flown?
    • A. 

      250 NM

    • B. 

      300 NM

    • C. 

      350 NM

    • D. 

      400 NM

  • 12. 
    The wind's effect on an aircraft is
    • A. 

      Slight

    • B. 

      Negligible

    • C. 

      Significant

    • D. 

      Unimportant

  • 13. 
    Wind moving from 225° towards 45° at a speed of 15 knots would be expressed as
    • A. 

      45°/15 knots

    • B. 

      225°/15 knots

    • C. 

      225° to 45°/15 knots

    • D. 

      45° from 225°/15 knots

  • 14. 
    The aircraft's path over the Earth's surface is called
    • A. 

      Track

    • B. 

      True bearing

    • C. 

      True heading

    • D. 

      Intended track

  • 15. 
    If the aircraft is flying a true heading of 180° what are the effects of a 180°/20 knot wind on its ground speed and track?
    • A. 

      Increase in ground speed with right drift

    • B. 

      Decrease in ground speed with right drift

    • C. 

      Increase in ground speed with no change in track

    • D. 

      Decrease in ground speed with no change in track

  • 16. 
    What is used to correct true heading and allow the aircraft to achieve the desired true course?
    • A. 

      Drift correction

    • B. 

      Wind disbursement

    • C. 

      Airspeed correction

    • D. 

      Ground speed correction

  • 17. 
    True directions are measured from the
    • A. 

      Equator

    • B. 

      0° meridian

    • C. 

      Magnetic poles

    • D. 

      Geographical poles

  • 18. 
    The lines on navigation charts that connect points of equal magnetic variation are called
    • A. 

      Agonic lines

    • B. 

      Isogonic lines

    • C. 

      Variation lines

    • D. 

      Deviation lines

  • 19. 
    The lines on navigation charts that connect points of zero magnetic variation are called
    • A. 

      Agonic lines

    • B. 

      Isogonic lines

    • C. 

      Variation lines

    • D. 

      Deviation lines

  • 20. 
    An inertial navigation system establishes
    • A. 

      Altitude

    • B. 

      A coordinate system

    • C. 

      A frame of reference

    • D. 

      A frame of displacement

  • 21. 
    Which is not a basic inertial navigation system component
    • A. 

      Platform

    • B. 

      Integrator

    • C. 

      Summing unit

    • D. 

      Accelerometer

  • 22. 
    What inertial navigation system component measures aircraft movement
    • A. 

      Platform

    • B. 

      Integrator

    • C. 

      Computer

    • D. 

      Accelerometer

  • 23. 
    The inertial navigation system's accelerometers must be protected from
    • A. 

      Motion and pressure changes

    • B. 

      Magnetic and motion changes

    • C. 

      Temperature and pressure changes

    • D. 

      Temperature and magnetic changes

  • 24. 
    To measure acceleration in all directions an aircraft's inertial navigation system uses how many accelerometers?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 25. 
    The changing of position with respect to some other body is called
    • A. 

      Speed

    • B. 

      Motion

    • C. 

      Velocity

    • D. 

      Reference

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