Aerodynamics I

25 Questions | Total Attempts: 85

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Aerodynamics I

This quiz covers the aerodynamics content from Lecture 1. You have 30 minutes to complete the quiz and only one attempt. Enter your GMU ID number (e. G. , G00342659) Please check your email for the password.


Questions and Answers
  • 1. 
    Ambient Pressure is the pressure of the
    • A. 

      Surrounding medium such as a fluid or a gas which comes into contact with the object

    • B. 

      Atmosphere at the altitude at which the aircraft is flying

    • C. 

      Result of the velocity through a fluid or gas

    • D. 

      Feeling in a restaurant or nighclub

  • 2. 
    Static pressure is the pressure of the
    • A. 

      Surrounding medium such as a fluid or a gas which comes into contact with the object

    • B. 

      Atmosphere at the altitude at which the aircraft is flying

    • C. 

      Result of the velocity through a fluid or gas

    • D. 

      Background noise on a long-distance phone call

  • 3. 
    Dynamic pressure is the pressure of the 
    • A. 

      Surrounding medium such as a fluid or a gas which comes into contact with the object

    • B. 

      At the altitude at which the aircraft is flying

    • C. 

      Result of the velocity through a fluid or gas

    • D. 

      Result of Swedish Massage

  • 4. 
    Pressure altitude is the pressure of the
    • A. 

      Differential with respect to Pressure at Sea Level

    • B. 

      Physical distance between aircraft and reference (e.g. Sea Level)

    • C. 

      Difference in density with International Standard Atmosphere (ISA) temperature

    • D. 

      Distance between Center of Earth and parallel surfaces around the spherical earth. Gravitational potential same on a surface

  • 5. 
    Geometry altitude is the
    • A. 

      Pressure differential with respect to Pressure at Sea Level

    • B. 

      Physical distance between aircraft and reference (e.g. Sea Level)

    • C. 

      Difference in density with International Standard Atmosphere (ISA) temperature

    • D. 

      Distance between Center of Earth and parallel surfaces around the spherical earth. Gravitational potential same on a surface

  • 6. 
    Density altitude is the
    • A. 

      Pressure differential with respect to Pressure at Sea Level

    • B. 

      Physical distance between aircraft and reference (e.g. Sea Level)

    • C. 

      Difference in density with International Standard Atmosphere (ISA) temperature

    • D. 

      Distance between Center of Earth and parallel surfaces around the spherical earth. Gravitational potential same on a surface

  • 7. 
    Geopotential altitude is the
    • A. 

      Pressure differential with respect to Pressure at Sea Level

    • B. 

      Measure of the specific potential energy at the given height (relative to the Earth's surface)

    • C. 

      Difference in density with International Standard Atmosphere (ISA) temperature

    • D. 

      Distance between Center of Earth and parallel surfaces around the spherical earth. Gravitational potential same on a surface

  • 8. 
    According to the ISA a decrease in temperature indicates
    • A. 

      An increase in altitude

    • B. 

      A decrease in altitude

    • C. 

      An increase in pressure

    • D. 

      Transition to the ionosphere

  • 9. 
    Indicated Airspeed is
    • A. 

      Airspeed measurement from difference in pressures

    • B. 

      Airspeed correcting for instrument errors

    • C. 

      Airspeed corrected for Compressibility effects

    • D. 

      Actual relative speed between aircraft and airmass, corrected for difference in density at different altitudes

  • 10. 
    Calibrated Airspeed is
    • A. 

      Airspeed measurement from difference in pressures

    • B. 

      Airspeed correcting for instrument errors

    • C. 

      Airspeed corrected for Compressibility effects

    • D. 

      Actual relative speed between aircraft and airmass, corrected for difference in density at different altitudes

  • 11. 
    Equivalent Airspeed is
    • A. 

      Airspeed measurement from difference in pressures

    • B. 

      Airspeed correcting for instrument errors

    • C. 

      Airspeed corrected for Compressibility effects

    • D. 

      Actual relative speed between aircraft and airmass, corrected for difference in density at different altitudes

  • 12. 
    True airspeed is
    • A. 

      Airspeed measurement from difference in pressures

    • B. 

