Chapter 1 Aerodynamics for Naval Aviators Quiz

What is the shorthand notation for the ambient static pressure?

• A. P

• C. S

• B. T

• D. V

What is the proportion of the ambient air temperature and the standard sea level air temperature?

• A. 6

• B. 8

• D. 1

• C. 0

What is the shorthand notation for the coefficient of absolute viscosity?

• C. N

• D. μ

• B. M

• A. K

What is the altitude pressure ratio at 40,000 feet?

• A. 0.6292

• B. 0.3741

• C. 0.2971

• D. 0.2462

What is the kinetic energy of a cubic foot of air?

• A. ½MV² ft.-lbs.

• B. ½pV² ft.•

• C. ½pV² ft.•

• D. ½MV² ft.•

What is the purpose of the static ports in an airspeed measuring system?

• To sense the true static pressure of the free airstream

• To calculate the equivalent airspeed

• To measure the dynamic pressure of the airstream

• To indicate the altitude density ratio

What is the equivalent airspeed (EAS) a result of correcting?

• Indicated airspeed (IAS) for errors of the instrument

• CAS for errors of the instrument and errors due to position or location of the installation

• IAS for compressibility effects

• Calibrated airspeed (CAS) for errors due to position or location of the installation

What is the true airspeed (TAS) a result of correcting?

• EAS for density altitude

• EAS for errors due to position or location of the installation

• EAS for errors of the instrument

• Equivalent airspeed (EAS) for compressibility effects

What is the source of the major aerodynamic forces and moments?

• The stagnation pressure at the forward stagnation point

• The streamlines which denote the local flow direction

• The pressure distribution caused by the variation of local static and dynamic pressures on a surface

• The compressibility of the airflow

What is the relationship between static pressure and velocity along the surface defined by?

• The compressibility correction

• The dynamic pressure of the airstream

• The altitude density ratio

• Bernoulli's equation for incompressible flow