      Airspeed correcting for instrument errors

    • C. 

      Airspeed corrected for Compressibility effects

    • D. 

      Actual relative speed between aircraft and airmass, corrected for difference in density at different altitudes

  • 13. 
    The Angle-of-Attack is represented by letter (Note:  If image is too small, right click on it and select view image)
    • A. 

      A

    • B. 

      B

    • C. 

      F

    • D. 

      D

    • E. 

      E

  • 14. 
    The Leading Edge is represented by letter (Note:  If image is too small, right click on it and select view image)
    • A. 

      B

    • B. 

      F

    • C. 

      C

    • D. 

      A

    • E. 

      E

  • 15. 
    The Meanline is represented by letter(Note:  If image is too small, right click on it and select view image)
    • A. 

      E

    • B. 

      F

    • C. 

      C

    • D. 

      D

    • E. 

      A

  • 16. 
    The Camber is represented by letter(Note:  If image is too small, right click on it and select view image)
    • A. 

      E

    • B. 

      F

    • C. 

      C

    • D. 

      D

    • E. 

      A

  • 17. 
    The Chord is represented by letter(Note:  If image is too small, right click on it and select view image)
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 18. 
    The Trailing Edge is represented by letter(Note:  If image is too small, right click on it and select view image)
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 19. 
    Which parameter CANNOT be computed if the pitot tube (dynamic pressure sensor) becomes clogged?
    • A. 

      Airspeed

    • B. 

      Vertical speed

    • C. 

      Altitude

  • 20. 
    Which parameter (s) CANNOT be computed if the static vents (static pressure sensors) become clogged?
    • A. 

      Airspeed only

    • B. 

      Airspeed and altitude

    • C. 

      Altitude only

  • 21. 
    Geometric altitude is defined as
    • A. 

      Vertical distance measured by comparison of pressure at aircraft altitude with pressure at reference (e.g. 29.92’ Hg, or local pressure at an airport).

    • B. 

      Vertical distance measured by comparison of temperature at aircraft altitude with ISA standard temperature reference

    • C. 

      Vertical distance between Center of Earth and parallel surfaces around the spherical earth.

    • D. 

      Physical distance between aircraft and reference (e.g. mountain top)

  • 22. 
    Density altitude is defined as
    • A. 

      Vertical distance measured by comparison of pressure at aircraft altitude with pressure at reference (e.g. 29.92’ Hg, or local pressure at an airport).

    • B. 

      Vertical distance measured by comparison of temperature at aircraft altitude with ISA standard temperature reference

    • C. 

      Vertical distance between Center of Earth and parallel surfaces around the spherical earth.

    • D. 

      Physical distance between aircraft and reference (e.g. mountain top)

  • 23. 
    Geopotential altitude is defined as
    • A. 

      Vertical distance measured by comparison of pressure at aircraft altitude with pressure at reference (e.g. 29.92’ Hg, or local pressure at an airport)

    • B. 

      Vertical distance measured by comparison of temperature at aircraft altitude with ISA standard temperature reference

    • C. 

      Vertical distance between Center of Earth and parallel surfaces around the spherical earth.

    • D. 

      Physical distance between aircraft and reference (e.g. mountain top)

  • 24. 
    Pressure altitude is defined as
    • A. 

      Vertical distance measured by comparison of pressure at aircraft altitude with pressure at reference (e.g. 29.92’ Hg, or local pressure at an airport).

    • B. 

      Vertical distance measured by comparison of temperature at aircraft altitude with ISA standard temperature reference

    • C. 

      Vertical distance between Center of Earth and parallel surfaces around the spherical earth.

    • D. 

      Physical distance between aircraft and reference (e.g. mountain top)

  • 25. 
    Which combination of atmospheric conditions will reduce aircraft takeoff and climb performance (i.e. longer takeoff roll and lower rate of climb)?
    • A. 

      High temperature, high relative humidity, and high altitude (e.g. Denver on hot humid day).

    • B. 

      High temperature, low relative humidity, and low altitude (e.g. Phoenix on a hot summer day).

    • C. 

      Low temperature, low relative humidity, and low altitude.